(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory(require("jQuery"));
	else if(typeof define === 'function' && define.amd)
		define(["jQuery"], factory);
	else if(typeof exports === 'object')
		exports["app"] = factory(require("jQuery"));
	else
		root["app"] = factory(root["jQuery"]);
})(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE_0__) {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, {
/******/ 				configurable: false,
/******/ 				enumerable: true,
/******/ 				get: getter
/******/ 			});
/******/ 		}
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "/assets/production/";
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = 282);
/******/ })
/************************************************************************/
/******/ ({

/***/ 0:
/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE_0__;

/***/ }),

/***/ 10:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["e"] = makeString;
/* harmony export (immutable) */ __webpack_exports__["a"] = copy;
/* harmony export (immutable) */ __webpack_exports__["h"] = setPath;
/* harmony export (immutable) */ __webpack_exports__["f"] = pushPath;
/* harmony export (immutable) */ __webpack_exports__["d"] = getPath;
/* harmony export (immutable) */ __webpack_exports__["b"] = deepExtend;
/* harmony export (immutable) */ __webpack_exports__["g"] = regexEscape;
/* harmony export (immutable) */ __webpack_exports__["c"] = escape;
function makeString(object) {
  if (object == null) return '';
  /* eslint prefer-template: 0 */
  return '' + object;
}

function copy(a, s, t) {
  a.forEach(function (m) {
    if (s[m]) t[m] = s[m];
  });
}

function getLastOfPath(object, path, Empty) {
  function cleanKey(key) {
    return key && key.indexOf('###') > -1 ? key.replace(/###/g, '.') : key;
  }

  function canNotTraverseDeeper() {
    return !object || typeof object === 'string';
  }

  var stack = typeof path !== 'string' ? [].concat(path) : path.split('.');
  while (stack.length > 1) {
    if (canNotTraverseDeeper()) return {};

    var key = cleanKey(stack.shift());
    if (!object[key] && Empty) object[key] = new Empty();
    object = object[key];
  }

  if (canNotTraverseDeeper()) return {};
  return {
    obj: object,
    k: cleanKey(stack.shift())
  };
}

function setPath(object, path, newValue) {
  var _getLastOfPath = getLastOfPath(object, path, Object),
      obj = _getLastOfPath.obj,
      k = _getLastOfPath.k;

  obj[k] = newValue;
}

function pushPath(object, path, newValue, concat) {
  var _getLastOfPath2 = getLastOfPath(object, path, Object),
      obj = _getLastOfPath2.obj,
      k = _getLastOfPath2.k;

  obj[k] = obj[k] || [];
  if (concat) obj[k] = obj[k].concat(newValue);
  if (!concat) obj[k].push(newValue);
}

function getPath(object, path) {
  var _getLastOfPath3 = getLastOfPath(object, path),
      obj = _getLastOfPath3.obj,
      k = _getLastOfPath3.k;

  if (!obj) return undefined;
  return obj[k];
}

function deepExtend(target, source, overwrite) {
  /* eslint no-restricted-syntax: 0 */
  for (var prop in source) {
    if (prop in target) {
      // If we reached a leaf string in target or source then replace with source or skip depending on the 'overwrite' switch
      if (typeof target[prop] === 'string' || target[prop] instanceof String || typeof source[prop] === 'string' || source[prop] instanceof String) {
        if (overwrite) target[prop] = source[prop];
      } else {
        deepExtend(target[prop], source[prop], overwrite);
      }
    } else {
      target[prop] = source[prop];
    }
  }
  return target;
}

function regexEscape(str) {
  /* eslint no-useless-escape: 0 */
  return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
}

/* eslint-disable */
var _entityMap = {
  "&": "&amp;",
  "<": "&lt;",
  ">": "&gt;",
  '"': '&quot;',
  "'": '&#39;',
  "/": '&#x2F;'
};
/* eslint-enable */

function escape(data) {
  if (typeof data === 'string') {
    return data.replace(/[&<>"'\/]/g, function (s) {
      return _entityMap[s];
    });
  }

  return data;
}

/***/ }),

/***/ 12:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony default export */ __webpack_exports__["a"] = ({

  processors: {},

  addPostProcessor: function addPostProcessor(module) {
    this.processors[module.name] = module;
  },
  handle: function handle(processors, value, key, options, translator) {
    var _this = this;

    processors.forEach(function (processor) {
      if (_this.processors[processor]) value = _this.processors[processor].process(value, key, options, translator);
    });

    return value;
  }
});

/***/ }),

/***/ 13:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["b"] = convertAPIOptions;
/* harmony export (immutable) */ __webpack_exports__["c"] = convertJSONOptions;
/* harmony export (immutable) */ __webpack_exports__["d"] = convertTOptions;
/* harmony export (immutable) */ __webpack_exports__["a"] = appendBackwardsAPI;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
/* eslint no-param-reassign: 0 */


function convertInterpolation(options) {

  options.interpolation = {
    unescapeSuffix: 'HTML'
  };

  options.interpolation.prefix = options.interpolationPrefix || '__';
  options.interpolation.suffix = options.interpolationSuffix || '__';
  options.interpolation.escapeValue = options.escapeInterpolation || false;

  options.interpolation.nestingPrefix = options.reusePrefix || '$t(';
  options.interpolation.nestingSuffix = options.reuseSuffix || ')';

  return options;
}

function convertAPIOptions(options) {
  if (options.resStore) options.resources = options.resStore;

  if (options.ns && options.ns.defaultNs) {
    options.defaultNS = options.ns.defaultNs;
    options.ns = options.ns.namespaces;
  } else {
    options.defaultNS = options.ns || 'translation';
  }

  if (options.fallbackToDefaultNS && options.defaultNS) options.fallbackNS = options.defaultNS;

  options.saveMissing = options.sendMissing;
  options.saveMissingTo = options.sendMissingTo || 'current';
  options.returnNull = !options.fallbackOnNull;
  options.returnEmptyString = !options.fallbackOnEmpty;
  options.returnObjects = options.returnObjectTrees;
  options.joinArrays = '\n';

  options.returnedObjectHandler = options.objectTreeKeyHandler;
  options.parseMissingKeyHandler = options.parseMissingKey;
  options.appendNamespaceToMissingKey = true;

  options.nsSeparator = options.nsseparator || ':';
  options.keySeparator = options.keyseparator || '.';

  if (options.shortcutFunction === 'sprintf') {
    options.overloadTranslationOptionHandler = function handle(args) {
      var values = [];

      for (var i = 1; i < args.length; i++) {
        values.push(args[i]);
      }

      return {
        postProcess: 'sprintf',
        sprintf: values
      };
    };
  }

  options.whitelist = options.lngWhitelist;
  options.preload = options.preload;
  if (options.load === 'current') options.load = 'currentOnly';
  if (options.load === 'unspecific') options.load = 'languageOnly';

  // backend
  options.backend = options.backend || {};
  options.backend.loadPath = options.resGetPath || 'locales/__lng__/__ns__.json';
  options.backend.addPath = options.resPostPath || 'locales/add/__lng__/__ns__';
  options.backend.allowMultiLoading = options.dynamicLoad;

  // cache
  options.cache = options.cache || {};
  options.cache.prefix = 'res_';
  options.cache.expirationTime = 7 * 24 * 60 * 60 * 1000;
  options.cache.enabled = options.useLocalStorage;

  options = convertInterpolation(options);
  if (options.defaultVariables) options.interpolation.defaultVariables = options.defaultVariables;

  // COMPATIBILITY: deprecation
  // if (options.getAsync === false) throw deprecation error

  return options;
}

function convertJSONOptions(options) {
  options = convertInterpolation(options);
  options.joinArrays = '\n';

  return options;
}

function convertTOptions(options) {
  if (options.interpolationPrefix || options.interpolationSuffix || options.escapeInterpolation !== undefined) {
    options = convertInterpolation(options);
  }

  options.nsSeparator = options.nsseparator;
  options.keySeparator = options.keyseparator;

  options.returnObjects = options.returnObjectTrees;

  return options;
}

function appendBackwardsAPI(i18n) {
  i18n.lng = function () {
    __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].deprecate('i18next.lng() can be replaced by i18next.language for detected language or i18next.languages for languages ordered by translation lookup.');
    return i18n.services.languageUtils.toResolveHierarchy(i18n.language)[0];
  };

  i18n.preload = function (lngs, cb) {
    __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].deprecate('i18next.preload() can be replaced with i18next.loadLanguages()');
    i18n.loadLanguages(lngs, cb);
  };

  i18n.setLng = function (lng, options, callback) {
    __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].deprecate('i18next.setLng() can be replaced with i18next.changeLanguage() or i18next.getFixedT() to get a translation function with fixed language or namespace.');
    if (typeof options === 'function') {
      callback = options;
      options = {};
    }
    if (!options) options = {};

    if (options.fixLng === true) {
      if (callback) return callback(null, i18n.getFixedT(lng));
    }

    return i18n.changeLanguage(lng, callback);
  };

  i18n.addPostProcessor = function (name, fc) {
    __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].deprecate('i18next.addPostProcessor() can be replaced by i18next.use({ type: \'postProcessor\', name: \'name\', process: fc })');
    i18n.use({
      type: 'postProcessor',
      name: name,
      process: fc
    });
  };
}

/***/ }),

/***/ 15:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _rx = __webpack_require__(8);

var Rx = _interopRequireWildcard(_rx);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

var hasOwnProp = {}.hasOwnProperty;

function createName(name) {
    return '$' + name;
}

var Emitter = function Emitter() {
    this.subjects = {};
};

Emitter.prototype.emit = function (name, data) {
    var fnName = createName(name);
    this.subjects[fnName] || (this.subjects[fnName] = new Rx.Subject());
    this.subjects[fnName].onNext(data);

    return this.subjects[fnName];
};

Emitter.prototype.listen = function (name, handler) {
    var fnName = createName(name);
    this.subjects[fnName] || (this.subjects[fnName] = new Rx.Subject());
    return this.subjects[fnName].subscribe(handler);
};
Emitter.prototype.listenAll = function (group, name, handler) {
    for (var prop in group) {
        var fnName = createName(prop);
        this.subjects[fnName] || (this.subjects[fnName] = new Rx.Subject());
        this.subjects[fnName].subscribe(group[prop]);
    }
};

Emitter.prototype.disposeOf = function (startWith) {
    var search = new RegExp('^\\$' + startWith);
    var subjects = this.subjects;
    for (var prop in subjects) {
        if (hasOwnProp.call(subjects, prop)) {
            if (search.test(prop)) {
                subjects[prop].dispose();
            }
        }
    }

    this.subjects = {};
};
Emitter.prototype.dispose = function () {
    var subjects = this.subjects;
    for (var prop in subjects) {
        if (hasOwnProp.call(subjects, prop)) {
            subjects[prop].dispose();
        }
    }

    this.subjects = {};
};
exports.default = Emitter;

/***/ }),

/***/ 16:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _applicationConfigService = __webpack_require__(18);

var _applicationConfigService2 = _interopRequireDefault(_applicationConfigService);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var instance = null;

var ConfigService = function (_ApplicationConfigSer) {
    _inherits(ConfigService, _ApplicationConfigSer);

    function ConfigService(configuration) {
        var _ret;

        _classCallCheck(this, ConfigService);

        var _this = _possibleConstructorReturn(this, (ConfigService.__proto__ || Object.getPrototypeOf(ConfigService)).call(this, configuration));

        if (!instance) {

            instance = _this;
        }

        return _ret = instance, _possibleConstructorReturn(_this, _ret);
    }

    return ConfigService;
}(_applicationConfigService2.default);

exports.default = ConfigService;

/***/ }),

/***/ 18:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _underscore = __webpack_require__(2);

var _ = _interopRequireWildcard(_underscore);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var instance = null;

var ApplicationConfigService = function () {
    function ApplicationConfigService(config) {
        _classCallCheck(this, ApplicationConfigService);

        // if( !instance ) {
        //     instance = this;
        // }
        this.configuration = config;
        // return instance;
    }

    _createClass(ApplicationConfigService, [{
        key: 'get',
        value: function get(configKey) {
            if (configKey !== undefined) {
                var foundValue = this._findKeyValue(configKey || this.configuration);
                switch (typeof foundValue === 'undefined' ? 'undefined' : _typeof(foundValue)) {
                    case 'string':
                        return foundValue;
                    default:
                        return foundValue ? foundValue : null;

                }
            }

            return this.configuration;
        }
    }, {
        key: 'set',
        value: function set(configKey, value) {
            if (configKey !== undefined) {
                if (_typeof(this.configuration[configKey]) === 'object') {
                    // merge
                    this.configuration[configKey] = _.extend({}, this.configuration[configKey], value);
                } else {
                    this.configuration[configKey] = value;
                }
            }
        }

        // @TODO cast

    }, {
        key: '_findKeyValue',
        value: function _findKeyValue(configName) {
            if (!configName) {
                return undefined;
            }

            var isStr = _.isString(configName);
            var name = isStr ? configName : configName.name;
            var path = configName.indexOf('.') > 0 ? true : false;

            if (path) {
                return this._search(this.configuration, name);
            }
            var state = this.configuration[name];
            if (state && (isStr || !isStr && state === configName)) {
                return state;
            } else if (isStr) {
                return state;
            }
            return undefined;
        }

        // @TODO cast

    }, {
        key: '_search',
        value: function _search(obj, path) {
            if (_.isNumber(path)) {
                path = [path];
            }
            if (_.isEmpty(path)) {
                return obj;
            }
            if (_.isEmpty(obj)) {
                return null;
            }
            if (_.isString(path)) {
                return this._search(obj, path.split('.'));
            }

            var currentPath = path[0];

            if (path.length === 1) {
                if (obj[currentPath] === void 0) {
                    return null;
                }
                return obj[currentPath];
            }

            return this._search(obj[currentPath], path.slice(1));
        }
    }]);

    return ApplicationConfigService;
}();

exports.default = ApplicationConfigService;

/***/ }),

/***/ 2:
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global, module) {var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;//     Underscore.js 1.9.1
//     http://underscorejs.org
//     (c) 2009-2018 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
//     Underscore may be freely distributed under the MIT license.

(function() {

  // Baseline setup
  // --------------

  // Establish the root object, `window` (`self`) in the browser, `global`
  // on the server, or `this` in some virtual machines. We use `self`
  // instead of `window` for `WebWorker` support.
  var root = typeof self == 'object' && self.self === self && self ||
            typeof global == 'object' && global.global === global && global ||
            this ||
            {};

  // Save the previous value of the `_` variable.
  var previousUnderscore = root._;

  // Save bytes in the minified (but not gzipped) version:
  var ArrayProto = Array.prototype, ObjProto = Object.prototype;
  var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;

  // Create quick reference variables for speed access to core prototypes.
  var push = ArrayProto.push,
      slice = ArrayProto.slice,
      toString = ObjProto.toString,
      hasOwnProperty = ObjProto.hasOwnProperty;

  // All **ECMAScript 5** native function implementations that we hope to use
  // are declared here.
  var nativeIsArray = Array.isArray,
      nativeKeys = Object.keys,
      nativeCreate = Object.create;

  // Naked function reference for surrogate-prototype-swapping.
  var Ctor = function(){};

  // Create a safe reference to the Underscore object for use below.
  var _ = function(obj) {
    if (obj instanceof _) return obj;
    if (!(this instanceof _)) return new _(obj);
    this._wrapped = obj;
  };

  // Export the Underscore object for **Node.js**, with
  // backwards-compatibility for their old module API. If we're in
  // the browser, add `_` as a global object.
  // (`nodeType` is checked to ensure that `module`
  // and `exports` are not HTML elements.)
  if (typeof exports != 'undefined' && !exports.nodeType) {
    if (typeof module != 'undefined' && !module.nodeType && module.exports) {
      exports = module.exports = _;
    }
    exports._ = _;
  } else {
    root._ = _;
  }

  // Current version.
  _.VERSION = '1.9.1';

  // Internal function that returns an efficient (for current engines) version
  // of the passed-in callback, to be repeatedly applied in other Underscore
  // functions.
  var optimizeCb = function(func, context, argCount) {
    if (context === void 0) return func;
    switch (argCount == null ? 3 : argCount) {
      case 1: return function(value) {
        return func.call(context, value);
      };
      // The 2-argument case is omitted because we’re not using it.
      case 3: return function(value, index, collection) {
        return func.call(context, value, index, collection);
      };
      case 4: return function(accumulator, value, index, collection) {
        return func.call(context, accumulator, value, index, collection);
      };
    }
    return function() {
      return func.apply(context, arguments);
    };
  };

  var builtinIteratee;

  // An internal function to generate callbacks that can be applied to each
  // element in a collection, returning the desired result — either `identity`,
  // an arbitrary callback, a property matcher, or a property accessor.
  var cb = function(value, context, argCount) {
    if (_.iteratee !== builtinIteratee) return _.iteratee(value, context);
    if (value == null) return _.identity;
    if (_.isFunction(value)) return optimizeCb(value, context, argCount);
    if (_.isObject(value) && !_.isArray(value)) return _.matcher(value);
    return _.property(value);
  };

  // External wrapper for our callback generator. Users may customize
  // `_.iteratee` if they want additional predicate/iteratee shorthand styles.
  // This abstraction hides the internal-only argCount argument.
  _.iteratee = builtinIteratee = function(value, context) {
    return cb(value, context, Infinity);
  };

  // Some functions take a variable number of arguments, or a few expected
  // arguments at the beginning and then a variable number of values to operate
  // on. This helper accumulates all remaining arguments past the function’s
  // argument length (or an explicit `startIndex`), into an array that becomes
  // the last argument. Similar to ES6’s "rest parameter".
  var restArguments = function(func, startIndex) {
    startIndex = startIndex == null ? func.length - 1 : +startIndex;
    return function() {
      var length = Math.max(arguments.length - startIndex, 0),
          rest = Array(length),
          index = 0;
      for (; index < length; index++) {
        rest[index] = arguments[index + startIndex];
      }
      switch (startIndex) {
        case 0: return func.call(this, rest);
        case 1: return func.call(this, arguments[0], rest);
        case 2: return func.call(this, arguments[0], arguments[1], rest);
      }
      var args = Array(startIndex + 1);
      for (index = 0; index < startIndex; index++) {
        args[index] = arguments[index];
      }
      args[startIndex] = rest;
      return func.apply(this, args);
    };
  };

  // An internal function for creating a new object that inherits from another.
  var baseCreate = function(prototype) {
    if (!_.isObject(prototype)) return {};
    if (nativeCreate) return nativeCreate(prototype);
    Ctor.prototype = prototype;
    var result = new Ctor;
    Ctor.prototype = null;
    return result;
  };

  var shallowProperty = function(key) {
    return function(obj) {
      return obj == null ? void 0 : obj[key];
    };
  };

  var has = function(obj, path) {
    return obj != null && hasOwnProperty.call(obj, path);
  }

  var deepGet = function(obj, path) {
    var length = path.length;
    for (var i = 0; i < length; i++) {
      if (obj == null) return void 0;
      obj = obj[path[i]];
    }
    return length ? obj : void 0;
  };

  // Helper for collection methods to determine whether a collection
  // should be iterated as an array or as an object.
  // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
  // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094
  var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
  var getLength = shallowProperty('length');
  var isArrayLike = function(collection) {
    var length = getLength(collection);
    return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
  };

  // Collection Functions
  // --------------------

  // The cornerstone, an `each` implementation, aka `forEach`.
  // Handles raw objects in addition to array-likes. Treats all
  // sparse array-likes as if they were dense.
  _.each = _.forEach = function(obj, iteratee, context) {
    iteratee = optimizeCb(iteratee, context);
    var i, length;
    if (isArrayLike(obj)) {
      for (i = 0, length = obj.length; i < length; i++) {
        iteratee(obj[i], i, obj);
      }
    } else {
      var keys = _.keys(obj);
      for (i = 0, length = keys.length; i < length; i++) {
        iteratee(obj[keys[i]], keys[i], obj);
      }
    }
    return obj;
  };

  // Return the results of applying the iteratee to each element.
  _.map = _.collect = function(obj, iteratee, context) {
    iteratee = cb(iteratee, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length,
        results = Array(length);
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      results[index] = iteratee(obj[currentKey], currentKey, obj);
    }
    return results;
  };

  // Create a reducing function iterating left or right.
  var createReduce = function(dir) {
    // Wrap code that reassigns argument variables in a separate function than
    // the one that accesses `arguments.length` to avoid a perf hit. (#1991)
    var reducer = function(obj, iteratee, memo, initial) {
      var keys = !isArrayLike(obj) && _.keys(obj),
          length = (keys || obj).length,
          index = dir > 0 ? 0 : length - 1;
      if (!initial) {
        memo = obj[keys ? keys[index] : index];
        index += dir;
      }
      for (; index >= 0 && index < length; index += dir) {
        var currentKey = keys ? keys[index] : index;
        memo = iteratee(memo, obj[currentKey], currentKey, obj);
      }
      return memo;
    };

    return function(obj, iteratee, memo, context) {
      var initial = arguments.length >= 3;
      return reducer(obj, optimizeCb(iteratee, context, 4), memo, initial);
    };
  };

  // **Reduce** builds up a single result from a list of values, aka `inject`,
  // or `foldl`.
  _.reduce = _.foldl = _.inject = createReduce(1);

  // The right-associative version of reduce, also known as `foldr`.
  _.reduceRight = _.foldr = createReduce(-1);

  // Return the first value which passes a truth test. Aliased as `detect`.
  _.find = _.detect = function(obj, predicate, context) {
    var keyFinder = isArrayLike(obj) ? _.findIndex : _.findKey;
    var key = keyFinder(obj, predicate, context);
    if (key !== void 0 && key !== -1) return obj[key];
  };

  // Return all the elements that pass a truth test.
  // Aliased as `select`.
  _.filter = _.select = function(obj, predicate, context) {
    var results = [];
    predicate = cb(predicate, context);
    _.each(obj, function(value, index, list) {
      if (predicate(value, index, list)) results.push(value);
    });
    return results;
  };

  // Return all the elements for which a truth test fails.
  _.reject = function(obj, predicate, context) {
    return _.filter(obj, _.negate(cb(predicate)), context);
  };

  // Determine whether all of the elements match a truth test.
  // Aliased as `all`.
  _.every = _.all = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length;
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      if (!predicate(obj[currentKey], currentKey, obj)) return false;
    }
    return true;
  };

  // Determine if at least one element in the object matches a truth test.
  // Aliased as `any`.
  _.some = _.any = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length;
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      if (predicate(obj[currentKey], currentKey, obj)) return true;
    }
    return false;
  };

  // Determine if the array or object contains a given item (using `===`).
  // Aliased as `includes` and `include`.
  _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) {
    if (!isArrayLike(obj)) obj = _.values(obj);
    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
    return _.indexOf(obj, item, fromIndex) >= 0;
  };

  // Invoke a method (with arguments) on every item in a collection.
  _.invoke = restArguments(function(obj, path, args) {
    var contextPath, func;
    if (_.isFunction(path)) {
      func = path;
    } else if (_.isArray(path)) {
      contextPath = path.slice(0, -1);
      path = path[path.length - 1];
    }
    return _.map(obj, function(context) {
      var method = func;
      if (!method) {
        if (contextPath && contextPath.length) {
          context = deepGet(context, contextPath);
        }
        if (context == null) return void 0;
        method = context[path];
      }
      return method == null ? method : method.apply(context, args);
    });
  });

  // Convenience version of a common use case of `map`: fetching a property.
  _.pluck = function(obj, key) {
    return _.map(obj, _.property(key));
  };

  // Convenience version of a common use case of `filter`: selecting only objects
  // containing specific `key:value` pairs.
  _.where = function(obj, attrs) {
    return _.filter(obj, _.matcher(attrs));
  };

  // Convenience version of a common use case of `find`: getting the first object
  // containing specific `key:value` pairs.
  _.findWhere = function(obj, attrs) {
    return _.find(obj, _.matcher(attrs));
  };

  // Return the maximum element (or element-based computation).
  _.max = function(obj, iteratee, context) {
    var result = -Infinity, lastComputed = -Infinity,
        value, computed;
    if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {
      obj = isArrayLike(obj) ? obj : _.values(obj);
      for (var i = 0, length = obj.length; i < length; i++) {
        value = obj[i];
        if (value != null && value > result) {
          result = value;
        }
      }
    } else {
      iteratee = cb(iteratee, context);
      _.each(obj, function(v, index, list) {
        computed = iteratee(v, index, list);
        if (computed > lastComputed || computed === -Infinity && result === -Infinity) {
          result = v;
          lastComputed = computed;
        }
      });
    }
    return result;
  };

  // Return the minimum element (or element-based computation).
  _.min = function(obj, iteratee, context) {
    var result = Infinity, lastComputed = Infinity,
        value, computed;
    if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {
      obj = isArrayLike(obj) ? obj : _.values(obj);
      for (var i = 0, length = obj.length; i < length; i++) {
        value = obj[i];
        if (value != null && value < result) {
          result = value;
        }
      }
    } else {
      iteratee = cb(iteratee, context);
      _.each(obj, function(v, index, list) {
        computed = iteratee(v, index, list);
        if (computed < lastComputed || computed === Infinity && result === Infinity) {
          result = v;
          lastComputed = computed;
        }
      });
    }
    return result;
  };

  // Shuffle a collection.
  _.shuffle = function(obj) {
    return _.sample(obj, Infinity);
  };

  // Sample **n** random values from a collection using the modern version of the
  // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
  // If **n** is not specified, returns a single random element.
  // The internal `guard` argument allows it to work with `map`.
  _.sample = function(obj, n, guard) {
    if (n == null || guard) {
      if (!isArrayLike(obj)) obj = _.values(obj);
      return obj[_.random(obj.length - 1)];
    }
    var sample = isArrayLike(obj) ? _.clone(obj) : _.values(obj);
    var length = getLength(sample);
    n = Math.max(Math.min(n, length), 0);
    var last = length - 1;
    for (var index = 0; index < n; index++) {
      var rand = _.random(index, last);
      var temp = sample[index];
      sample[index] = sample[rand];
      sample[rand] = temp;
    }
    return sample.slice(0, n);
  };

  // Sort the object's values by a criterion produced by an iteratee.
  _.sortBy = function(obj, iteratee, context) {
    var index = 0;
    iteratee = cb(iteratee, context);
    return _.pluck(_.map(obj, function(value, key, list) {
      return {
        value: value,
        index: index++,
        criteria: iteratee(value, key, list)
      };
    }).sort(function(left, right) {
      var a = left.criteria;
      var b = right.criteria;
      if (a !== b) {
        if (a > b || a === void 0) return 1;
        if (a < b || b === void 0) return -1;
      }
      return left.index - right.index;
    }), 'value');
  };

  // An internal function used for aggregate "group by" operations.
  var group = function(behavior, partition) {
    return function(obj, iteratee, context) {
      var result = partition ? [[], []] : {};
      iteratee = cb(iteratee, context);
      _.each(obj, function(value, index) {
        var key = iteratee(value, index, obj);
        behavior(result, value, key);
      });
      return result;
    };
  };

  // Groups the object's values by a criterion. Pass either a string attribute
  // to group by, or a function that returns the criterion.
  _.groupBy = group(function(result, value, key) {
    if (has(result, key)) result[key].push(value); else result[key] = [value];
  });

  // Indexes the object's values by a criterion, similar to `groupBy`, but for
  // when you know that your index values will be unique.
  _.indexBy = group(function(result, value, key) {
    result[key] = value;
  });

  // Counts instances of an object that group by a certain criterion. Pass
  // either a string attribute to count by, or a function that returns the
  // criterion.
  _.countBy = group(function(result, value, key) {
    if (has(result, key)) result[key]++; else result[key] = 1;
  });

  var reStrSymbol = /[^\ud800-\udfff]|[\ud800-\udbff][\udc00-\udfff]|[\ud800-\udfff]/g;
  // Safely create a real, live array from anything iterable.
  _.toArray = function(obj) {
    if (!obj) return [];
    if (_.isArray(obj)) return slice.call(obj);
    if (_.isString(obj)) {
      // Keep surrogate pair characters together
      return obj.match(reStrSymbol);
    }
    if (isArrayLike(obj)) return _.map(obj, _.identity);
    return _.values(obj);
  };

  // Return the number of elements in an object.
  _.size = function(obj) {
    if (obj == null) return 0;
    return isArrayLike(obj) ? obj.length : _.keys(obj).length;
  };

  // Split a collection into two arrays: one whose elements all satisfy the given
  // predicate, and one whose elements all do not satisfy the predicate.
  _.partition = group(function(result, value, pass) {
    result[pass ? 0 : 1].push(value);
  }, true);

  // Array Functions
  // ---------------

  // Get the first element of an array. Passing **n** will return the first N
  // values in the array. Aliased as `head` and `take`. The **guard** check
  // allows it to work with `_.map`.
  _.first = _.head = _.take = function(array, n, guard) {
    if (array == null || array.length < 1) return n == null ? void 0 : [];
    if (n == null || guard) return array[0];
    return _.initial(array, array.length - n);
  };

  // Returns everything but the last entry of the array. Especially useful on
  // the arguments object. Passing **n** will return all the values in
  // the array, excluding the last N.
  _.initial = function(array, n, guard) {
    return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));
  };

  // Get the last element of an array. Passing **n** will return the last N
  // values in the array.
  _.last = function(array, n, guard) {
    if (array == null || array.length < 1) return n == null ? void 0 : [];
    if (n == null || guard) return array[array.length - 1];
    return _.rest(array, Math.max(0, array.length - n));
  };

  // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
  // Especially useful on the arguments object. Passing an **n** will return
  // the rest N values in the array.
  _.rest = _.tail = _.drop = function(array, n, guard) {
    return slice.call(array, n == null || guard ? 1 : n);
  };

  // Trim out all falsy values from an array.
  _.compact = function(array) {
    return _.filter(array, Boolean);
  };

  // Internal implementation of a recursive `flatten` function.
  var flatten = function(input, shallow, strict, output) {
    output = output || [];
    var idx = output.length;
    for (var i = 0, length = getLength(input); i < length; i++) {
      var value = input[i];
      if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {
        // Flatten current level of array or arguments object.
        if (shallow) {
          var j = 0, len = value.length;
          while (j < len) output[idx++] = value[j++];
        } else {
          flatten(value, shallow, strict, output);
          idx = output.length;
        }
      } else if (!strict) {
        output[idx++] = value;
      }
    }
    return output;
  };

  // Flatten out an array, either recursively (by default), or just one level.
  _.flatten = function(array, shallow) {
    return flatten(array, shallow, false);
  };

  // Return a version of the array that does not contain the specified value(s).
  _.without = restArguments(function(array, otherArrays) {
    return _.difference(array, otherArrays);
  });

  // Produce a duplicate-free version of the array. If the array has already
  // been sorted, you have the option of using a faster algorithm.
  // The faster algorithm will not work with an iteratee if the iteratee
  // is not a one-to-one function, so providing an iteratee will disable
  // the faster algorithm.
  // Aliased as `unique`.
  _.uniq = _.unique = function(array, isSorted, iteratee, context) {
    if (!_.isBoolean(isSorted)) {
      context = iteratee;
      iteratee = isSorted;
      isSorted = false;
    }
    if (iteratee != null) iteratee = cb(iteratee, context);
    var result = [];
    var seen = [];
    for (var i = 0, length = getLength(array); i < length; i++) {
      var value = array[i],
          computed = iteratee ? iteratee(value, i, array) : value;
      if (isSorted && !iteratee) {
        if (!i || seen !== computed) result.push(value);
        seen = computed;
      } else if (iteratee) {
        if (!_.contains(seen, computed)) {
          seen.push(computed);
          result.push(value);
        }
      } else if (!_.contains(result, value)) {
        result.push(value);
      }
    }
    return result;
  };

  // Produce an array that contains the union: each distinct element from all of
  // the passed-in arrays.
  _.union = restArguments(function(arrays) {
    return _.uniq(flatten(arrays, true, true));
  });

  // Produce an array that contains every item shared between all the
  // passed-in arrays.
  _.intersection = function(array) {
    var result = [];
    var argsLength = arguments.length;
    for (var i = 0, length = getLength(array); i < length; i++) {
      var item = array[i];
      if (_.contains(result, item)) continue;
      var j;
      for (j = 1; j < argsLength; j++) {
        if (!_.contains(arguments[j], item)) break;
      }
      if (j === argsLength) result.push(item);
    }
    return result;
  };

  // Take the difference between one array and a number of other arrays.
  // Only the elements present in just the first array will remain.
  _.difference = restArguments(function(array, rest) {
    rest = flatten(rest, true, true);
    return _.filter(array, function(value){
      return !_.contains(rest, value);
    });
  });

  // Complement of _.zip. Unzip accepts an array of arrays and groups
  // each array's elements on shared indices.
  _.unzip = function(array) {
    var length = array && _.max(array, getLength).length || 0;
    var result = Array(length);

    for (var index = 0; index < length; index++) {
      result[index] = _.pluck(array, index);
    }
    return result;
  };

  // Zip together multiple lists into a single array -- elements that share
  // an index go together.
  _.zip = restArguments(_.unzip);

  // Converts lists into objects. Pass either a single array of `[key, value]`
  // pairs, or two parallel arrays of the same length -- one of keys, and one of
  // the corresponding values. Passing by pairs is the reverse of _.pairs.
  _.object = function(list, values) {
    var result = {};
    for (var i = 0, length = getLength(list); i < length; i++) {
      if (values) {
        result[list[i]] = values[i];
      } else {
        result[list[i][0]] = list[i][1];
      }
    }
    return result;
  };

  // Generator function to create the findIndex and findLastIndex functions.
  var createPredicateIndexFinder = function(dir) {
    return function(array, predicate, context) {
      predicate = cb(predicate, context);
      var length = getLength(array);
      var index = dir > 0 ? 0 : length - 1;
      for (; index >= 0 && index < length; index += dir) {
        if (predicate(array[index], index, array)) return index;
      }
      return -1;
    };
  };

  // Returns the first index on an array-like that passes a predicate test.
  _.findIndex = createPredicateIndexFinder(1);
  _.findLastIndex = createPredicateIndexFinder(-1);

  // Use a comparator function to figure out the smallest index at which
  // an object should be inserted so as to maintain order. Uses binary search.
  _.sortedIndex = function(array, obj, iteratee, context) {
    iteratee = cb(iteratee, context, 1);
    var value = iteratee(obj);
    var low = 0, high = getLength(array);
    while (low < high) {
      var mid = Math.floor((low + high) / 2);
      if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
    }
    return low;
  };

  // Generator function to create the indexOf and lastIndexOf functions.
  var createIndexFinder = function(dir, predicateFind, sortedIndex) {
    return function(array, item, idx) {
      var i = 0, length = getLength(array);
      if (typeof idx == 'number') {
        if (dir > 0) {
          i = idx >= 0 ? idx : Math.max(idx + length, i);
        } else {
          length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;
        }
      } else if (sortedIndex && idx && length) {
        idx = sortedIndex(array, item);
        return array[idx] === item ? idx : -1;
      }
      if (item !== item) {
        idx = predicateFind(slice.call(array, i, length), _.isNaN);
        return idx >= 0 ? idx + i : -1;
      }
      for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {
        if (array[idx] === item) return idx;
      }
      return -1;
    };
  };

  // Return the position of the first occurrence of an item in an array,
  // or -1 if the item is not included in the array.
  // If the array is large and already in sort order, pass `true`
  // for **isSorted** to use binary search.
  _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex);
  _.lastIndexOf = createIndexFinder(-1, _.findLastIndex);

  // Generate an integer Array containing an arithmetic progression. A port of
  // the native Python `range()` function. See
  // [the Python documentation](http://docs.python.org/library/functions.html#range).
  _.range = function(start, stop, step) {
    if (stop == null) {
      stop = start || 0;
      start = 0;
    }
    if (!step) {
      step = stop < start ? -1 : 1;
    }

    var length = Math.max(Math.ceil((stop - start) / step), 0);
    var range = Array(length);

    for (var idx = 0; idx < length; idx++, start += step) {
      range[idx] = start;
    }

    return range;
  };

  // Chunk a single array into multiple arrays, each containing `count` or fewer
  // items.
  _.chunk = function(array, count) {
    if (count == null || count < 1) return [];
    var result = [];
    var i = 0, length = array.length;
    while (i < length) {
      result.push(slice.call(array, i, i += count));
    }
    return result;
  };

  // Function (ahem) Functions
  // ------------------

  // Determines whether to execute a function as a constructor
  // or a normal function with the provided arguments.
  var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {
    if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
    var self = baseCreate(sourceFunc.prototype);
    var result = sourceFunc.apply(self, args);
    if (_.isObject(result)) return result;
    return self;
  };

  // Create a function bound to a given object (assigning `this`, and arguments,
  // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
  // available.
  _.bind = restArguments(function(func, context, args) {
    if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
    var bound = restArguments(function(callArgs) {
      return executeBound(func, bound, context, this, args.concat(callArgs));
    });
    return bound;
  });

  // Partially apply a function by creating a version that has had some of its
  // arguments pre-filled, without changing its dynamic `this` context. _ acts
  // as a placeholder by default, allowing any combination of arguments to be
  // pre-filled. Set `_.partial.placeholder` for a custom placeholder argument.
  _.partial = restArguments(function(func, boundArgs) {
    var placeholder = _.partial.placeholder;
    var bound = function() {
      var position = 0, length = boundArgs.length;
      var args = Array(length);
      for (var i = 0; i < length; i++) {
        args[i] = boundArgs[i] === placeholder ? arguments[position++] : boundArgs[i];
      }
      while (position < arguments.length) args.push(arguments[position++]);
      return executeBound(func, bound, this, this, args);
    };
    return bound;
  });

  _.partial.placeholder = _;

  // Bind a number of an object's methods to that object. Remaining arguments
  // are the method names to be bound. Useful for ensuring that all callbacks
  // defined on an object belong to it.
  _.bindAll = restArguments(function(obj, keys) {
    keys = flatten(keys, false, false);
    var index = keys.length;
    if (index < 1) throw new Error('bindAll must be passed function names');
    while (index--) {
      var key = keys[index];
      obj[key] = _.bind(obj[key], obj);
    }
  });

  // Memoize an expensive function by storing its results.
  _.memoize = function(func, hasher) {
    var memoize = function(key) {
      var cache = memoize.cache;
      var address = '' + (hasher ? hasher.apply(this, arguments) : key);
      if (!has(cache, address)) cache[address] = func.apply(this, arguments);
      return cache[address];
    };
    memoize.cache = {};
    return memoize;
  };

  // Delays a function for the given number of milliseconds, and then calls
  // it with the arguments supplied.
  _.delay = restArguments(function(func, wait, args) {
    return setTimeout(function() {
      return func.apply(null, args);
    }, wait);
  });

  // Defers a function, scheduling it to run after the current call stack has
  // cleared.
  _.defer = _.partial(_.delay, _, 1);

  // Returns a function, that, when invoked, will only be triggered at most once
  // during a given window of time. Normally, the throttled function will run
  // as much as it can, without ever going more than once per `wait` duration;
  // but if you'd like to disable the execution on the leading edge, pass
  // `{leading: false}`. To disable execution on the trailing edge, ditto.
  _.throttle = function(func, wait, options) {
    var timeout, context, args, result;
    var previous = 0;
    if (!options) options = {};

    var later = function() {
      previous = options.leading === false ? 0 : _.now();
      timeout = null;
      result = func.apply(context, args);
      if (!timeout) context = args = null;
    };

    var throttled = function() {
      var now = _.now();
      if (!previous && options.leading === false) previous = now;
      var remaining = wait - (now - previous);
      context = this;
      args = arguments;
      if (remaining <= 0 || remaining > wait) {
        if (timeout) {
          clearTimeout(timeout);
          timeout = null;
        }
        previous = now;
        result = func.apply(context, args);
        if (!timeout) context = args = null;
      } else if (!timeout && options.trailing !== false) {
        timeout = setTimeout(later, remaining);
      }
      return result;
    };

    throttled.cancel = function() {
      clearTimeout(timeout);
      previous = 0;
      timeout = context = args = null;
    };

    return throttled;
  };

  // Returns a function, that, as long as it continues to be invoked, will not
  // be triggered. The function will be called after it stops being called for
  // N milliseconds. If `immediate` is passed, trigger the function on the
  // leading edge, instead of the trailing.
  _.debounce = function(func, wait, immediate) {
    var timeout, result;

    var later = function(context, args) {
      timeout = null;
      if (args) result = func.apply(context, args);
    };

    var debounced = restArguments(function(args) {
      if (timeout) clearTimeout(timeout);
      if (immediate) {
        var callNow = !timeout;
        timeout = setTimeout(later, wait);
        if (callNow) result = func.apply(this, args);
      } else {
        timeout = _.delay(later, wait, this, args);
      }

      return result;
    });

    debounced.cancel = function() {
      clearTimeout(timeout);
      timeout = null;
    };

    return debounced;
  };

  // Returns the first function passed as an argument to the second,
  // allowing you to adjust arguments, run code before and after, and
  // conditionally execute the original function.
  _.wrap = function(func, wrapper) {
    return _.partial(wrapper, func);
  };

  // Returns a negated version of the passed-in predicate.
  _.negate = function(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    };
  };

  // Returns a function that is the composition of a list of functions, each
  // consuming the return value of the function that follows.
  _.compose = function() {
    var args = arguments;
    var start = args.length - 1;
    return function() {
      var i = start;
      var result = args[start].apply(this, arguments);
      while (i--) result = args[i].call(this, result);
      return result;
    };
  };

  // Returns a function that will only be executed on and after the Nth call.
  _.after = function(times, func) {
    return function() {
      if (--times < 1) {
        return func.apply(this, arguments);
      }
    };
  };

  // Returns a function that will only be executed up to (but not including) the Nth call.
  _.before = function(times, func) {
    var memo;
    return function() {
      if (--times > 0) {
        memo = func.apply(this, arguments);
      }
      if (times <= 1) func = null;
      return memo;
    };
  };

  // Returns a function that will be executed at most one time, no matter how
  // often you call it. Useful for lazy initialization.
  _.once = _.partial(_.before, 2);

  _.restArguments = restArguments;

  // Object Functions
  // ----------------

  // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
  var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
  var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
    'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];

  var collectNonEnumProps = function(obj, keys) {
    var nonEnumIdx = nonEnumerableProps.length;
    var constructor = obj.constructor;
    var proto = _.isFunction(constructor) && constructor.prototype || ObjProto;

    // Constructor is a special case.
    var prop = 'constructor';
    if (has(obj, prop) && !_.contains(keys, prop)) keys.push(prop);

    while (nonEnumIdx--) {
      prop = nonEnumerableProps[nonEnumIdx];
      if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) {
        keys.push(prop);
      }
    }
  };

  // Retrieve the names of an object's own properties.
  // Delegates to **ECMAScript 5**'s native `Object.keys`.
  _.keys = function(obj) {
    if (!_.isObject(obj)) return [];
    if (nativeKeys) return nativeKeys(obj);
    var keys = [];
    for (var key in obj) if (has(obj, key)) keys.push(key);
    // Ahem, IE < 9.
    if (hasEnumBug) collectNonEnumProps(obj, keys);
    return keys;
  };

  // Retrieve all the property names of an object.
  _.allKeys = function(obj) {
    if (!_.isObject(obj)) return [];
    var keys = [];
    for (var key in obj) keys.push(key);
    // Ahem, IE < 9.
    if (hasEnumBug) collectNonEnumProps(obj, keys);
    return keys;
  };

  // Retrieve the values of an object's properties.
  _.values = function(obj) {
    var keys = _.keys(obj);
    var length = keys.length;
    var values = Array(length);
    for (var i = 0; i < length; i++) {
      values[i] = obj[keys[i]];
    }
    return values;
  };

  // Returns the results of applying the iteratee to each element of the object.
  // In contrast to _.map it returns an object.
  _.mapObject = function(obj, iteratee, context) {
    iteratee = cb(iteratee, context);
    var keys = _.keys(obj),
        length = keys.length,
        results = {};
    for (var index = 0; index < length; index++) {
      var currentKey = keys[index];
      results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
    }
    return results;
  };

  // Convert an object into a list of `[key, value]` pairs.
  // The opposite of _.object.
  _.pairs = function(obj) {
    var keys = _.keys(obj);
    var length = keys.length;
    var pairs = Array(length);
    for (var i = 0; i < length; i++) {
      pairs[i] = [keys[i], obj[keys[i]]];
    }
    return pairs;
  };

  // Invert the keys and values of an object. The values must be serializable.
  _.invert = function(obj) {
    var result = {};
    var keys = _.keys(obj);
    for (var i = 0, length = keys.length; i < length; i++) {
      result[obj[keys[i]]] = keys[i];
    }
    return result;
  };

  // Return a sorted list of the function names available on the object.
  // Aliased as `methods`.
  _.functions = _.methods = function(obj) {
    var names = [];
    for (var key in obj) {
      if (_.isFunction(obj[key])) names.push(key);
    }
    return names.sort();
  };

  // An internal function for creating assigner functions.
  var createAssigner = function(keysFunc, defaults) {
    return function(obj) {
      var length = arguments.length;
      if (defaults) obj = Object(obj);
      if (length < 2 || obj == null) return obj;
      for (var index = 1; index < length; index++) {
        var source = arguments[index],
            keys = keysFunc(source),
            l = keys.length;
        for (var i = 0; i < l; i++) {
          var key = keys[i];
          if (!defaults || obj[key] === void 0) obj[key] = source[key];
        }
      }
      return obj;
    };
  };

  // Extend a given object with all the properties in passed-in object(s).
  _.extend = createAssigner(_.allKeys);

  // Assigns a given object with all the own properties in the passed-in object(s).
  // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
  _.extendOwn = _.assign = createAssigner(_.keys);

  // Returns the first key on an object that passes a predicate test.
  _.findKey = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = _.keys(obj), key;
    for (var i = 0, length = keys.length; i < length; i++) {
      key = keys[i];
      if (predicate(obj[key], key, obj)) return key;
    }
  };

  // Internal pick helper function to determine if `obj` has key `key`.
  var keyInObj = function(value, key, obj) {
    return key in obj;
  };

  // Return a copy of the object only containing the whitelisted properties.
  _.pick = restArguments(function(obj, keys) {
    var result = {}, iteratee = keys[0];
    if (obj == null) return result;
    if (_.isFunction(iteratee)) {
      if (keys.length > 1) iteratee = optimizeCb(iteratee, keys[1]);
      keys = _.allKeys(obj);
    } else {
      iteratee = keyInObj;
      keys = flatten(keys, false, false);
      obj = Object(obj);
    }
    for (var i = 0, length = keys.length; i < length; i++) {
      var key = keys[i];
      var value = obj[key];
      if (iteratee(value, key, obj)) result[key] = value;
    }
    return result;
  });

  // Return a copy of the object without the blacklisted properties.
  _.omit = restArguments(function(obj, keys) {
    var iteratee = keys[0], context;
    if (_.isFunction(iteratee)) {
      iteratee = _.negate(iteratee);
      if (keys.length > 1) context = keys[1];
    } else {
      keys = _.map(flatten(keys, false, false), String);
      iteratee = function(value, key) {
        return !_.contains(keys, key);
      };
    }
    return _.pick(obj, iteratee, context);
  });

  // Fill in a given object with default properties.
  _.defaults = createAssigner(_.allKeys, true);

  // Creates an object that inherits from the given prototype object.
  // If additional properties are provided then they will be added to the
  // created object.
  _.create = function(prototype, props) {
    var result = baseCreate(prototype);
    if (props) _.extendOwn(result, props);
    return result;
  };

  // Create a (shallow-cloned) duplicate of an object.
  _.clone = function(obj) {
    if (!_.isObject(obj)) return obj;
    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
  };

  // Invokes interceptor with the obj, and then returns obj.
  // The primary purpose of this method is to "tap into" a method chain, in
  // order to perform operations on intermediate results within the chain.
  _.tap = function(obj, interceptor) {
    interceptor(obj);
    return obj;
  };

  // Returns whether an object has a given set of `key:value` pairs.
  _.isMatch = function(object, attrs) {
    var keys = _.keys(attrs), length = keys.length;
    if (object == null) return !length;
    var obj = Object(object);
    for (var i = 0; i < length; i++) {
      var key = keys[i];
      if (attrs[key] !== obj[key] || !(key in obj)) return false;
    }
    return true;
  };


  // Internal recursive comparison function for `isEqual`.
  var eq, deepEq;
  eq = function(a, b, aStack, bStack) {
    // Identical objects are equal. `0 === -0`, but they aren't identical.
    // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
    if (a === b) return a !== 0 || 1 / a === 1 / b;
    // `null` or `undefined` only equal to itself (strict comparison).
    if (a == null || b == null) return false;
    // `NaN`s are equivalent, but non-reflexive.
    if (a !== a) return b !== b;
    // Exhaust primitive checks
    var type = typeof a;
    if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;
    return deepEq(a, b, aStack, bStack);
  };

  // Internal recursive comparison function for `isEqual`.
  deepEq = function(a, b, aStack, bStack) {
    // Unwrap any wrapped objects.
    if (a instanceof _) a = a._wrapped;
    if (b instanceof _) b = b._wrapped;
    // Compare `[[Class]]` names.
    var className = toString.call(a);
    if (className !== toString.call(b)) return false;
    switch (className) {
      // Strings, numbers, regular expressions, dates, and booleans are compared by value.
      case '[object RegExp]':
      // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')
      case '[object String]':
        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
        // equivalent to `new String("5")`.
        return '' + a === '' + b;
      case '[object Number]':
        // `NaN`s are equivalent, but non-reflexive.
        // Object(NaN) is equivalent to NaN.
        if (+a !== +a) return +b !== +b;
        // An `egal` comparison is performed for other numeric values.
        return +a === 0 ? 1 / +a === 1 / b : +a === +b;
      case '[object Date]':
      case '[object Boolean]':
        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
        // millisecond representations. Note that invalid dates with millisecond representations
        // of `NaN` are not equivalent.
        return +a === +b;
      case '[object Symbol]':
        return SymbolProto.valueOf.call(a) === SymbolProto.valueOf.call(b);
    }

    var areArrays = className === '[object Array]';
    if (!areArrays) {
      if (typeof a != 'object' || typeof b != 'object') return false;

      // Objects with different constructors are not equivalent, but `Object`s or `Array`s
      // from different frames are.
      var aCtor = a.constructor, bCtor = b.constructor;
      if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&
                               _.isFunction(bCtor) && bCtor instanceof bCtor)
                          && ('constructor' in a && 'constructor' in b)) {
        return false;
      }
    }
    // Assume equality for cyclic structures. The algorithm for detecting cyclic
    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.

    // Initializing stack of traversed objects.
    // It's done here since we only need them for objects and arrays comparison.
    aStack = aStack || [];
    bStack = bStack || [];
    var length = aStack.length;
    while (length--) {
      // Linear search. Performance is inversely proportional to the number of
      // unique nested structures.
      if (aStack[length] === a) return bStack[length] === b;
    }

    // Add the first object to the stack of traversed objects.
    aStack.push(a);
    bStack.push(b);

    // Recursively compare objects and arrays.
    if (areArrays) {
      // Compare array lengths to determine if a deep comparison is necessary.
      length = a.length;
      if (length !== b.length) return false;
      // Deep compare the contents, ignoring non-numeric properties.
      while (length--) {
        if (!eq(a[length], b[length], aStack, bStack)) return false;
      }
    } else {
      // Deep compare objects.
      var keys = _.keys(a), key;
      length = keys.length;
      // Ensure that both objects contain the same number of properties before comparing deep equality.
      if (_.keys(b).length !== length) return false;
      while (length--) {
        // Deep compare each member
        key = keys[length];
        if (!(has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
      }
    }
    // Remove the first object from the stack of traversed objects.
    aStack.pop();
    bStack.pop();
    return true;
  };

  // Perform a deep comparison to check if two objects are equal.
  _.isEqual = function(a, b) {
    return eq(a, b);
  };

  // Is a given array, string, or object empty?
  // An "empty" object has no enumerable own-properties.
  _.isEmpty = function(obj) {
    if (obj == null) return true;
    if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
    return _.keys(obj).length === 0;
  };

  // Is a given value a DOM element?
  _.isElement = function(obj) {
    return !!(obj && obj.nodeType === 1);
  };

  // Is a given value an array?
  // Delegates to ECMA5's native Array.isArray
  _.isArray = nativeIsArray || function(obj) {
    return toString.call(obj) === '[object Array]';
  };

  // Is a given variable an object?
  _.isObject = function(obj) {
    var type = typeof obj;
    return type === 'function' || type === 'object' && !!obj;
  };

  // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError, isMap, isWeakMap, isSet, isWeakSet.
  _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error', 'Symbol', 'Map', 'WeakMap', 'Set', 'WeakSet'], function(name) {
    _['is' + name] = function(obj) {
      return toString.call(obj) === '[object ' + name + ']';
    };
  });

  // Define a fallback version of the method in browsers (ahem, IE < 9), where
  // there isn't any inspectable "Arguments" type.
  if (!_.isArguments(arguments)) {
    _.isArguments = function(obj) {
      return has(obj, 'callee');
    };
  }

  // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,
  // IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).
  var nodelist = root.document && root.document.childNodes;
  if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {
    _.isFunction = function(obj) {
      return typeof obj == 'function' || false;
    };
  }

  // Is a given object a finite number?
  _.isFinite = function(obj) {
    return !_.isSymbol(obj) && isFinite(obj) && !isNaN(parseFloat(obj));
  };

  // Is the given value `NaN`?
  _.isNaN = function(obj) {
    return _.isNumber(obj) && isNaN(obj);
  };

  // Is a given value a boolean?
  _.isBoolean = function(obj) {
    return obj === true || obj === false || toString.call(obj) === '[object Boolean]';
  };

  // Is a given value equal to null?
  _.isNull = function(obj) {
    return obj === null;
  };

  // Is a given variable undefined?
  _.isUndefined = function(obj) {
    return obj === void 0;
  };

  // Shortcut function for checking if an object has a given property directly
  // on itself (in other words, not on a prototype).
  _.has = function(obj, path) {
    if (!_.isArray(path)) {
      return has(obj, path);
    }
    var length = path.length;
    for (var i = 0; i < length; i++) {
      var key = path[i];
      if (obj == null || !hasOwnProperty.call(obj, key)) {
        return false;
      }
      obj = obj[key];
    }
    return !!length;
  };

  // Utility Functions
  // -----------------

  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
  // previous owner. Returns a reference to the Underscore object.
  _.noConflict = function() {
    root._ = previousUnderscore;
    return this;
  };

  // Keep the identity function around for default iteratees.
  _.identity = function(value) {
    return value;
  };

  // Predicate-generating functions. Often useful outside of Underscore.
  _.constant = function(value) {
    return function() {
      return value;
    };
  };

  _.noop = function(){};

  // Creates a function that, when passed an object, will traverse that object’s
  // properties down the given `path`, specified as an array of keys or indexes.
  _.property = function(path) {
    if (!_.isArray(path)) {
      return shallowProperty(path);
    }
    return function(obj) {
      return deepGet(obj, path);
    };
  };

  // Generates a function for a given object that returns a given property.
  _.propertyOf = function(obj) {
    if (obj == null) {
      return function(){};
    }
    return function(path) {
      return !_.isArray(path) ? obj[path] : deepGet(obj, path);
    };
  };

  // Returns a predicate for checking whether an object has a given set of
  // `key:value` pairs.
  _.matcher = _.matches = function(attrs) {
    attrs = _.extendOwn({}, attrs);
    return function(obj) {
      return _.isMatch(obj, attrs);
    };
  };

  // Run a function **n** times.
  _.times = function(n, iteratee, context) {
    var accum = Array(Math.max(0, n));
    iteratee = optimizeCb(iteratee, context, 1);
    for (var i = 0; i < n; i++) accum[i] = iteratee(i);
    return accum;
  };

  // Return a random integer between min and max (inclusive).
  _.random = function(min, max) {
    if (max == null) {
      max = min;
      min = 0;
    }
    return min + Math.floor(Math.random() * (max - min + 1));
  };

  // A (possibly faster) way to get the current timestamp as an integer.
  _.now = Date.now || function() {
    return new Date().getTime();
  };

  // List of HTML entities for escaping.
  var escapeMap = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#x27;',
    '`': '&#x60;'
  };
  var unescapeMap = _.invert(escapeMap);

  // Functions for escaping and unescaping strings to/from HTML interpolation.
  var createEscaper = function(map) {
    var escaper = function(match) {
      return map[match];
    };
    // Regexes for identifying a key that needs to be escaped.
    var source = '(?:' + _.keys(map).join('|') + ')';
    var testRegexp = RegExp(source);
    var replaceRegexp = RegExp(source, 'g');
    return function(string) {
      string = string == null ? '' : '' + string;
      return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
    };
  };
  _.escape = createEscaper(escapeMap);
  _.unescape = createEscaper(unescapeMap);

  // Traverses the children of `obj` along `path`. If a child is a function, it
  // is invoked with its parent as context. Returns the value of the final
  // child, or `fallback` if any child is undefined.
  _.result = function(obj, path, fallback) {
    if (!_.isArray(path)) path = [path];
    var length = path.length;
    if (!length) {
      return _.isFunction(fallback) ? fallback.call(obj) : fallback;
    }
    for (var i = 0; i < length; i++) {
      var prop = obj == null ? void 0 : obj[path[i]];
      if (prop === void 0) {
        prop = fallback;
        i = length; // Ensure we don't continue iterating.
      }
      obj = _.isFunction(prop) ? prop.call(obj) : prop;
    }
    return obj;
  };

  // Generate a unique integer id (unique within the entire client session).
  // Useful for temporary DOM ids.
  var idCounter = 0;
  _.uniqueId = function(prefix) {
    var id = ++idCounter + '';
    return prefix ? prefix + id : id;
  };

  // By default, Underscore uses ERB-style template delimiters, change the
  // following template settings to use alternative delimiters.
  _.templateSettings = {
    evaluate: /<%([\s\S]+?)%>/g,
    interpolate: /<%=([\s\S]+?)%>/g,
    escape: /<%-([\s\S]+?)%>/g
  };

  // When customizing `templateSettings`, if you don't want to define an
  // interpolation, evaluation or escaping regex, we need one that is
  // guaranteed not to match.
  var noMatch = /(.)^/;

  // Certain characters need to be escaped so that they can be put into a
  // string literal.
  var escapes = {
    "'": "'",
    '\\': '\\',
    '\r': 'r',
    '\n': 'n',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  var escapeRegExp = /\\|'|\r|\n|\u2028|\u2029/g;

  var escapeChar = function(match) {
    return '\\' + escapes[match];
  };

  // JavaScript micro-templating, similar to John Resig's implementation.
  // Underscore templating handles arbitrary delimiters, preserves whitespace,
  // and correctly escapes quotes within interpolated code.
  // NB: `oldSettings` only exists for backwards compatibility.
  _.template = function(text, settings, oldSettings) {
    if (!settings && oldSettings) settings = oldSettings;
    settings = _.defaults({}, settings, _.templateSettings);

    // Combine delimiters into one regular expression via alternation.
    var matcher = RegExp([
      (settings.escape || noMatch).source,
      (settings.interpolate || noMatch).source,
      (settings.evaluate || noMatch).source
    ].join('|') + '|$', 'g');

    // Compile the template source, escaping string literals appropriately.
    var index = 0;
    var source = "__p+='";
    text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
      source += text.slice(index, offset).replace(escapeRegExp, escapeChar);
      index = offset + match.length;

      if (escape) {
        source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
      } else if (interpolate) {
        source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
      } else if (evaluate) {
        source += "';\n" + evaluate + "\n__p+='";
      }

      // Adobe VMs need the match returned to produce the correct offset.
      return match;
    });
    source += "';\n";

    // If a variable is not specified, place data values in local scope.
    if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';

    source = "var __t,__p='',__j=Array.prototype.join," +
      "print=function(){__p+=__j.call(arguments,'');};\n" +
      source + 'return __p;\n';

    var render;
    try {
      render = new Function(settings.variable || 'obj', '_', source);
    } catch (e) {
      e.source = source;
      throw e;
    }

    var template = function(data) {
      return render.call(this, data, _);
    };

    // Provide the compiled source as a convenience for precompilation.
    var argument = settings.variable || 'obj';
    template.source = 'function(' + argument + '){\n' + source + '}';

    return template;
  };

  // Add a "chain" function. Start chaining a wrapped Underscore object.
  _.chain = function(obj) {
    var instance = _(obj);
    instance._chain = true;
    return instance;
  };

  // OOP
  // ---------------
  // If Underscore is called as a function, it returns a wrapped object that
  // can be used OO-style. This wrapper holds altered versions of all the
  // underscore functions. Wrapped objects may be chained.

  // Helper function to continue chaining intermediate results.
  var chainResult = function(instance, obj) {
    return instance._chain ? _(obj).chain() : obj;
  };

  // Add your own custom functions to the Underscore object.
  _.mixin = function(obj) {
    _.each(_.functions(obj), function(name) {
      var func = _[name] = obj[name];
      _.prototype[name] = function() {
        var args = [this._wrapped];
        push.apply(args, arguments);
        return chainResult(this, func.apply(_, args));
      };
    });
    return _;
  };

  // Add all of the Underscore functions to the wrapper object.
  _.mixin(_);

  // Add all mutator Array functions to the wrapper.
  _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
    var method = ArrayProto[name];
    _.prototype[name] = function() {
      var obj = this._wrapped;
      method.apply(obj, arguments);
      if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];
      return chainResult(this, obj);
    };
  });

  // Add all accessor Array functions to the wrapper.
  _.each(['concat', 'join', 'slice'], function(name) {
    var method = ArrayProto[name];
    _.prototype[name] = function() {
      return chainResult(this, method.apply(this._wrapped, arguments));
    };
  });

  // Extracts the result from a wrapped and chained object.
  _.prototype.value = function() {
    return this._wrapped;
  };

  // Provide unwrapping proxy for some methods used in engine operations
  // such as arithmetic and JSON stringification.
  _.prototype.valueOf = _.prototype.toJSON = _.prototype.value;

  _.prototype.toString = function() {
    return String(this._wrapped);
  };

  // AMD registration happens at the end for compatibility with AMD loaders
  // that may not enforce next-turn semantics on modules. Even though general
  // practice for AMD registration is to be anonymous, underscore registers
  // as a named module because, like jQuery, it is a base library that is
  // popular enough to be bundled in a third party lib, but not be part of
  // an AMD load request. Those cases could generate an error when an
  // anonymous define() is called outside of a loader request.
  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function() {
      return _;
    }).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  }
}());

/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5), __webpack_require__(7)(module)))

/***/ }),

/***/ 20:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _i18next = __webpack_require__(23);

var _i18next2 = _interopRequireDefault(_i18next);

var _i18nextXhrBackend = __webpack_require__(33);

var _i18nextXhrBackend2 = _interopRequireDefault(_i18nextXhrBackend);

var _jquery = __webpack_require__(0);

var _jquery2 = _interopRequireDefault(_jquery);

var _rx = __webpack_require__(8);

var Rx = _interopRequireWildcard(_rx);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var instance = null;

var LocaleService = function () {
    function LocaleService(options) {
        _classCallCheck(this, LocaleService);

        if (!options) {
            options = {};
        }

        // can be instanciated only once
        if (!instance) {
            instance = this;
        }

        if (options.locale === undefined) {
            options.locale = (0, _jquery2.default)('html').attr('lang') || 'fr';
        }
        this.locale = options.locale;
        this.isCached = false;
        this.cachedTranslations = {};
        this.configService = options.configService;
        this.path = this.configService.get('translations');
        return instance;
    }

    _createClass(LocaleService, [{
        key: 't',
        value: function t(key) {
            if (this.isCached && this.translate !== undefined) {
                return this.translate(key);
            } else {
                throw new Error('locale not loaded');
            }
        }
    }, {
        key: 'getLocale',
        value: function getLocale() {
            return this.locale;
        }
    }, {
        key: 'getTranslations',
        value: function getTranslations() {
            return this.cachedTranslations;
        }
    }, {
        key: 'fetchTranslations',
        value: function fetchTranslations(data) {
            var _this = this;

            data = data || {};
            var i18nPromise = _jquery2.default.Deferred();
            _i18next2.default.use(_i18nextXhrBackend2.default).init({
                lng: this.locale,
                backend: {
                    loadPath: this.path

                }
            }, function (err, t) {
                _this.isCached = true;
                _this.translate = t;
                _this.cachedTranslations = _i18next2.default.getResourceBundle(_this.locale);
                i18nPromise.resolve(instance);
                if (data.callback !== undefined) {
                    data.callback();
                }
                //resolve(this.i18n);
            });
            // });
            this.i18n = i18nPromise.promise();
            this.stream = Rx.Observable.fromPromise(this.i18n);
            return this.i18n;
        }
    }]);

    return LocaleService;
}();

exports.default = LocaleService;

/***/ }),

/***/ 21:
/***/ (function(module, exports) {

// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };


/***/ }),

/***/ 23:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "changeLanguage", function() { return changeLanguage; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "cloneInstance", function() { return cloneInstance; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "createInstance", function() { return createInstance; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dir", function() { return dir; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exists", function() { return exists; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getFixedT", function() { return getFixedT; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "init", function() { return init; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "loadLanguages", function() { return loadLanguages; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "loadNamespaces", function() { return loadNamespaces; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "loadResources", function() { return loadResources; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "off", function() { return off; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "on", function() { return on; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setDefaultNamespace", function() { return setDefaultNamespace; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "t", function() { return t; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "use", function() { return use; });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__i18next__ = __webpack_require__(24);


/* harmony default export */ __webpack_exports__["default"] = (__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);

var changeLanguage = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].changeLanguage.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var cloneInstance = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].cloneInstance.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var createInstance = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].createInstance.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var dir = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].dir.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var exists = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].exists.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var getFixedT = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].getFixedT.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var init = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].init.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var loadLanguages = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].loadLanguages.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var loadNamespaces = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].loadNamespaces.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var loadResources = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].loadResources.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var off = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].off.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var on = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].on.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var setDefaultNamespace = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].setDefaultNamespace.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var t = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].t.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);
var use = __WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */].use.bind(__WEBPACK_IMPORTED_MODULE_0__i18next__["a" /* default */]);

/***/ }),

/***/ 24:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__EventEmitter__ = __webpack_require__(6);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__ResourceStore__ = __webpack_require__(25);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__Translator__ = __webpack_require__(26);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__LanguageUtils__ = __webpack_require__(27);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__PluralResolver__ = __webpack_require__(28);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__Interpolator__ = __webpack_require__(29);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_7__BackendConnector__ = __webpack_require__(30);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_8__CacheConnector__ = __webpack_require__(31);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_9__defaults__ = __webpack_require__(32);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_10__postProcessor__ = __webpack_require__(12);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_11__compatibility_v1__ = __webpack_require__(13);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }















function noop() {}

var I18n = function (_EventEmitter) {
  _inherits(I18n, _EventEmitter);

  function I18n() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var callback = arguments[1];

    _classCallCheck(this, I18n);

    var _this = _possibleConstructorReturn(this, _EventEmitter.call(this));

    _this.options = Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["b" /* transformOptions */])(options);
    _this.services = {};
    _this.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */];
    _this.modules = { external: [] };

    if (callback && !_this.isInitialized && !options.isClone) {
      var _ret;

      // https://github.com/i18next/i18next/issues/879
      if (!_this.options.initImmediate) return _ret = _this.init(options, callback), _possibleConstructorReturn(_this, _ret);
      setTimeout(function () {
        _this.init(options, callback);
      }, 0);
    }
    return _this;
  }

  I18n.prototype.init = function init(options, callback) {
    var _this2 = this;

    if (typeof options === 'function') {
      callback = options;
      options = {};
    }
    if (!options) options = {};

    if (options.compatibilityAPI === 'v1') {
      this.options = _extends({}, Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["a" /* get */])(), Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["b" /* transformOptions */])(__WEBPACK_IMPORTED_MODULE_11__compatibility_v1__["b" /* convertAPIOptions */](options)), {});
    } else if (options.compatibilityJSON === 'v1') {
      this.options = _extends({}, Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["a" /* get */])(), Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["b" /* transformOptions */])(__WEBPACK_IMPORTED_MODULE_11__compatibility_v1__["c" /* convertJSONOptions */](options)), {});
    } else {
      this.options = _extends({}, Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["a" /* get */])(), this.options, Object(__WEBPACK_IMPORTED_MODULE_9__defaults__["b" /* transformOptions */])(options));
    }
    this.format = this.options.interpolation.format;
    if (!callback) callback = noop;

    function createClassOnDemand(ClassOrObject) {
      if (!ClassOrObject) return null;
      if (typeof ClassOrObject === 'function') return new ClassOrObject();
      return ClassOrObject;
    }

    // init services
    if (!this.options.isClone) {
      if (this.modules.logger) {
        __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].init(createClassOnDemand(this.modules.logger), this.options);
      } else {
        __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].init(null, this.options);
      }

      var lu = new __WEBPACK_IMPORTED_MODULE_4__LanguageUtils__["a" /* default */](this.options);
      this.store = new __WEBPACK_IMPORTED_MODULE_2__ResourceStore__["a" /* default */](this.options.resources, this.options);

      var s = this.services;
      s.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */];
      s.resourceStore = this.store;
      s.resourceStore.on('added removed', function (lng, ns) {
        s.cacheConnector.save();
      });
      s.languageUtils = lu;
      s.pluralResolver = new __WEBPACK_IMPORTED_MODULE_5__PluralResolver__["a" /* default */](lu, { prepend: this.options.pluralSeparator, compatibilityJSON: this.options.compatibilityJSON, simplifyPluralSuffix: this.options.simplifyPluralSuffix });
      s.interpolator = new __WEBPACK_IMPORTED_MODULE_6__Interpolator__["a" /* default */](this.options);

      s.backendConnector = new __WEBPACK_IMPORTED_MODULE_7__BackendConnector__["a" /* default */](createClassOnDemand(this.modules.backend), s.resourceStore, s, this.options);
      // pipe events from backendConnector
      s.backendConnector.on('*', function (event) {
        for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        _this2.emit.apply(_this2, [event].concat(args));
      });

      s.backendConnector.on('loaded', function (loaded) {
        s.cacheConnector.save();
      });

      s.cacheConnector = new __WEBPACK_IMPORTED_MODULE_8__CacheConnector__["a" /* default */](createClassOnDemand(this.modules.cache), s.resourceStore, s, this.options);
      // pipe events from backendConnector
      s.cacheConnector.on('*', function (event) {
        for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }

        _this2.emit.apply(_this2, [event].concat(args));
      });

      if (this.modules.languageDetector) {
        s.languageDetector = createClassOnDemand(this.modules.languageDetector);
        s.languageDetector.init(s, this.options.detection, this.options);
      }

      this.translator = new __WEBPACK_IMPORTED_MODULE_3__Translator__["a" /* default */](this.services, this.options);
      // pipe events from translator
      this.translator.on('*', function (event) {
        for (var _len3 = arguments.length, args = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
          args[_key3 - 1] = arguments[_key3];
        }

        _this2.emit.apply(_this2, [event].concat(args));
      });

      this.modules.external.forEach(function (m) {
        if (m.init) m.init(_this2);
      });
    }

    // append api
    var storeApi = ['getResource', 'addResource', 'addResources', 'addResourceBundle', 'removeResourceBundle', 'hasResourceBundle', 'getResourceBundle'];
    storeApi.forEach(function (fcName) {
      _this2[fcName] = function () {
        var _store;

        return (_store = _this2.store)[fcName].apply(_store, arguments);
      };
    });

    // COMPATIBILITY: remove this
    if (this.options.compatibilityAPI === 'v1') __WEBPACK_IMPORTED_MODULE_11__compatibility_v1__["a" /* appendBackwardsAPI */](this);

    var load = function load() {
      _this2.changeLanguage(_this2.options.lng, function (err, t) {
        _this2.isInitialized = true;
        _this2.logger.log('initialized', _this2.options);
        _this2.emit('initialized', _this2.options);

        callback(err, t);
      });
    };

    if (this.options.resources || !this.options.initImmediate) {
      load();
    } else {
      setTimeout(load, 0);
    }

    return this;
  };

  /* eslint consistent-return: 0 */


  I18n.prototype.loadResources = function loadResources() {
    var _this3 = this;

    var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : noop;

    if (!this.options.resources) {
      if (this.language && this.language.toLowerCase() === 'cimode') return callback(); // avoid loading resources for cimode

      var toLoad = [];

      var append = function append(lng) {
        if (!lng) return;
        var lngs = _this3.services.languageUtils.toResolveHierarchy(lng);
        lngs.forEach(function (l) {
          if (toLoad.indexOf(l) < 0) toLoad.push(l);
        });
      };

      if (!this.language) {
        // at least load fallbacks in this case
        var fallbacks = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);
        fallbacks.forEach(function (l) {
          return append(l);
        });
      } else {
        append(this.language);
      }

      if (this.options.preload) {
        this.options.preload.forEach(function (l) {
          return append(l);
        });
      }

      this.services.cacheConnector.load(toLoad, this.options.ns, function () {
        _this3.services.backendConnector.load(toLoad, _this3.options.ns, callback);
      });
    } else {
      callback(null);
    }
  };

  I18n.prototype.reloadResources = function reloadResources(lngs, ns) {
    if (!lngs) lngs = this.languages;
    if (!ns) ns = this.options.ns;
    this.services.backendConnector.reload(lngs, ns);
  };

  I18n.prototype.use = function use(module) {
    if (module.type === 'backend') {
      this.modules.backend = module;
    }

    if (module.type === 'cache') {
      this.modules.cache = module;
    }

    if (module.type === 'logger' || module.log && module.warn && module.error) {
      this.modules.logger = module;
    }

    if (module.type === 'languageDetector') {
      this.modules.languageDetector = module;
    }

    if (module.type === 'postProcessor') {
      __WEBPACK_IMPORTED_MODULE_10__postProcessor__["a" /* default */].addPostProcessor(module);
    }

    if (module.type === '3rdParty') {
      this.modules.external.push(module);
    }

    return this;
  };

  I18n.prototype.changeLanguage = function changeLanguage(lng, callback) {
    var _this4 = this;

    var done = function done(err, l) {
      if (l) {
        _this4.emit('languageChanged', l);
        _this4.logger.log('languageChanged', l);
      }

      if (callback) callback(err, function () {
        return _this4.t.apply(_this4, arguments);
      });
    };

    var setLng = function setLng(l) {
      if (l) {
        _this4.language = l;
        _this4.languages = _this4.services.languageUtils.toResolveHierarchy(l);

        _this4.translator.changeLanguage(l);

        if (_this4.services.languageDetector) _this4.services.languageDetector.cacheUserLanguage(l);
      }

      _this4.loadResources(function (err) {
        done(err, l);
      });
    };

    if (!lng && this.services.languageDetector && !this.services.languageDetector.async) {
      setLng(this.services.languageDetector.detect());
    } else if (!lng && this.services.languageDetector && this.services.languageDetector.async) {
      this.services.languageDetector.detect(setLng);
    } else {
      setLng(lng);
    }
  };

  I18n.prototype.getFixedT = function getFixedT(lng, ns) {
    var _this5 = this;

    var fixedT = function fixedT(key) {
      var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      var options = _extends({}, opts);
      options.lng = options.lng || fixedT.lng;
      options.lngs = options.lngs || fixedT.lngs;
      options.ns = options.ns || fixedT.ns;
      return _this5.t(key, options);
    };
    if (typeof lng === 'string') {
      fixedT.lng = lng;
    } else {
      fixedT.lngs = lng;
    }
    fixedT.ns = ns;
    return fixedT;
  };

  I18n.prototype.t = function t() {
    var _translator;

    return this.translator && (_translator = this.translator).translate.apply(_translator, arguments);
  };

  I18n.prototype.exists = function exists() {
    var _translator2;

    return this.translator && (_translator2 = this.translator).exists.apply(_translator2, arguments);
  };

  I18n.prototype.setDefaultNamespace = function setDefaultNamespace(ns) {
    this.options.defaultNS = ns;
  };

  I18n.prototype.loadNamespaces = function loadNamespaces(ns, callback) {
    var _this6 = this;

    if (!this.options.ns) return callback && callback();
    if (typeof ns === 'string') ns = [ns];

    ns.forEach(function (n) {
      if (_this6.options.ns.indexOf(n) < 0) _this6.options.ns.push(n);
    });

    this.loadResources(callback);
  };

  I18n.prototype.loadLanguages = function loadLanguages(lngs, callback) {
    if (typeof lngs === 'string') lngs = [lngs];
    var preloaded = this.options.preload || [];

    var newLngs = lngs.filter(function (lng) {
      return preloaded.indexOf(lng) < 0;
    });
    // Exit early if all given languages are already preloaded
    if (!newLngs.length) return callback();

    this.options.preload = preloaded.concat(newLngs);
    this.loadResources(callback);
  };

  I18n.prototype.dir = function dir(lng) {
    if (!lng) lng = this.languages && this.languages.length > 0 ? this.languages[0] : this.language;
    if (!lng) return 'rtl';

    var rtlLngs = ['ar', 'shu', 'sqr', 'ssh', 'xaa', 'yhd', 'yud', 'aao', 'abh', 'abv', 'acm', 'acq', 'acw', 'acx', 'acy', 'adf', 'ads', 'aeb', 'aec', 'afb', 'ajp', 'apc', 'apd', 'arb', 'arq', 'ars', 'ary', 'arz', 'auz', 'avl', 'ayh', 'ayl', 'ayn', 'ayp', 'bbz', 'pga', 'he', 'iw', 'ps', 'pbt', 'pbu', 'pst', 'prp', 'prd', 'ur', 'ydd', 'yds', 'yih', 'ji', 'yi', 'hbo', 'men', 'xmn', 'fa', 'jpr', 'peo', 'pes', 'prs', 'dv', 'sam'];

    return rtlLngs.indexOf(this.services.languageUtils.getLanguagePartFromCode(lng)) >= 0 ? 'rtl' : 'ltr';
  };

  /* eslint class-methods-use-this: 0 */


  I18n.prototype.createInstance = function createInstance() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var callback = arguments[1];

    return new I18n(options, callback);
  };

  I18n.prototype.cloneInstance = function cloneInstance() {
    var _this7 = this;

    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : noop;

    var mergedOptions = _extends({}, this.options, options, { isClone: true });
    var clone = new I18n(mergedOptions, callback);
    var membersToCopy = ['store', 'services', 'language'];
    membersToCopy.forEach(function (m) {
      clone[m] = _this7[m];
    });
    clone.translator = new __WEBPACK_IMPORTED_MODULE_3__Translator__["a" /* default */](clone.services, clone.options);
    clone.translator.on('*', function (event) {
      for (var _len4 = arguments.length, args = Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
        args[_key4 - 1] = arguments[_key4];
      }

      clone.emit.apply(clone, [event].concat(args));
    });
    clone.init(mergedOptions, callback);

    return clone;
  };

  return I18n;
}(__WEBPACK_IMPORTED_MODULE_1__EventEmitter__["a" /* default */]);

/* harmony default export */ __webpack_exports__["a"] = (new I18n());

/***/ }),

/***/ 25:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__EventEmitter__ = __webpack_require__(6);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__utils__ = __webpack_require__(10);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }




var ResourceStore = function (_EventEmitter) {
  _inherits(ResourceStore, _EventEmitter);

  function ResourceStore() {
    var data = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { ns: ['translation'], defaultNS: 'translation' };

    _classCallCheck(this, ResourceStore);

    var _this = _possibleConstructorReturn(this, _EventEmitter.call(this));

    _this.data = data;
    _this.options = options;
    return _this;
  }

  ResourceStore.prototype.addNamespaces = function addNamespaces(ns) {
    if (this.options.ns.indexOf(ns) < 0) {
      this.options.ns.push(ns);
    }
  };

  ResourceStore.prototype.removeNamespaces = function removeNamespaces(ns) {
    var index = this.options.ns.indexOf(ns);
    if (index > -1) {
      this.options.ns.splice(index, 1);
    }
  };

  ResourceStore.prototype.getResource = function getResource(lng, ns, key) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    var keySeparator = options.keySeparator || this.options.keySeparator;
    if (keySeparator === undefined) keySeparator = '.';

    var path = [lng, ns];
    if (key && typeof key !== 'string') path = path.concat(key);
    if (key && typeof key === 'string') path = path.concat(keySeparator ? key.split(keySeparator) : key);

    if (lng.indexOf('.') > -1) {
      path = lng.split('.');
    }

    return __WEBPACK_IMPORTED_MODULE_1__utils__["d" /* getPath */](this.data, path);
  };

  ResourceStore.prototype.addResource = function addResource(lng, ns, key, value) {
    var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : { silent: false };

    var keySeparator = this.options.keySeparator;
    if (keySeparator === undefined) keySeparator = '.';

    var path = [lng, ns];
    if (key) path = path.concat(keySeparator ? key.split(keySeparator) : key);

    if (lng.indexOf('.') > -1) {
      path = lng.split('.');
      value = ns;
      ns = path[1];
    }

    this.addNamespaces(ns);

    __WEBPACK_IMPORTED_MODULE_1__utils__["h" /* setPath */](this.data, path, value);

    if (!options.silent) this.emit('added', lng, ns, key, value);
  };

  ResourceStore.prototype.addResources = function addResources(lng, ns, resources) {
    /* eslint no-restricted-syntax: 0 */
    for (var m in resources) {
      if (typeof resources[m] === 'string') this.addResource(lng, ns, m, resources[m], { silent: true });
    }
    this.emit('added', lng, ns, resources);
  };

  ResourceStore.prototype.addResourceBundle = function addResourceBundle(lng, ns, resources, deep, overwrite) {
    var path = [lng, ns];
    if (lng.indexOf('.') > -1) {
      path = lng.split('.');
      deep = resources;
      resources = ns;
      ns = path[1];
    }

    this.addNamespaces(ns);

    var pack = __WEBPACK_IMPORTED_MODULE_1__utils__["d" /* getPath */](this.data, path) || {};

    if (deep) {
      __WEBPACK_IMPORTED_MODULE_1__utils__["b" /* deepExtend */](pack, resources, overwrite);
    } else {
      pack = _extends({}, pack, resources);
    }

    __WEBPACK_IMPORTED_MODULE_1__utils__["h" /* setPath */](this.data, path, pack);

    this.emit('added', lng, ns, resources);
  };

  ResourceStore.prototype.removeResourceBundle = function removeResourceBundle(lng, ns) {
    if (this.hasResourceBundle(lng, ns)) {
      delete this.data[lng][ns];
    }
    this.removeNamespaces(ns);

    this.emit('removed', lng, ns);
  };

  ResourceStore.prototype.hasResourceBundle = function hasResourceBundle(lng, ns) {
    return this.getResource(lng, ns) !== undefined;
  };

  ResourceStore.prototype.getResourceBundle = function getResourceBundle(lng, ns) {
    if (!ns) ns = this.options.defaultNS;

    // COMPATIBILITY: remove extend in v2.1.0
    if (this.options.compatibilityAPI === 'v1') return _extends({}, this.getResource(lng, ns));

    return this.getResource(lng, ns);
  };

  ResourceStore.prototype.toJSON = function toJSON() {
    return this.data;
  };

  return ResourceStore;
}(__WEBPACK_IMPORTED_MODULE_0__EventEmitter__["a" /* default */]);

/* harmony default export */ __webpack_exports__["a"] = (ResourceStore);

/***/ }),

/***/ 26:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__EventEmitter__ = __webpack_require__(6);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__postProcessor__ = __webpack_require__(12);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__compatibility_v1__ = __webpack_require__(13);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__utils__ = __webpack_require__(10);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }







var Translator = function (_EventEmitter) {
  _inherits(Translator, _EventEmitter);

  function Translator(services) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Translator);

    var _this = _possibleConstructorReturn(this, _EventEmitter.call(this));

    __WEBPACK_IMPORTED_MODULE_4__utils__["a" /* copy */](['resourceStore', 'languageUtils', 'pluralResolver', 'interpolator', 'backendConnector'], services, _this);

    _this.options = options;
    _this.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].create('translator');
    return _this;
  }

  Translator.prototype.changeLanguage = function changeLanguage(lng) {
    if (lng) this.language = lng;
  };

  Translator.prototype.exists = function exists(key) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : { interpolation: {} };

    if (this.options.compatibilityAPI === 'v1') {
      options = __WEBPACK_IMPORTED_MODULE_3__compatibility_v1__["d" /* convertTOptions */](options);
    }

    return this.resolve(key, options) !== undefined;
  };

  Translator.prototype.extractFromKey = function extractFromKey(key, options) {
    var nsSeparator = options.nsSeparator || this.options.nsSeparator;
    if (nsSeparator === undefined) nsSeparator = ':';
    var keySeparator = options.keySeparator || this.options.keySeparator || '.';

    var namespaces = options.ns || this.options.defaultNS;
    if (nsSeparator && key.indexOf(nsSeparator) > -1) {
      var parts = key.split(nsSeparator);
      if (nsSeparator !== keySeparator || nsSeparator === keySeparator && this.options.ns.indexOf(parts[0]) > -1) namespaces = parts.shift();
      key = parts.join(keySeparator);
    }
    if (typeof namespaces === 'string') namespaces = [namespaces];

    return {
      key: key,
      namespaces: namespaces
    };
  };

  Translator.prototype.translate = function translate(keys) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if ((typeof options === 'undefined' ? 'undefined' : _typeof(options)) !== 'object') {
      /* eslint prefer-rest-params: 0 */
      options = this.options.overloadTranslationOptionHandler(arguments);
    } else if (this.options.compatibilityAPI === 'v1') {
      options = __WEBPACK_IMPORTED_MODULE_3__compatibility_v1__["d" /* convertTOptions */](options);
    }

    // non valid keys handling
    if (keys === undefined || keys === null || keys === '') return '';
    if (typeof keys === 'number') keys = String(keys);
    if (typeof keys === 'string') keys = [keys];

    // separators
    var keySeparator = options.keySeparator || this.options.keySeparator || '.';

    // get namespace(s)

    var _extractFromKey = this.extractFromKey(keys[keys.length - 1], options),
        key = _extractFromKey.key,
        namespaces = _extractFromKey.namespaces;

    var namespace = namespaces[namespaces.length - 1];

    // return key on CIMode
    var lng = options.lng || this.language;
    var appendNamespaceToCIMode = options.appendNamespaceToCIMode || this.options.appendNamespaceToCIMode;
    if (lng && lng.toLowerCase() === 'cimode') {
      if (appendNamespaceToCIMode) {
        var nsSeparator = options.nsSeparator || this.options.nsSeparator;
        return namespace + nsSeparator + key;
      }

      return key;
    }

    // resolve from store
    var res = this.resolve(keys, options);

    var resType = Object.prototype.toString.apply(res);
    var noObject = ['[object Number]', '[object Function]', '[object RegExp]'];
    var joinArrays = options.joinArrays !== undefined ? options.joinArrays : this.options.joinArrays;

    // object
    if (res && typeof res !== 'string' && noObject.indexOf(resType) < 0 && !(joinArrays && resType === '[object Array]')) {
      if (!options.returnObjects && !this.options.returnObjects) {
        this.logger.warn('accessing an object - but returnObjects options is not enabled!');
        return this.options.returnedObjectHandler ? this.options.returnedObjectHandler(key, res, options) : 'key \'' + key + ' (' + this.language + ')\' returned an object instead of string.';
      }

      // if we got a separator we loop over children - else we just return object as is
      // as having it set to false means no hierarchy so no lookup for nested values
      if (options.keySeparator || this.options.keySeparator) {
        var copy = resType === '[object Array]' ? [] : {}; // apply child translation on a copy

        /* eslint no-restricted-syntax: 0 */
        for (var m in res) {
          if (Object.prototype.hasOwnProperty.call(res, m)) {
            copy[m] = this.translate('' + key + keySeparator + m, _extends({}, options, { joinArrays: false, ns: namespaces }));
          }
        }
        res = copy;
      }
    } else if (joinArrays && resType === '[object Array]') {
      // array special treatment
      res = res.join(joinArrays);
      if (res) res = this.extendTranslation(res, key, options);
    } else {
      // string, empty or null
      var usedDefault = false;
      var usedKey = false;

      // fallback value
      if (!this.isValidLookup(res) && options.defaultValue !== undefined) {
        usedDefault = true;
        res = options.defaultValue;
      }
      if (!this.isValidLookup(res)) {
        usedKey = true;
        res = key;
      }

      // save missing
      if (usedKey || usedDefault) {
        this.logger.log('missingKey', lng, namespace, key, res);

        var lngs = [];
        var fallbackLngs = this.languageUtils.getFallbackCodes(this.options.fallbackLng, options.lng || this.language);
        if (this.options.saveMissingTo === 'fallback' && fallbackLngs && fallbackLngs[0]) {
          for (var i = 0; i < fallbackLngs.length; i++) {
            lngs.push(fallbackLngs[i]);
          }
        } else if (this.options.saveMissingTo === 'all') {
          lngs = this.languageUtils.toResolveHierarchy(options.lng || this.language);
        } else {
          lngs.push(options.lng || this.language);
        }

        if (this.options.saveMissing) {
          if (this.options.missingKeyHandler) {
            this.options.missingKeyHandler(lngs, namespace, key, res);
          } else if (this.backendConnector && this.backendConnector.saveMissing) {
            this.backendConnector.saveMissing(lngs, namespace, key, res);
          }
        }

        this.emit('missingKey', lngs, namespace, key, res);
      }

      // extend
      res = this.extendTranslation(res, key, options);

      // append namespace if still key
      if (usedKey && res === key && this.options.appendNamespaceToMissingKey) res = namespace + ':' + key;

      // parseMissingKeyHandler
      if (usedKey && this.options.parseMissingKeyHandler) res = this.options.parseMissingKeyHandler(res);
    }

    // return
    return res;
  };

  Translator.prototype.extendTranslation = function extendTranslation(res, key, options) {
    var _this2 = this;

    if (options.interpolation) this.interpolator.init(_extends({}, options, { interpolation: _extends({}, this.options.interpolation, options.interpolation) }));

    // interpolate
    var data = options.replace && typeof options.replace !== 'string' ? options.replace : options;
    if (this.options.interpolation.defaultVariables) data = _extends({}, this.options.interpolation.defaultVariables, data);
    res = this.interpolator.interpolate(res, data, options.lng || this.language);

    // nesting
    if (options.nest !== false) res = this.interpolator.nest(res, function () {
      return _this2.translate.apply(_this2, arguments);
    }, options);

    if (options.interpolation) this.interpolator.reset();

    // post process
    var postProcess = options.postProcess || this.options.postProcess;
    var postProcessorNames = typeof postProcess === 'string' ? [postProcess] : postProcess;

    if (res !== undefined && postProcessorNames && postProcessorNames.length && options.applyPostProcessor !== false) {
      res = __WEBPACK_IMPORTED_MODULE_2__postProcessor__["a" /* default */].handle(postProcessorNames, res, key, options, this);
    }

    return res;
  };

  Translator.prototype.resolve = function resolve(keys) {
    var _this3 = this;

    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var found = void 0;

    if (typeof keys === 'string') keys = [keys];

    // forEach possible key
    keys.forEach(function (k) {
      if (_this3.isValidLookup(found)) return;

      var extracted = _this3.extractFromKey(k, options);
      var key = extracted.key;
      var namespaces = extracted.namespaces;
      if (_this3.options.fallbackNS) namespaces = namespaces.concat(_this3.options.fallbackNS);

      var needsPluralHandling = options.count !== undefined && typeof options.count !== 'string';
      var needsContextHandling = options.context !== undefined && typeof options.context === 'string' && options.context !== '';

      var codes = options.lngs ? options.lngs : _this3.languageUtils.toResolveHierarchy(options.lng || _this3.language);

      namespaces.forEach(function (ns) {
        if (_this3.isValidLookup(found)) return;

        codes.forEach(function (code) {
          if (_this3.isValidLookup(found)) return;

          var finalKey = key;
          var finalKeys = [finalKey];

          var pluralSuffix = void 0;
          if (needsPluralHandling) pluralSuffix = _this3.pluralResolver.getSuffix(code, options.count);

          // fallback for plural if context not found
          if (needsPluralHandling && needsContextHandling) finalKeys.push(finalKey + pluralSuffix);

          // get key for context if needed
          if (needsContextHandling) finalKeys.push(finalKey += '' + _this3.options.contextSeparator + options.context);

          // get key for plural if needed
          if (needsPluralHandling) finalKeys.push(finalKey += pluralSuffix);

          // iterate over finalKeys starting with most specific pluralkey (-> contextkey only) -> singularkey only
          var possibleKey = void 0;
          /* eslint no-cond-assign: 0 */
          while (possibleKey = finalKeys.pop()) {
            if (!_this3.isValidLookup(found)) {
              found = _this3.getResource(code, ns, possibleKey, options);
            }
          }
        });
      });
    });

    return found;
  };

  Translator.prototype.isValidLookup = function isValidLookup(res) {
    return res !== undefined && !(!this.options.returnNull && res === null) && !(!this.options.returnEmptyString && res === '');
  };

  Translator.prototype.getResource = function getResource(code, ns, key) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    return this.resourceStore.getResource(code, ns, key, options);
  };

  return Translator;
}(__WEBPACK_IMPORTED_MODULE_1__EventEmitter__["a" /* default */]);

/* harmony default export */ __webpack_exports__["a"] = (Translator);

/***/ }),

/***/ 27:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }



function capitalize(string) {
  return string.charAt(0).toUpperCase() + string.slice(1);
}

var LanguageUtil = function () {
  function LanguageUtil(options) {
    _classCallCheck(this, LanguageUtil);

    this.options = options;

    this.whitelist = this.options.whitelist || false;
    this.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].create('languageUtils');
  }

  LanguageUtil.prototype.getScriptPartFromCode = function getScriptPartFromCode(code) {
    if (!code || code.indexOf('-') < 0) return null;

    var p = code.split('-');
    if (p.length === 2) return null;
    p.pop();
    return this.formatLanguageCode(p.join('-'));
  };

  LanguageUtil.prototype.getLanguagePartFromCode = function getLanguagePartFromCode(code) {
    if (!code || code.indexOf('-') < 0) return code;

    var p = code.split('-');
    return this.formatLanguageCode(p[0]);
  };

  LanguageUtil.prototype.formatLanguageCode = function formatLanguageCode(code) {
    // http://www.iana.org/assignments/language-tags/language-tags.xhtml
    if (typeof code === 'string' && code.indexOf('-') > -1) {
      var specialCases = ['hans', 'hant', 'latn', 'cyrl', 'cans', 'mong', 'arab'];
      var p = code.split('-');

      if (this.options.lowerCaseLng) {
        p = p.map(function (part) {
          return part.toLowerCase();
        });
      } else if (p.length === 2) {
        p[0] = p[0].toLowerCase();
        p[1] = p[1].toUpperCase();

        if (specialCases.indexOf(p[1].toLowerCase()) > -1) p[1] = capitalize(p[1].toLowerCase());
      } else if (p.length === 3) {
        p[0] = p[0].toLowerCase();

        // if lenght 2 guess it's a country
        if (p[1].length === 2) p[1] = p[1].toUpperCase();
        if (p[0] !== 'sgn' && p[2].length === 2) p[2] = p[2].toUpperCase();

        if (specialCases.indexOf(p[1].toLowerCase()) > -1) p[1] = capitalize(p[1].toLowerCase());
        if (specialCases.indexOf(p[2].toLowerCase()) > -1) p[2] = capitalize(p[2].toLowerCase());
      }

      return p.join('-');
    }

    return this.options.cleanCode || this.options.lowerCaseLng ? code.toLowerCase() : code;
  };

  LanguageUtil.prototype.isWhitelisted = function isWhitelisted(code) {
    if (this.options.load === 'languageOnly' || this.options.nonExplicitWhitelist) {
      code = this.getLanguagePartFromCode(code);
    }
    return !this.whitelist || !this.whitelist.length || this.whitelist.indexOf(code) > -1;
  };

  LanguageUtil.prototype.getFallbackCodes = function getFallbackCodes(fallbacks, code) {
    if (!fallbacks) return [];
    if (typeof fallbacks === 'string') fallbacks = [fallbacks];
    if (Object.prototype.toString.apply(fallbacks) === '[object Array]') return fallbacks;

    if (!code) return fallbacks.default || [];

    // asume we have an object defining fallbacks
    var found = fallbacks[code];
    if (!found) found = fallbacks[this.getScriptPartFromCode(code)];
    if (!found) found = fallbacks[this.formatLanguageCode(code)];
    if (!found) found = fallbacks.default;

    return found || [];
  };

  LanguageUtil.prototype.toResolveHierarchy = function toResolveHierarchy(code, fallbackCode) {
    var _this = this;

    var fallbackCodes = this.getFallbackCodes(fallbackCode || this.options.fallbackLng || [], code);

    var codes = [];
    var addCode = function addCode(c) {
      if (!c) return;
      if (_this.isWhitelisted(c)) {
        codes.push(c);
      } else {
        _this.logger.warn('rejecting non-whitelisted language code: ' + c);
      }
    };

    if (typeof code === 'string' && code.indexOf('-') > -1) {
      if (this.options.load !== 'languageOnly') addCode(this.formatLanguageCode(code));
      if (this.options.load !== 'languageOnly' && this.options.load !== 'currentOnly') addCode(this.getScriptPartFromCode(code));
      if (this.options.load !== 'currentOnly') addCode(this.getLanguagePartFromCode(code));
    } else if (typeof code === 'string') {
      addCode(this.formatLanguageCode(code));
    }

    fallbackCodes.forEach(function (fc) {
      if (codes.indexOf(fc) < 0) addCode(_this.formatLanguageCode(fc));
    });

    return codes;
  };

  return LanguageUtil;
}();

/* harmony default export */ __webpack_exports__["a"] = (LanguageUtil);

/***/ }),

/***/ 28:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }



// definition http://translate.sourceforge.net/wiki/l10n/pluralforms
/* eslint-disable */
var sets = [{ lngs: ['ach', 'ak', 'am', 'arn', 'br', 'fil', 'gun', 'ln', 'mfe', 'mg', 'mi', 'oc', 'tg', 'ti', 'tr', 'uz', 'wa'], nr: [1, 2], fc: 1 }, { lngs: ['af', 'an', 'ast', 'az', 'bg', 'bn', 'ca', 'da', 'de', 'dev', 'el', 'en', 'eo', 'es', 'es_ar', 'et', 'eu', 'fi', 'fo', 'fur', 'fy', 'gl', 'gu', 'ha', 'he', 'hi', 'hu', 'hy', 'ia', 'it', 'kn', 'ku', 'lb', 'mai', 'ml', 'mn', 'mr', 'nah', 'nap', 'nb', 'ne', 'nl', 'nn', 'no', 'nso', 'pa', 'pap', 'pms', 'ps', 'pt', 'pt_br', 'rm', 'sco', 'se', 'si', 'so', 'son', 'sq', 'sv', 'sw', 'ta', 'te', 'tk', 'ur', 'yo'], nr: [1, 2], fc: 2 }, { lngs: ['ay', 'bo', 'cgg', 'fa', 'id', 'ja', 'jbo', 'ka', 'kk', 'km', 'ko', 'ky', 'lo', 'ms', 'sah', 'su', 'th', 'tt', 'ug', 'vi', 'wo', 'zh'], nr: [1], fc: 3 }, { lngs: ['be', 'bs', 'dz', 'hr', 'ru', 'sr', 'uk'], nr: [1, 2, 5], fc: 4 }, { lngs: ['ar'], nr: [0, 1, 2, 3, 11, 100], fc: 5 }, { lngs: ['cs', 'sk'], nr: [1, 2, 5], fc: 6 }, { lngs: ['csb', 'pl'], nr: [1, 2, 5], fc: 7 }, { lngs: ['cy'], nr: [1, 2, 3, 8], fc: 8 }, { lngs: ['fr'], nr: [1, 2], fc: 9 }, { lngs: ['ga'], nr: [1, 2, 3, 7, 11], fc: 10 }, { lngs: ['gd'], nr: [1, 2, 3, 20], fc: 11 }, { lngs: ['is'], nr: [1, 2], fc: 12 }, { lngs: ['jv'], nr: [0, 1], fc: 13 }, { lngs: ['kw'], nr: [1, 2, 3, 4], fc: 14 }, { lngs: ['lt'], nr: [1, 2, 10], fc: 15 }, { lngs: ['lv'], nr: [1, 2, 0], fc: 16 }, { lngs: ['mk'], nr: [1, 2], fc: 17 }, { lngs: ['mnk'], nr: [0, 1, 2], fc: 18 }, { lngs: ['mt'], nr: [1, 2, 11, 20], fc: 19 }, { lngs: ['or'], nr: [2, 1], fc: 2 }, { lngs: ['ro'], nr: [1, 2, 20], fc: 20 }, { lngs: ['sl'], nr: [5, 1, 2, 3], fc: 21 }];

var _rulesPluralsTypes = {
  1: function _(n) {
    return Number(n > 1);
  },
  2: function _(n) {
    return Number(n != 1);
  },
  3: function _(n) {
    return 0;
  },
  4: function _(n) {
    return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
  },
  5: function _(n) {
    return Number(n === 0 ? 0 : n == 1 ? 1 : n == 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5);
  },
  6: function _(n) {
    return Number(n == 1 ? 0 : n >= 2 && n <= 4 ? 1 : 2);
  },
  7: function _(n) {
    return Number(n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
  },
  8: function _(n) {
    return Number(n == 1 ? 0 : n == 2 ? 1 : n != 8 && n != 11 ? 2 : 3);
  },
  9: function _(n) {
    return Number(n >= 2);
  },
  10: function _(n) {
    return Number(n == 1 ? 0 : n == 2 ? 1 : n < 7 ? 2 : n < 11 ? 3 : 4);
  },
  11: function _(n) {
    return Number(n == 1 || n == 11 ? 0 : n == 2 || n == 12 ? 1 : n > 2 && n < 20 ? 2 : 3);
  },
  12: function _(n) {
    return Number(n % 10 != 1 || n % 100 == 11);
  },
  13: function _(n) {
    return Number(n !== 0);
  },
  14: function _(n) {
    return Number(n == 1 ? 0 : n == 2 ? 1 : n == 3 ? 2 : 3);
  },
  15: function _(n) {
    return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
  },
  16: function _(n) {
    return Number(n % 10 == 1 && n % 100 != 11 ? 0 : n !== 0 ? 1 : 2);
  },
  17: function _(n) {
    return Number(n == 1 || n % 10 == 1 ? 0 : 1);
  },
  18: function _(n) {
    return Number(n == 0 ? 0 : n == 1 ? 1 : 2);
  },
  19: function _(n) {
    return Number(n == 1 ? 0 : n === 0 || n % 100 > 1 && n % 100 < 11 ? 1 : n % 100 > 10 && n % 100 < 20 ? 2 : 3);
  },
  20: function _(n) {
    return Number(n == 1 ? 0 : n === 0 || n % 100 > 0 && n % 100 < 20 ? 1 : 2);
  },
  21: function _(n) {
    return Number(n % 100 == 1 ? 1 : n % 100 == 2 ? 2 : n % 100 == 3 || n % 100 == 4 ? 3 : 0);
  }
};
/* eslint-enable */

function createRules() {
  var rules = {};
  sets.forEach(function (set) {
    set.lngs.forEach(function (l) {
      rules[l] = {
        numbers: set.nr,
        plurals: _rulesPluralsTypes[set.fc]
      };
    });
  });
  return rules;
}

var PluralResolver = function () {
  function PluralResolver(languageUtils) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, PluralResolver);

    this.languageUtils = languageUtils;
    this.options = options;

    this.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].create('pluralResolver');

    this.rules = createRules();
  }

  PluralResolver.prototype.addRule = function addRule(lng, obj) {
    this.rules[lng] = obj;
  };

  PluralResolver.prototype.getRule = function getRule(code) {
    return this.rules[this.languageUtils.getLanguagePartFromCode(code)];
  };

  PluralResolver.prototype.needsPlural = function needsPlural(code) {
    var rule = this.getRule(code);

    return rule && rule.numbers.length > 1;
  };

  PluralResolver.prototype.getSuffix = function getSuffix(code, count) {
    var _this = this;

    var rule = this.getRule(code);

    if (rule) {
      if (rule.numbers.length === 1) return ''; // only singular

      var idx = rule.noAbs ? rule.plurals(count) : rule.plurals(Math.abs(count));
      var suffix = rule.numbers[idx];

      // special treatment for lngs only having singular and plural
      if (this.options.simplifyPluralSuffix && rule.numbers.length === 2 && rule.numbers[0] === 1) {
        if (suffix === 2) {
          suffix = 'plural';
        } else if (suffix === 1) {
          suffix = '';
        }
      }

      var returnSuffix = function returnSuffix() {
        return _this.options.prepend && suffix.toString() ? _this.options.prepend + suffix.toString() : suffix.toString();
      };

      // COMPATIBILITY JSON
      // v1
      if (this.options.compatibilityJSON === 'v1') {
        if (suffix === 1) return '';
        if (typeof suffix === 'number') return '_plural_' + suffix.toString();
        return returnSuffix();
      } else if ( /* v2 */this.options.compatibilityJSON === 'v2' || rule.numbers.length === 2 && rule.numbers[0] === 1) {
        return returnSuffix();
      } else if ( /* v3 - gettext index */rule.numbers.length === 2 && rule.numbers[0] === 1) {
        return returnSuffix();
      }
      return this.options.prepend && idx.toString() ? this.options.prepend + idx.toString() : idx.toString();
    }

    this.logger.warn('no plural rule found for: ' + code);
    return '';
  };

  return PluralResolver;
}();

/* harmony default export */ __webpack_exports__["a"] = (PluralResolver);

/***/ }),

/***/ 282:
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(283);


/***/ }),

/***/ 283:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _bootstrap = __webpack_require__(284);

var _bootstrap2 = _interopRequireDefault(_bootstrap);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var accountApp = {
    bootstrap: _bootstrap2.default
};

if (typeof window !== 'undefined') {
    window.accountApp = accountApp;
}

module.exports = accountApp;

/***/ }),

/***/ 284:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _jquery = __webpack_require__(0);

var _jquery2 = _interopRequireDefault(_jquery);

var _configService = __webpack_require__(16);

var _configService2 = _interopRequireDefault(_configService);

var _locale = __webpack_require__(20);

var _locale2 = _interopRequireDefault(_locale);

var _lodash = __webpack_require__(4);

var _lodash2 = _interopRequireDefault(_lodash);

var _config = __webpack_require__(285);

var _config2 = _interopRequireDefault(_config);

var _emitter = __webpack_require__(15);

var _emitter2 = _interopRequireDefault(_emitter);

var _account = __webpack_require__(286);

var _account2 = _interopRequireDefault(_account);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

(0, _jquery2.default)(document).ready(function () {
    // hide or show callback url input whether user choose a web or dektop application
    (0, _jquery2.default)('#form_create input[name=type]').bind('click', function () {
        if ((0, _jquery2.default)(this).val() === 'desktop') {
            (0, _jquery2.default)('#form_create .callback-control-group').hide().find('input').val('');
        } else {
            (0, _jquery2.default)('#form_create .callback-control-group').show();
        }
    });
});

var Bootstrap = function () {
    function Bootstrap(userConfig) {
        _classCallCheck(this, Bootstrap);

        var configuration = (0, _lodash2.default)({}, _config2.default, userConfig);

        this.appEvents = new _emitter2.default();
        this.configService = new _configService2.default(configuration);
        this.onConfigReady();

        return this;
    }

    _createClass(Bootstrap, [{
        key: 'onConfigReady',
        value: function onConfigReady() {
            var _this = this;

            this.appServices = {
                configService: this.configService,
                localeService: this.localeService,
                appEvents: this.appEvents
            };

            /**
             * add components
             */

            (0, _jquery2.default)(document).ready(function () {
                var accountService = (0, _account2.default)(_this.appServices);

                accountService.initialize({
                    $container: (0, _jquery2.default)('body')
                });

                switch (_this.configService.get('state')) {
                    case 'editAccount':
                        accountService.editAccount();
                        break;
                    case 'editSession':
                        accountService.editSession();
                        break;
                    default:
                }
            });
        }
    }]);

    return Bootstrap;
}();

var bootstrap = function bootstrap(userConfig) {
    return new Bootstrap(userConfig);
};

exports.default = bootstrap;

/***/ }),

/***/ 285:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});
var defaultConfig = {
    locale: 'fr',
    basePath: '/',
    translations: '/prod/language.json'
};

exports.default = defaultConfig;

/***/ }),

/***/ 286:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _jquery = __webpack_require__(0);

var _jquery2 = _interopRequireDefault(_jquery);

var _geonames = __webpack_require__(55);

var _geonames2 = _interopRequireDefault(_geonames);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/*
 * This file is part of Phraseanet
 *
 * (c) 2005-2016 Alchemy
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

var account = function account(services) {
    var configService = services.configService,
        localeService = services.localeService,
        appEvents = services.appEvents;


    var initialize = function initialize(options) {
        var $container = options.$container;

        $container.on('click', '.alert .alert-block-close a', function (e) {
            e.preventDefault();
            (0, _jquery2.default)(this).closest('.alert').alert('close');
            return false;
        });

        // revoke third party application access
        (0, _jquery2.default)('a.app-btn').bind('click', function (e) {
            e.preventDefault();
            var $this = (0, _jquery2.default)(this);
            _jquery2.default.ajax({
                type: 'GET',
                url: $this.attr('href'),
                dataType: 'json',
                data: { revoke: $this.hasClass('authorize') ? 0 : 1 },
                success: function success(data) {
                    if (data.success) {
                        var li = $this.closest('li');

                        var hidden = (0, _jquery2.default)('.app-btn.hidden , .status.hidden', li);
                        var notHidden = (0, _jquery2.default)('.app-btn:not(.hidden), .status:not(.hidden)', li);

                        hidden.removeClass('hidden');
                        notHidden.addClass('hidden');
                    }
                }
            });
        });

        // generate new access token
        (0, _jquery2.default)('a#generate_access').bind('click', function (e) {
            e.preventDefault();
            var $this = (0, _jquery2.default)(this);
            _jquery2.default.ajax({
                type: 'POST',
                url: $this.attr('href'),
                dataType: 'json',
                data: {
                    usr_id: $this.closest('div').attr('id')
                },
                success: function success(data) {
                    if (data.success) {
                        (0, _jquery2.default)('#my_access_token').empty().append(data.token);
                    }
                }
            });
        });

        //modify application callback url
        (0, _jquery2.default)('.modifier_callback').bind('click', function () {
            var modifierBtn = (0, _jquery2.default)(this);
            var saveBtn = (0, _jquery2.default)('a.save_callback');
            var input = (0, _jquery2.default)('.url_callback_input');
            var inputVal = input.html();

            modifierBtn.hide();
            saveBtn.show();
            // wrapp current calback in an input
            input.empty().wrapInner('' + '<input value="' + inputVal + '"' + ' name="oauth_callback" size="50" type="text"/>');

            (0, _jquery2.default)('.url_callback').off();

            // save new callback
            saveBtn.bind('click', function (e) {
                e.preventDefault();
                var callback = (0, _jquery2.default)('input[name=oauth_callback]').val();
                _jquery2.default.ajax({
                    type: 'POST',
                    url: saveBtn.attr('href'),
                    dataType: 'json',
                    data: { callback: callback },
                    success: function success(data) {
                        if (data.success) {
                            input.empty().append(callback);
                        } else {
                            input.empty().append(inputVal);
                        }

                        modifierBtn.show();
                        saveBtn.hide();
                    }
                });
            });
        });

        //modify application webhook url
        (0, _jquery2.default)('.webhook-modify-btn').bind('click', function () {
            var modifierBtn = (0, _jquery2.default)(this);
            var saveBtn = (0, _jquery2.default)('a.save_webhook');
            var input = (0, _jquery2.default)('.url_webhook_input');
            var checkboxActive = (0, _jquery2.default)('.update-webhook-status');
            var inputVal = input.html();

            modifierBtn.hide();
            saveBtn.show();
            // wrapp current calback in an input
            input.empty().wrapInner('' + '<input value="' + inputVal + '"' + ' name="oauth_webhook" size="50" type="text"/>');

            (0, _jquery2.default)('.url_webhook').off();

            // save new callback
            saveBtn.bind('click', function (e) {
                e.preventDefault();
                var webhook = (0, _jquery2.default)('input[name=oauth_webhook]').val();
                _jquery2.default.ajax({
                    type: 'POST',
                    url: saveBtn.attr('href'),
                    dataType: 'json',
                    data: { webhook: webhook },
                    success: function success(data) {
                        if (data.success) {
                            input.empty().append(webhook);
                            checkboxActive.prop('checked', true);
                        } else {
                            input.empty().append(inputVal);
                        }

                        modifierBtn.show();
                        saveBtn.hide();
                    }
                });
            });
        });

        // hide or show callback url input whether user choose a web or dektop application
        /*   $('#form_create input[name=type]').bind('click', function () {
               if ($(this).val() === 'desktop') {
                   $('#form_create .callback-control-group').hide().find('input').val('');
               } else {
                   $('#form_create .callback-control-group').show();
               }
           });*/

        // authorize password grant type or not
        (0, _jquery2.default)('.grant-type').bind('click', function () {
            var $this = (0, _jquery2.default)(this);
            _jquery2.default.ajax({
                type: 'POST',
                url: $this.attr('value'),
                dataType: 'json',
                data: { grant: $this.is(':checked') ? '1' : '0' },
                success: function success(data) {}
            });
        });

        $container.on('click', '.update-listened-event', function () {
            var $this = (0, _jquery2.default)(this);
            _jquery2.default.ajax({
                type: 'POST',
                url: $this.attr('data-path'),
                dataType: 'json',
                data: {
                    action: $this.is(':checked') ? 'add' : 'remove'
                },
                success: function success(data) {}
            });
        });

        $container.on('click', '.update-webhook-status', function () {
            var $this = (0, _jquery2.default)(this);
            _jquery2.default.ajax({
                type: 'POST',
                url: $this.attr('data-path'),
                dataType: 'json',
                data: {
                    action: $this.is(':checked') ? 'activate' : 'deactivate'
                },
                success: function success(data) {}
            });
        });

        // delete an application
        /*  $('a.delete-app').bind('click', function (e) {
              e.preventDefault();
              var $this = $(this);
              var li = $this.closest('li');
               $.ajax({
                  type: 'DELETE',
                  url: $this.attr('href'),
                  dataType: 'json',
                  data: {},
                  success: function (data) {
                      if (data.success) {
                          li.find('.modal').modal('hide');
                          li.remove();
                      }
                  }
              });
          });*/
    };

    var editAccount = function editAccount() {
        (0, _jquery2.default)('legend').bind('click', function () {
            (0, _jquery2.default)('.form-info').hide(200);
            (0, _jquery2.default)((0, _jquery2.default)(this).data('target')).show();
        });

        _geonames2.default.init((0, _jquery2.default)('#form_geonameid'), {
            server: configService.get('geonameServerUrl'),
            limit: 40
        });
    };

    var editSession = function editSession() {
        var modal = (0, _jquery2.default)('#modal-delete-confirm').modal({
            show: false
        });

        (0, _jquery2.default)('a.delete-session').bind('click', function (e) {
            e.preventDefault();
            modal.data('delete-url', (0, _jquery2.default)(this).prop('href')).modal('toggle');

            return false;
        });

        (0, _jquery2.default)('a.confirm-delete').on('click', function (e) {
            e.preventDefault();
            _jquery2.default.ajax({
                type: 'POST',
                url: modal.data('delete-url'),
                dataType: 'json',
                success: function success(data) {
                    if (data.success) {
                        (0, _jquery2.default)('#row-' + data.session_id).closest('tr').remove();
                    }
                    modal.modal('toggle');
                }
            });
        });
    };

    return { initialize: initialize, editAccount: editAccount, editSession: editSession };
};
exports.default = account;

/***/ }),

/***/ 29:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(10);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__logger__ = __webpack_require__(3);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }




var Interpolator = function () {
  function Interpolator() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

    _classCallCheck(this, Interpolator);

    this.logger = __WEBPACK_IMPORTED_MODULE_1__logger__["a" /* default */].create('interpolator');

    this.init(options, true);
  }

  /* eslint no-param-reassign: 0 */


  Interpolator.prototype.init = function init() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var reset = arguments[1];

    if (reset) {
      this.options = options;
      this.format = options.interpolation && options.interpolation.format || function (value) {
        return value;
      };
      this.escape = options.interpolation && options.interpolation.escape || __WEBPACK_IMPORTED_MODULE_0__utils__["c" /* escape */];
    }
    if (!options.interpolation) options.interpolation = { escapeValue: true };

    var iOpts = options.interpolation;

    this.escapeValue = iOpts.escapeValue !== undefined ? iOpts.escapeValue : true;

    this.prefix = iOpts.prefix ? __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */](iOpts.prefix) : iOpts.prefixEscaped || '{{';
    this.suffix = iOpts.suffix ? __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */](iOpts.suffix) : iOpts.suffixEscaped || '}}';

    this.formatSeparator = iOpts.formatSeparator ? iOpts.formatSeparator : iOpts.formatSeparator || ',';

    this.unescapePrefix = iOpts.unescapeSuffix ? '' : iOpts.unescapePrefix || '-';
    this.unescapeSuffix = this.unescapePrefix ? '' : iOpts.unescapeSuffix || '';

    this.nestingPrefix = iOpts.nestingPrefix ? __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */](iOpts.nestingPrefix) : iOpts.nestingPrefixEscaped || __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */]('$t(');
    this.nestingSuffix = iOpts.nestingSuffix ? __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */](iOpts.nestingSuffix) : iOpts.nestingSuffixEscaped || __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* regexEscape */](')');

    // the regexp
    this.resetRegExp();
  };

  Interpolator.prototype.reset = function reset() {
    if (this.options) this.init(this.options);
  };

  Interpolator.prototype.resetRegExp = function resetRegExp() {
    // the regexp
    var regexpStr = this.prefix + '(.+?)' + this.suffix;
    this.regexp = new RegExp(regexpStr, 'g');

    var regexpUnescapeStr = '' + this.prefix + this.unescapePrefix + '(.+?)' + this.unescapeSuffix + this.suffix;
    this.regexpUnescape = new RegExp(regexpUnescapeStr, 'g');

    var nestingRegexpStr = this.nestingPrefix + '(.+?)' + this.nestingSuffix;
    this.nestingRegexp = new RegExp(nestingRegexpStr, 'g');
  };

  Interpolator.prototype.interpolate = function interpolate(str, data, lng) {
    var _this = this;

    var match = void 0;
    var value = void 0;

    function regexSafe(val) {
      return val.replace(/\$/g, '$$$$');
    }

    var handleFormat = function handleFormat(key) {
      if (key.indexOf(_this.formatSeparator) < 0) return __WEBPACK_IMPORTED_MODULE_0__utils__["d" /* getPath */](data, key);

      var p = key.split(_this.formatSeparator);
      var k = p.shift().trim();
      var f = p.join(_this.formatSeparator).trim();

      return _this.format(__WEBPACK_IMPORTED_MODULE_0__utils__["d" /* getPath */](data, k), f, lng);
    };

    this.resetRegExp();

    // unescape if has unescapePrefix/Suffix
    /* eslint no-cond-assign: 0 */
    while (match = this.regexpUnescape.exec(str)) {
      value = handleFormat(match[1].trim());
      str = str.replace(match[0], value);
      this.regexpUnescape.lastIndex = 0;
    }

    // regular escape on demand
    while (match = this.regexp.exec(str)) {
      value = handleFormat(match[1].trim());
      if (typeof value !== 'string') value = __WEBPACK_IMPORTED_MODULE_0__utils__["e" /* makeString */](value);
      if (!value) {
        this.logger.warn('missed to pass in variable ' + match[1] + ' for interpolating ' + str);
        value = '';
      }
      value = this.escapeValue ? regexSafe(this.escape(value)) : regexSafe(value);
      str = str.replace(match[0], value);
      this.regexp.lastIndex = 0;
    }
    return str;
  };

  Interpolator.prototype.nest = function nest(str, fc) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

    var match = void 0;
    var value = void 0;

    var clonedOptions = _extends({}, options);
    clonedOptions.applyPostProcessor = false; // avoid post processing on nested lookup

    // if value is something like "myKey": "lorem $(anotherKey, { "count": {{aValueInOptions}} })"
    function handleHasOptions(key) {
      if (key.indexOf(',') < 0) return key;

      var p = key.split(',');
      key = p.shift();
      var optionsString = p.join(',');
      optionsString = this.interpolate(optionsString, clonedOptions);
      optionsString = optionsString.replace(/'/g, '"');

      try {
        clonedOptions = JSON.parse(optionsString);
      } catch (e) {
        this.logger.error('failed parsing options string in nesting for key ' + key, e);
      }

      return key;
    }

    // regular escape on demand
    while (match = this.nestingRegexp.exec(str)) {
      value = fc(handleHasOptions.call(this, match[1].trim()), clonedOptions);

      // is only the nesting key (key1 = '$(key2)') return the value without stringify
      if (value && match[0] === str && typeof value !== 'string') return value;

      // no string to include or empty
      if (typeof value !== 'string') value = __WEBPACK_IMPORTED_MODULE_0__utils__["e" /* makeString */](value);
      if (!value) {
        this.logger.warn('missed to resolve ' + match[1] + ' for nesting ' + str);
        value = '';
      }
      // Nested keys should not be escaped by default #854
      // value = this.escapeValue ? regexSafe(utils.escape(value)) : regexSafe(value);
      str = str.replace(match[0], value);
      this.regexp.lastIndex = 0;
    }
    return str;
  };

  return Interpolator;
}();

/* harmony default export */ __webpack_exports__["a"] = (Interpolator);

/***/ }),

/***/ 3:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

var consoleLogger = {
  type: 'logger',

  log: function log(args) {
    this.output('log', args);
  },
  warn: function warn(args) {
    this.output('warn', args);
  },
  error: function error(args) {
    this.output('error', args);
  },
  output: function output(type, args) {
    var _console;

    /* eslint no-console: 0 */
    if (console && console[type]) (_console = console)[type].apply(_console, _toConsumableArray(args));
  }
};

var Logger = function () {
  function Logger(concreteLogger) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Logger);

    this.init(concreteLogger, options);
  }

  Logger.prototype.init = function init(concreteLogger) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    this.prefix = options.prefix || 'i18next:';
    this.logger = concreteLogger || consoleLogger;
    this.options = options;
    this.debug = options.debug;
  };

  Logger.prototype.setDebug = function setDebug(bool) {
    this.debug = bool;
  };

  Logger.prototype.log = function log() {
    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return this.forward(args, 'log', '', true);
  };

  Logger.prototype.warn = function warn() {
    for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      args[_key2] = arguments[_key2];
    }

    return this.forward(args, 'warn', '', true);
  };

  Logger.prototype.error = function error() {
    for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
      args[_key3] = arguments[_key3];
    }

    return this.forward(args, 'error', '');
  };

  Logger.prototype.deprecate = function deprecate() {
    for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
      args[_key4] = arguments[_key4];
    }

    return this.forward(args, 'warn', 'WARNING DEPRECATED: ', true);
  };

  Logger.prototype.forward = function forward(args, lvl, prefix, debugOnly) {
    if (debugOnly && !this.debug) return null;
    if (typeof args[0] === 'string') args[0] = '' + prefix + this.prefix + ' ' + args[0];
    return this.logger[lvl](args);
  };

  Logger.prototype.create = function create(moduleName) {
    return new Logger(this.logger, _extends({ prefix: this.prefix + ':' + moduleName + ':' }, this.options));
  };

  return Logger;
}();

/* harmony default export */ __webpack_exports__["a"] = (new Logger());

/***/ }),

/***/ 30:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(10);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__logger__ = __webpack_require__(3);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__EventEmitter__ = __webpack_require__(6);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }





function remove(arr, what) {
  var found = arr.indexOf(what);

  while (found !== -1) {
    arr.splice(found, 1);
    found = arr.indexOf(what);
  }
}

var Connector = function (_EventEmitter) {
  _inherits(Connector, _EventEmitter);

  function Connector(backend, store, services) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    _classCallCheck(this, Connector);

    var _this = _possibleConstructorReturn(this, _EventEmitter.call(this));

    _this.backend = backend;
    _this.store = store;
    _this.services = services;
    _this.options = options;
    _this.logger = __WEBPACK_IMPORTED_MODULE_1__logger__["a" /* default */].create('backendConnector');

    _this.state = {};
    _this.queue = [];

    if (_this.backend && _this.backend.init) {
      _this.backend.init(services, options.backend, options);
    }
    return _this;
  }

  Connector.prototype.queueLoad = function queueLoad(languages, namespaces, callback) {
    var _this2 = this;

    // find what needs to be loaded
    var toLoad = [];
    var pending = [];
    var toLoadLanguages = [];
    var toLoadNamespaces = [];

    languages.forEach(function (lng) {
      var hasAllNamespaces = true;

      namespaces.forEach(function (ns) {
        var name = lng + '|' + ns;

        if (_this2.store.hasResourceBundle(lng, ns)) {
          _this2.state[name] = 2; // loaded
        } else if (_this2.state[name] < 0) {
          // nothing to do for err
        } else if (_this2.state[name] === 1) {
          if (pending.indexOf(name) < 0) pending.push(name);
        } else {
          _this2.state[name] = 1; // pending

          hasAllNamespaces = false;

          if (pending.indexOf(name) < 0) pending.push(name);
          if (toLoad.indexOf(name) < 0) toLoad.push(name);
          if (toLoadNamespaces.indexOf(ns) < 0) toLoadNamespaces.push(ns);
        }
      });

      if (!hasAllNamespaces) toLoadLanguages.push(lng);
    });

    if (toLoad.length || pending.length) {
      this.queue.push({
        pending: pending,
        loaded: {},
        errors: [],
        callback: callback
      });
    }

    return {
      toLoad: toLoad,
      pending: pending,
      toLoadLanguages: toLoadLanguages,
      toLoadNamespaces: toLoadNamespaces
    };
  };

  Connector.prototype.loaded = function loaded(name, err, data) {
    var _this3 = this;

    var _name$split = name.split('|'),
        _name$split2 = _slicedToArray(_name$split, 2),
        lng = _name$split2[0],
        ns = _name$split2[1];

    if (err) this.emit('failedLoading', lng, ns, err);

    if (data) {
      this.store.addResourceBundle(lng, ns, data);
    }

    // set loaded
    this.state[name] = err ? -1 : 2;

    // callback if ready
    this.queue.forEach(function (q) {
      __WEBPACK_IMPORTED_MODULE_0__utils__["f" /* pushPath */](q.loaded, [lng], ns);
      remove(q.pending, name);

      if (err) q.errors.push(err);

      if (q.pending.length === 0 && !q.done) {
        _this3.emit('loaded', q.loaded);
        /* eslint no-param-reassign: 0 */
        q.done = true;
        if (q.errors.length) {
          q.callback(q.errors);
        } else {
          q.callback();
        }
      }
    });

    // remove done load requests
    this.queue = this.queue.filter(function (q) {
      return !q.done;
    });
  };

  Connector.prototype.read = function read(lng, ns, fcName) {
    var tried = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;

    var _this4 = this;

    var wait = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 250;
    var callback = arguments[5];

    if (!lng.length) return callback(null, {}); // noting to load

    return this.backend[fcName](lng, ns, function (err, data) {
      if (err && data /* = retryFlag */ && tried < 5) {
        setTimeout(function () {
          _this4.read.call(_this4, lng, ns, fcName, tried + 1, wait * 2, callback);
        }, wait);
        return;
      }
      callback(err, data);
    });
  };

  /* eslint consistent-return: 0 */


  Connector.prototype.load = function load(languages, namespaces, callback) {
    var _this5 = this;

    if (!this.backend) {
      this.logger.warn('No backend was added via i18next.use. Will not load resources.');
      return callback && callback();
    }
    var options = _extends({}, this.backend.options, this.options.backend);

    if (typeof languages === 'string') languages = this.services.languageUtils.toResolveHierarchy(languages);
    if (typeof namespaces === 'string') namespaces = [namespaces];

    var toLoad = this.queueLoad(languages, namespaces, callback);
    if (!toLoad.toLoad.length) {
      if (!toLoad.pending.length) callback(); // nothing to load and no pendings...callback now
      return null; // pendings will trigger callback
    }

    // load with multi-load
    if (options.allowMultiLoading && this.backend.readMulti) {
      this.read(toLoad.toLoadLanguages, toLoad.toLoadNamespaces, 'readMulti', null, null, function (err, data) {
        if (err) _this5.logger.warn('loading namespaces ' + toLoad.toLoadNamespaces.join(', ') + ' for languages ' + toLoad.toLoadLanguages.join(', ') + ' via multiloading failed', err);
        if (!err && data) _this5.logger.log('successfully loaded namespaces ' + toLoad.toLoadNamespaces.join(', ') + ' for languages ' + toLoad.toLoadLanguages.join(', ') + ' via multiloading', data);

        toLoad.toLoad.forEach(function (name) {
          var _name$split3 = name.split('|'),
              _name$split4 = _slicedToArray(_name$split3, 2),
              l = _name$split4[0],
              n = _name$split4[1];

          var bundle = __WEBPACK_IMPORTED_MODULE_0__utils__["d" /* getPath */](data, [l, n]);
          if (bundle) {
            _this5.loaded(name, err, bundle);
          } else {
            var error = 'loading namespace ' + n + ' for language ' + l + ' via multiloading failed';
            _this5.loaded(name, error);
            _this5.logger.error(error);
          }
        });
      });
    } else {
      toLoad.toLoad.forEach(function (name) {
        _this5.loadOne(name);
      });
    }
  };

  Connector.prototype.reload = function reload(languages, namespaces) {
    var _this6 = this;

    if (!this.backend) {
      this.logger.warn('No backend was added via i18next.use. Will not load resources.');
    }
    var options = _extends({}, this.backend.options, this.options.backend);

    if (typeof languages === 'string') languages = this.services.languageUtils.toResolveHierarchy(languages);
    if (typeof namespaces === 'string') namespaces = [namespaces];

    // load with multi-load
    if (options.allowMultiLoading && this.backend.readMulti) {
      this.read(languages, namespaces, 'readMulti', null, null, function (err, data) {
        if (err) _this6.logger.warn('reloading namespaces ' + namespaces.join(', ') + ' for languages ' + languages.join(', ') + ' via multiloading failed', err);
        if (!err && data) _this6.logger.log('successfully reloaded namespaces ' + namespaces.join(', ') + ' for languages ' + languages.join(', ') + ' via multiloading', data);

        languages.forEach(function (l) {
          namespaces.forEach(function (n) {
            var bundle = __WEBPACK_IMPORTED_MODULE_0__utils__["d" /* getPath */](data, [l, n]);
            if (bundle) {
              _this6.loaded(l + '|' + n, err, bundle);
            } else {
              var error = 'reloading namespace ' + n + ' for language ' + l + ' via multiloading failed';
              _this6.loaded(l + '|' + n, error);
              _this6.logger.error(error);
            }
          });
        });
      });
    } else {
      languages.forEach(function (l) {
        namespaces.forEach(function (n) {
          _this6.loadOne(l + '|' + n, 're');
        });
      });
    }
  };

  Connector.prototype.loadOne = function loadOne(name) {
    var _this7 = this;

    var prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

    var _name$split5 = name.split('|'),
        _name$split6 = _slicedToArray(_name$split5, 2),
        lng = _name$split6[0],
        ns = _name$split6[1];

    this.read(lng, ns, 'read', null, null, function (err, data) {
      if (err) _this7.logger.warn(prefix + 'loading namespace ' + ns + ' for language ' + lng + ' failed', err);
      if (!err && data) _this7.logger.log(prefix + 'loaded namespace ' + ns + ' for language ' + lng, data);

      _this7.loaded(name, err, data);
    });
  };

  Connector.prototype.saveMissing = function saveMissing(languages, namespace, key, fallbackValue) {
    if (this.backend && this.backend.create) this.backend.create(languages, namespace, key, fallbackValue);

    // write to store to avoid resending
    if (!languages || !languages[0]) return;
    this.store.addResource(languages[0], namespace, key, fallbackValue);
  };

  return Connector;
}(__WEBPACK_IMPORTED_MODULE_2__EventEmitter__["a" /* default */]);

/* harmony default export */ __webpack_exports__["a"] = (Connector);

/***/ }),

/***/ 31:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__logger__ = __webpack_require__(3);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__EventEmitter__ = __webpack_require__(6);
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }




var Connector = function (_EventEmitter) {
  _inherits(Connector, _EventEmitter);

  function Connector(cache, store, services) {
    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

    _classCallCheck(this, Connector);

    var _this = _possibleConstructorReturn(this, _EventEmitter.call(this));

    _this.cache = cache;
    _this.store = store;
    _this.services = services;
    _this.options = options;
    _this.logger = __WEBPACK_IMPORTED_MODULE_0__logger__["a" /* default */].create('cacheConnector');

    if (_this.cache && _this.cache.init) _this.cache.init(services, options.cache, options);
    return _this;
  }

  /* eslint consistent-return: 0 */


  Connector.prototype.load = function load(languages, namespaces, callback) {
    var _this2 = this;

    if (!this.cache) return callback && callback();
    var options = _extends({}, this.cache.options, this.options.cache);

    var loadLngs = typeof languages === 'string' ? this.services.languageUtils.toResolveHierarchy(languages) : languages;

    if (options.enabled) {
      this.cache.load(loadLngs, function (err, data) {
        if (err) _this2.logger.error('loading languages ' + loadLngs.join(', ') + ' from cache failed', err);
        if (data) {
          /* eslint no-restricted-syntax: 0 */
          for (var l in data) {
            if (Object.prototype.hasOwnProperty.call(data, l)) {
              for (var n in data[l]) {
                if (Object.prototype.hasOwnProperty.call(data[l], n)) {
                  if (n !== 'i18nStamp') {
                    var bundle = data[l][n];
                    if (bundle) _this2.store.addResourceBundle(l, n, bundle);
                  }
                }
              }
            }
          }
        }
        if (callback) callback();
      });
    } else if (callback) {
      callback();
    }
  };

  Connector.prototype.save = function save() {
    if (this.cache && this.options.cache && this.options.cache.enabled) this.cache.save(this.store.data);
  };

  return Connector;
}(__WEBPACK_IMPORTED_MODULE_1__EventEmitter__["a" /* default */]);

/* harmony default export */ __webpack_exports__["a"] = (Connector);

/***/ }),

/***/ 32:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return get; });
/* harmony export (immutable) */ __webpack_exports__["b"] = transformOptions;

function get() {
  return {
    debug: false,
    initImmediate: true,

    ns: ['translation'],
    defaultNS: ['translation'],
    fallbackLng: ['dev'],
    fallbackNS: false, // string or array of namespaces

    whitelist: false, // array with whitelisted languages
    nonExplicitWhitelist: false,
    load: 'all', // | currentOnly | languageOnly
    preload: false, // array with preload languages

    simplifyPluralSuffix: true,
    keySeparator: '.',
    nsSeparator: ':',
    pluralSeparator: '_',
    contextSeparator: '_',

    saveMissing: false, // enable to send missing values
    saveMissingTo: 'fallback', // 'current' || 'all'
    missingKeyHandler: false, // function(lng, ns, key, fallbackValue) -> override if prefer on handling

    postProcess: false, // string or array of postProcessor names
    returnNull: true, // allows null value as valid translation
    returnEmptyString: true, // allows empty string value as valid translation
    returnObjects: false,
    joinArrays: false, // or string to join array
    returnedObjectHandler: function returnedObjectHandler() {}, // function(key, value, options) triggered if key returns object but returnObjects is set to false
    parseMissingKeyHandler: false, // function(key) parsed a key that was not found in t() before returning
    appendNamespaceToMissingKey: false,
    appendNamespaceToCIMode: false,
    overloadTranslationOptionHandler: function handle(args) {
      return { defaultValue: args[1] };
    },

    interpolation: {
      escapeValue: true,
      format: function format(value, _format, lng) {
        return value;
      },
      prefix: '{{',
      suffix: '}}',
      formatSeparator: ',',
      // prefixEscaped: '{{',
      // suffixEscaped: '}}',
      // unescapeSuffix: '',
      unescapePrefix: '-',

      nestingPrefix: '$t(',
      nestingSuffix: ')',
      // nestingPrefixEscaped: '$t(',
      // nestingSuffixEscaped: ')',
      defaultVariables: undefined // object that can have values to interpolate on - extends passed in interpolation data
    }
  };
}

/* eslint no-param-reassign: 0 */
function transformOptions(options) {
  // create namespace object if namespace is passed in as string
  if (typeof options.ns === 'string') options.ns = [options.ns];
  if (typeof options.fallbackLng === 'string') options.fallbackLng = [options.fallbackLng];
  if (typeof options.fallbackNS === 'string') options.fallbackNS = [options.fallbackNS];

  // extend whitelist with cimode
  if (options.whitelist && options.whitelist.indexOf('cimode') < 0) options.whitelist.push('cimode');

  return options;
}

/***/ }),

/***/ 33:
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(34).default;


/***/ }),

/***/ 34:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _utils = __webpack_require__(35);

var utils = _interopRequireWildcard(_utils);

var _ajax = __webpack_require__(36);

var _ajax2 = _interopRequireDefault(_ajax);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function getDefaults() {
  return {
    loadPath: '/locales/{{lng}}/{{ns}}.json',
    addPath: '/locales/add/{{lng}}/{{ns}}',
    allowMultiLoading: false,
    parse: JSON.parse,
    crossDomain: false,
    ajax: _ajax2.default
  };
}

var Backend = function () {
  function Backend(services) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Backend);

    this.init(services, options);

    this.type = 'backend';
  }

  _createClass(Backend, [{
    key: 'init',
    value: function init(services) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      this.services = services;
      this.options = utils.defaults(options, this.options || {}, getDefaults());
    }
  }, {
    key: 'readMulti',
    value: function readMulti(languages, namespaces, callback) {
      var loadPath = this.options.loadPath;
      if (typeof this.options.loadPath === 'function') {
        loadPath = this.options.loadPath(languages, namespaces);
      }

      var url = this.services.interpolator.interpolate(loadPath, { lng: languages.join('+'), ns: namespaces.join('+') });

      this.loadUrl(url, callback);
    }
  }, {
    key: 'read',
    value: function read(language, namespace, callback) {
      var loadPath = this.options.loadPath;
      if (typeof this.options.loadPath === 'function') {
        loadPath = this.options.loadPath([language], [namespace]);
      }

      var url = this.services.interpolator.interpolate(loadPath, { lng: language, ns: namespace });

      this.loadUrl(url, callback);
    }
  }, {
    key: 'loadUrl',
    value: function loadUrl(url, callback) {
      var _this = this;

      this.options.ajax(url, this.options, function (data, xhr) {
        if (xhr.status >= 500 && xhr.status < 600) return callback('failed loading ' + url, true /* retry */);
        if (xhr.status >= 400 && xhr.status < 500) return callback('failed loading ' + url, false /* no retry */);

        var ret = void 0,
            err = void 0;
        try {
          ret = _this.options.parse(data, url);
        } catch (e) {
          err = 'failed parsing ' + url + ' to json';
        }
        if (err) return callback(err, false);
        callback(null, ret);
      });
    }
  }, {
    key: 'create',
    value: function create(languages, namespace, key, fallbackValue) {
      var _this2 = this;

      if (typeof languages === 'string') languages = [languages];

      var payload = {};
      payload[key] = fallbackValue || '';

      languages.forEach(function (lng) {
        var url = _this2.services.interpolator.interpolate(_this2.options.addPath, { lng: lng, ns: namespace });

        _this2.options.ajax(url, _this2.options, function (data, xhr) {
          //const statusCode = xhr.status.toString();
          // TODO: if statusCode === 4xx do log
        }, payload);
      });
    }
  }]);

  return Backend;
}();

Backend.type = 'backend';

exports.default = Backend;

/***/ }),

/***/ 35:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.defaults = defaults;
exports.extend = extend;
var arr = [];
var each = arr.forEach;
var slice = arr.slice;

function defaults(obj) {
  each.call(slice.call(arguments, 1), function (source) {
    if (source) {
      for (var prop in source) {
        if (obj[prop] === undefined) obj[prop] = source[prop];
      }
    }
  });
  return obj;
}

function extend(obj) {
  each.call(slice.call(arguments, 1), function (source) {
    if (source) {
      for (var prop in source) {
        obj[prop] = source[prop];
      }
    }
  });
  return obj;
}

/***/ }),

/***/ 36:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

function addQueryString(url, params) {
  if (params && (typeof params === 'undefined' ? 'undefined' : _typeof(params)) === 'object') {
    var queryString = '',
        e = encodeURIComponent;

    // Must encode data
    for (var paramName in params) {
      queryString += '&' + e(paramName) + '=' + e(params[paramName]);
    }

    if (!queryString) {
      return url;
    }

    url = url + (url.indexOf('?') !== -1 ? '&' : '?') + queryString.slice(1);
  }

  return url;
}

// https://gist.github.com/Xeoncross/7663273
function ajax(url, options, callback, data, cache) {

  if (data && (typeof data === 'undefined' ? 'undefined' : _typeof(data)) === 'object') {
    if (!cache) {
      data['_t'] = new Date();
    }
    // URL encoded form data must be in querystring format
    data = addQueryString('', data).slice(1);
  }

  if (options.queryStringParams) {
    url = addQueryString(url, options.queryStringParams);
  }

  try {
    var x;
    if (XMLHttpRequest) {
      x = new XMLHttpRequest();
    } else {
      x = new ActiveXObject('MSXML2.XMLHTTP.3.0');
    }
    x.open(data ? 'POST' : 'GET', url, 1);
    if (!options.crossDomain) {
      x.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    }
    x.withCredentials = !!options.withCredentials;
    if (data) {
      x.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    }
    if (x.overrideMimeType) {
      x.overrideMimeType("application/json");
    }
    var h = options.customHeaders;
    if (h) {
      for (var i in h) {
        x.setRequestHeader(i, h[i]);
      }
    }
    x.onreadystatechange = function () {
      x.readyState > 3 && callback && callback(x.responseText, x);
    };
    x.send(data);
  } catch (e) {
    console && console.log(e);
  }
}

exports.default = ajax;

/***/ }),

/***/ 38:
/***/ (function(module, exports, __webpack_require__) {

var jQuery = __webpack_require__(0);

/*! jQuery UI - v1.10.3 - 2013-05-03
* http://jqueryui.com
* Includes: jquery.ui.core.js, jquery.ui.widget.js, jquery.ui.mouse.js, jquery.ui.draggable.js, jquery.ui.droppable.js, jquery.ui.resizable.js, jquery.ui.selectable.js, jquery.ui.sortable.js, jquery.ui.effect.js, jquery.ui.accordion.js, jquery.ui.autocomplete.js, jquery.ui.button.js, jquery.ui.datepicker.js, jquery.ui.dialog.js, jquery.ui.effect-blind.js, jquery.ui.effect-bounce.js, jquery.ui.effect-clip.js, jquery.ui.effect-drop.js, jquery.ui.effect-explode.js, jquery.ui.effect-fade.js, jquery.ui.effect-fold.js, jquery.ui.effect-highlight.js, jquery.ui.effect-pulsate.js, jquery.ui.effect-scale.js, jquery.ui.effect-shake.js, jquery.ui.effect-slide.js, jquery.ui.effect-transfer.js, jquery.ui.menu.js, jquery.ui.position.js, jquery.ui.progressbar.js, jquery.ui.slider.js, jquery.ui.spinner.js, jquery.ui.tabs.js, jquery.ui.tooltip.js
* Copyright 2013 jQuery Foundation and other contributors; Licensed MIT */
(function( $, undefined ) {

var uuid = 0,
	runiqueId = /^ui-id-\d+$/;

// $.ui might exist from components with no dependencies, e.g., $.ui.position
$.ui = $.ui || {};

$.extend( $.ui, {
	version: "1.10.3",

	keyCode: {
		BACKSPACE: 8,
		COMMA: 188,
		DELETE: 46,
		DOWN: 40,
		END: 35,
		ENTER: 13,
		ESCAPE: 27,
		HOME: 36,
		LEFT: 37,
		NUMPAD_ADD: 107,
		NUMPAD_DECIMAL: 110,
		NUMPAD_DIVIDE: 111,
		NUMPAD_ENTER: 108,
		NUMPAD_MULTIPLY: 106,
		NUMPAD_SUBTRACT: 109,
		PAGE_DOWN: 34,
		PAGE_UP: 33,
		PERIOD: 190,
		RIGHT: 39,
		SPACE: 32,
		TAB: 9,
		UP: 38
	}
});

// plugins
$.fn.extend({
	focus: (function( orig ) {
		return function( delay, fn ) {
			return typeof delay === "number" ?
				this.each(function() {
					var elem = this;
					setTimeout(function() {
						$( elem ).focus();
						if ( fn ) {
							fn.call( elem );
						}
					}, delay );
				}) :
				orig.apply( this, arguments );
		};
	})( $.fn.focus ),

	scrollParent: function() {
		var scrollParent;
		if (($.ui.ie && (/(static|relative)/).test(this.css("position"))) || (/absolute/).test(this.css("position"))) {
			scrollParent = this.parents().filter(function() {
				return (/(relative|absolute|fixed)/).test($.css(this,"position")) && (/(auto|scroll)/).test($.css(this,"overflow")+$.css(this,"overflow-y")+$.css(this,"overflow-x"));
			}).eq(0);
		} else {
			scrollParent = this.parents().filter(function() {
				return (/(auto|scroll)/).test($.css(this,"overflow")+$.css(this,"overflow-y")+$.css(this,"overflow-x"));
			}).eq(0);
		}

		return (/fixed/).test(this.css("position")) || !scrollParent.length ? $(document) : scrollParent;
	},

	zIndex: function( zIndex ) {
		if ( zIndex !== undefined ) {
			return this.css( "zIndex", zIndex );
		}

		if ( this.length ) {
			var elem = $( this[ 0 ] ), position, value;
			while ( elem.length && elem[ 0 ] !== document ) {
				// Ignore z-index if position is set to a value where z-index is ignored by the browser
				// This makes behavior of this function consistent across browsers
				// WebKit always returns auto if the element is positioned
				position = elem.css( "position" );
				if ( position === "absolute" || position === "relative" || position === "fixed" ) {
					// IE returns 0 when zIndex is not specified
					// other browsers return a string
					// we ignore the case of nested elements with an explicit value of 0
					// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
					value = parseInt( elem.css( "zIndex" ), 10 );
					if ( !isNaN( value ) && value !== 0 ) {
						return value;
					}
				}
				elem = elem.parent();
			}
		}

		return 0;
	},

	uniqueId: function() {
		return this.each(function() {
			if ( !this.id ) {
				this.id = "ui-id-" + (++uuid);
			}
		});
	},

	removeUniqueId: function() {
		return this.each(function() {
			if ( runiqueId.test( this.id ) ) {
				$( this ).removeAttr( "id" );
			}
		});
	}
});

// selectors
function focusable( element, isTabIndexNotNaN ) {
	var map, mapName, img,
		nodeName = element.nodeName.toLowerCase();
	if ( "area" === nodeName ) {
		map = element.parentNode;
		mapName = map.name;
		if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
			return false;
		}
		img = $( "img[usemap=#" + mapName + "]" )[0];
		return !!img && visible( img );
	}
	return ( /input|select|textarea|button|object/.test( nodeName ) ?
		!element.disabled :
		"a" === nodeName ?
			element.href || isTabIndexNotNaN :
			isTabIndexNotNaN) &&
		// the element and all of its ancestors must be visible
		visible( element );
}

function visible( element ) {
	return $.expr.filters.visible( element ) &&
		!$( element ).parents().addBack().filter(function() {
			return $.css( this, "visibility" ) === "hidden";
		}).length;
}

$.extend( $.expr[ ":" ], {
	data: $.expr.createPseudo ?
		$.expr.createPseudo(function( dataName ) {
			return function( elem ) {
				return !!$.data( elem, dataName );
			};
		}) :
		// support: jQuery <1.8
		function( elem, i, match ) {
			return !!$.data( elem, match[ 3 ] );
		},

	focusable: function( element ) {
		return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
	},

	tabbable: function( element ) {
		var tabIndex = $.attr( element, "tabindex" ),
			isTabIndexNaN = isNaN( tabIndex );
		return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
	}
});

// support: jQuery <1.8
if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
	$.each( [ "Width", "Height" ], function( i, name ) {
		var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
			type = name.toLowerCase(),
			orig = {
				innerWidth: $.fn.innerWidth,
				innerHeight: $.fn.innerHeight,
				outerWidth: $.fn.outerWidth,
				outerHeight: $.fn.outerHeight
			};

		function reduce( elem, size, border, margin ) {
			$.each( side, function() {
				size -= parseFloat( $.css( elem, "padding" + this ) ) || 0;
				if ( border ) {
					size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
				}
				if ( margin ) {
					size -= parseFloat( $.css( elem, "margin" + this ) ) || 0;
				}
			});
			return size;
		}

		$.fn[ "inner" + name ] = function( size ) {
			if ( size === undefined ) {
				return orig[ "inner" + name ].call( this );
			}

			return this.each(function() {
				$( this ).css( type, reduce( this, size ) + "px" );
			});
		};

		$.fn[ "outer" + name] = function( size, margin ) {
			if ( typeof size !== "number" ) {
				return orig[ "outer" + name ].call( this, size );
			}

			return this.each(function() {
				$( this).css( type, reduce( this, size, true, margin ) + "px" );
			});
		};
	});
}

// support: jQuery <1.8
if ( !$.fn.addBack ) {
	$.fn.addBack = function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	};
}

// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
	$.fn.removeData = (function( removeData ) {
		return function( key ) {
			if ( arguments.length ) {
				return removeData.call( this, $.camelCase( key ) );
			} else {
				return removeData.call( this );
			}
		};
	})( $.fn.removeData );
}





// deprecated
$.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );

$.support.selectstart = "onselectstart" in document.createElement( "div" );
$.fn.extend({
	disableSelection: function() {
		return this.bind( ( $.support.selectstart ? "selectstart" : "mousedown" ) +
			".ui-disableSelection", function( event ) {
				event.preventDefault();
			});
	},

	enableSelection: function() {
		return this.unbind( ".ui-disableSelection" );
	}
});

$.extend( $.ui, {
	// $.ui.plugin is deprecated. Use $.widget() extensions instead.
	plugin: {
		add: function( module, option, set ) {
			var i,
				proto = $.ui[ module ].prototype;
			for ( i in set ) {
				proto.plugins[ i ] = proto.plugins[ i ] || [];
				proto.plugins[ i ].push( [ option, set[ i ] ] );
			}
		},
		call: function( instance, name, args ) {
			var i,
				set = instance.plugins[ name ];
			if ( !set || !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) {
				return;
			}

			for ( i = 0; i < set.length; i++ ) {
				if ( instance.options[ set[ i ][ 0 ] ] ) {
					set[ i ][ 1 ].apply( instance.element, args );
				}
			}
		}
	},

	// only used by resizable
	hasScroll: function( el, a ) {

		//If overflow is hidden, the element might have extra content, but the user wants to hide it
		if ( $( el ).css( "overflow" ) === "hidden") {
			return false;
		}

		var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop",
			has = false;

		if ( el[ scroll ] > 0 ) {
			return true;
		}

		// TODO: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		el[ scroll ] = 1;
		has = ( el[ scroll ] > 0 );
		el[ scroll ] = 0;
		return has;
	}
});

})( jQuery );

(function( $, undefined ) {

var uuid = 0,
	slice = Array.prototype.slice,
	_cleanData = $.cleanData;
$.cleanData = function( elems ) {
	for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
		try {
			$( elem ).triggerHandler( "remove" );
		// http://bugs.jquery.com/ticket/8235
		} catch( e ) {}
	}
	_cleanData( elems );
};

$.widget = function( name, base, prototype ) {
	var fullName, existingConstructor, constructor, basePrototype,
		// proxiedPrototype allows the provided prototype to remain unmodified
		// so that it can be used as a mixin for multiple widgets (#8876)
		proxiedPrototype = {},
		namespace = name.split( "." )[ 0 ];

	name = name.split( "." )[ 1 ];
	fullName = namespace + "-" + name;

	if ( !prototype ) {
		prototype = base;
		base = $.Widget;
	}

	// create selector for plugin
	$.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
		return !!$.data( elem, fullName );
	};

	$[ namespace ] = $[ namespace ] || {};
	existingConstructor = $[ namespace ][ name ];
	constructor = $[ namespace ][ name ] = function( options, element ) {
		// allow instantiation without "new" keyword
		if ( !this._createWidget ) {
			return new constructor( options, element );
		}

		// allow instantiation without initializing for simple inheritance
		// must use "new" keyword (the code above always passes args)
		if ( arguments.length ) {
			this._createWidget( options, element );
		}
	};
	// extend with the existing constructor to carry over any static properties
	$.extend( constructor, existingConstructor, {
		version: prototype.version,
		// copy the object used to create the prototype in case we need to
		// redefine the widget later
		_proto: $.extend( {}, prototype ),
		// track widgets that inherit from this widget in case this widget is
		// redefined after a widget inherits from it
		_childConstructors: []
	});

	basePrototype = new base();
	// we need to make the options hash a property directly on the new instance
	// otherwise we'll modify the options hash on the prototype that we're
	// inheriting from
	basePrototype.options = $.widget.extend( {}, basePrototype.options );
	$.each( prototype, function( prop, value ) {
		if ( !$.isFunction( value ) ) {
			proxiedPrototype[ prop ] = value;
			return;
		}
		proxiedPrototype[ prop ] = (function() {
			var _super = function() {
					return base.prototype[ prop ].apply( this, arguments );
				},
				_superApply = function( args ) {
					return base.prototype[ prop ].apply( this, args );
				};
			return function() {
				var __super = this._super,
					__superApply = this._superApply,
					returnValue;

				this._super = _super;
				this._superApply = _superApply;

				returnValue = value.apply( this, arguments );

				this._super = __super;
				this._superApply = __superApply;

				return returnValue;
			};
		})();
	});
	constructor.prototype = $.widget.extend( basePrototype, {
		// TODO: remove support for widgetEventPrefix
		// always use the name + a colon as the prefix, e.g., draggable:start
		// don't prefix for widgets that aren't DOM-based
		widgetEventPrefix: existingConstructor ? basePrototype.widgetEventPrefix : name
	}, proxiedPrototype, {
		constructor: constructor,
		namespace: namespace,
		widgetName: name,
		widgetFullName: fullName
	});

	// If this widget is being redefined then we need to find all widgets that
	// are inheriting from it and redefine all of them so that they inherit from
	// the new version of this widget. We're essentially trying to replace one
	// level in the prototype chain.
	if ( existingConstructor ) {
		$.each( existingConstructor._childConstructors, function( i, child ) {
			var childPrototype = child.prototype;

			// redefine the child widget using the same prototype that was
			// originally used, but inherit from the new version of the base
			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
		});
		// remove the list of existing child constructors from the old constructor
		// so the old child constructors can be garbage collected
		delete existingConstructor._childConstructors;
	} else {
		base._childConstructors.push( constructor );
	}

	$.widget.bridge( name, constructor );
};

$.widget.extend = function( target ) {
	var input = slice.call( arguments, 1 ),
		inputIndex = 0,
		inputLength = input.length,
		key,
		value;
	for ( ; inputIndex < inputLength; inputIndex++ ) {
		for ( key in input[ inputIndex ] ) {
			value = input[ inputIndex ][ key ];
			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
				// Clone objects
				if ( $.isPlainObject( value ) ) {
					target[ key ] = $.isPlainObject( target[ key ] ) ?
						$.widget.extend( {}, target[ key ], value ) :
						// Don't extend strings, arrays, etc. with objects
						$.widget.extend( {}, value );
				// Copy everything else by reference
				} else {
					target[ key ] = value;
				}
			}
		}
	}
	return target;
};

$.widget.bridge = function( name, object ) {
	var fullName = object.prototype.widgetFullName || name;
	$.fn[ name ] = function( options ) {
		var isMethodCall = typeof options === "string",
			args = slice.call( arguments, 1 ),
			returnValue = this;

		// allow multiple hashes to be passed on init
		options = !isMethodCall && args.length ?
			$.widget.extend.apply( null, [ options ].concat(args) ) :
			options;

		if ( isMethodCall ) {
			this.each(function() {
				var methodValue,
					instance = $.data( this, fullName );
				if ( !instance ) {
					return $.error( "cannot call methods on " + name + " prior to initialization; " +
						"attempted to call method '" + options + "'" );
				}
				if ( !$.isFunction( instance[options] ) || options.charAt( 0 ) === "_" ) {
					return $.error( "no such method '" + options + "' for " + name + " widget instance" );
				}
				methodValue = instance[ options ].apply( instance, args );
				if ( methodValue !== instance && methodValue !== undefined ) {
					returnValue = methodValue && methodValue.jquery ?
						returnValue.pushStack( methodValue.get() ) :
						methodValue;
					return false;
				}
			});
		} else {
			this.each(function() {
				var instance = $.data( this, fullName );
				if ( instance ) {
					instance.option( options || {} )._init();
				} else {
					$.data( this, fullName, new object( options, this ) );
				}
			});
		}

		return returnValue;
	};
};

$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];

$.Widget.prototype = {
	widgetName: "widget",
	widgetEventPrefix: "",
	defaultElement: "<div>",
	options: {
		disabled: false,

		// callbacks
		create: null
	},
	_createWidget: function( options, element ) {
		element = $( element || this.defaultElement || this )[ 0 ];
		this.element = $( element );
		this.uuid = uuid++;
		this.eventNamespace = "." + this.widgetName + this.uuid;
		this.options = $.widget.extend( {},
			this.options,
			this._getCreateOptions(),
			options );

		this.bindings = $();
		this.hoverable = $();
		this.focusable = $();

		if ( element !== this ) {
			$.data( element, this.widgetFullName, this );
			this._on( true, this.element, {
				remove: function( event ) {
					if ( event.target === element ) {
						this.destroy();
					}
				}
			});
			this.document = $( element.style ?
				// element within the document
				element.ownerDocument :
				// element is window or document
				element.document || element );
			this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
		}

		this._create();
		this._trigger( "create", null, this._getCreateEventData() );
		this._init();
	},
	_getCreateOptions: $.noop,
	_getCreateEventData: $.noop,
	_create: $.noop,
	_init: $.noop,

	destroy: function() {
		this._destroy();
		// we can probably remove the unbind calls in 2.0
		// all event bindings should go through this._on()
		this.element
			.unbind( this.eventNamespace )
			// 1.9 BC for #7810
			// TODO remove dual storage
			.removeData( this.widgetName )
			.removeData( this.widgetFullName )
			// support: jquery <1.6.3
			// http://bugs.jquery.com/ticket/9413
			.removeData( $.camelCase( this.widgetFullName ) );
		this.widget()
			.unbind( this.eventNamespace )
			.removeAttr( "aria-disabled" )
			.removeClass(
				this.widgetFullName + "-disabled " +
				"ui-state-disabled" );

		// clean up events and states
		this.bindings.unbind( this.eventNamespace );
		this.hoverable.removeClass( "ui-state-hover" );
		this.focusable.removeClass( "ui-state-focus" );
	},
	_destroy: $.noop,

	widget: function() {
		return this.element;
	},

	option: function( key, value ) {
		var options = key,
			parts,
			curOption,
			i;

		if ( arguments.length === 0 ) {
			// don't return a reference to the internal hash
			return $.widget.extend( {}, this.options );
		}

		if ( typeof key === "string" ) {
			// handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
			options = {};
			parts = key.split( "." );
			key = parts.shift();
			if ( parts.length ) {
				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
				for ( i = 0; i < parts.length - 1; i++ ) {
					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
					curOption = curOption[ parts[ i ] ];
				}
				key = parts.pop();
				if ( value === undefined ) {
					return curOption[ key ] === undefined ? null : curOption[ key ];
				}
				curOption[ key ] = value;
			} else {
				if ( value === undefined ) {
					return this.options[ key ] === undefined ? null : this.options[ key ];
				}
				options[ key ] = value;
			}
		}

		this._setOptions( options );

		return this;
	},
	_setOptions: function( options ) {
		var key;

		for ( key in options ) {
			this._setOption( key, options[ key ] );
		}

		return this;
	},
	_setOption: function( key, value ) {
		this.options[ key ] = value;

		if ( key === "disabled" ) {
			this.widget()
				.toggleClass( this.widgetFullName + "-disabled ui-state-disabled", !!value )
				.attr( "aria-disabled", value );
			this.hoverable.removeClass( "ui-state-hover" );
			this.focusable.removeClass( "ui-state-focus" );
		}

		return this;
	},

	enable: function() {
		return this._setOption( "disabled", false );
	},
	disable: function() {
		return this._setOption( "disabled", true );
	},

	_on: function( suppressDisabledCheck, element, handlers ) {
		var delegateElement,
			instance = this;

		// no suppressDisabledCheck flag, shuffle arguments
		if ( typeof suppressDisabledCheck !== "boolean" ) {
			handlers = element;
			element = suppressDisabledCheck;
			suppressDisabledCheck = false;
		}

		// no element argument, shuffle and use this.element
		if ( !handlers ) {
			handlers = element;
			element = this.element;
			delegateElement = this.widget();
		} else {
			// accept selectors, DOM elements
			element = delegateElement = $( element );
			this.bindings = this.bindings.add( element );
		}

		$.each( handlers, function( event, handler ) {
			function handlerProxy() {
				// allow widgets to customize the disabled handling
				// - disabled as an array instead of boolean
				// - disabled class as method for disabling individual parts
				if ( !suppressDisabledCheck &&
						( instance.options.disabled === true ||
							$( this ).hasClass( "ui-state-disabled" ) ) ) {
					return;
				}
				return ( typeof handler === "string" ? instance[ handler ] : handler )
					.apply( instance, arguments );
			}

			// copy the guid so direct unbinding works
			if ( typeof handler !== "string" ) {
				handlerProxy.guid = handler.guid =
					handler.guid || handlerProxy.guid || $.guid++;
			}

			var match = event.match( /^(\w+)\s*(.*)$/ ),
				eventName = match[1] + instance.eventNamespace,
				selector = match[2];
			if ( selector ) {
				delegateElement.delegate( selector, eventName, handlerProxy );
			} else {
				element.bind( eventName, handlerProxy );
			}
		});
	},

	_off: function( element, eventName ) {
		eventName = (eventName || "").split( " " ).join( this.eventNamespace + " " ) + this.eventNamespace;
		element.unbind( eventName ).undelegate( eventName );
	},

	_delay: function( handler, delay ) {
		function handlerProxy() {
			return ( typeof handler === "string" ? instance[ handler ] : handler )
				.apply( instance, arguments );
		}
		var instance = this;
		return setTimeout( handlerProxy, delay || 0 );
	},

	_hoverable: function( element ) {
		this.hoverable = this.hoverable.add( element );
		this._on( element, {
			mouseenter: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-hover" );
			},
			mouseleave: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-hover" );
			}
		});
	},

	_focusable: function( element ) {
		this.focusable = this.focusable.add( element );
		this._on( element, {
			focusin: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-focus" );
			},
			focusout: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-focus" );
			}
		});
	},

	_trigger: function( type, event, data ) {
		var prop, orig,
			callback = this.options[ type ];

		data = data || {};
		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();
		// the original event may come from any element
		// so we need to reset the target on the new event
		event.target = this.element[ 0 ];

		// copy original event properties over to the new event
		orig = event.originalEvent;
		if ( orig ) {
			for ( prop in orig ) {
				if ( !( prop in event ) ) {
					event[ prop ] = orig[ prop ];
				}
			}
		}

		this.element.trigger( event, data );
		return !( $.isFunction( callback ) &&
			callback.apply( this.element[0], [ event ].concat( data ) ) === false ||
			event.isDefaultPrevented() );
	}
};

$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
		if ( typeof options === "string" ) {
			options = { effect: options };
		}
		var hasOptions,
			effectName = !options ?
				method :
				options === true || typeof options === "number" ?
					defaultEffect :
					options.effect || defaultEffect;
		options = options || {};
		if ( typeof options === "number" ) {
			options = { duration: options };
		}
		hasOptions = !$.isEmptyObject( options );
		options.complete = callback;
		if ( options.delay ) {
			element.delay( options.delay );
		}
		if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
			element[ method ]( options );
		} else if ( effectName !== method && element[ effectName ] ) {
			element[ effectName ]( options.duration, options.easing, callback );
		} else {
			element.queue(function( next ) {
				$( this )[ method ]();
				if ( callback ) {
					callback.call( element[ 0 ] );
				}
				next();
			});
		}
	};
});

})( jQuery );

(function( $, undefined ) {

var mouseHandled = false;
$( document ).mouseup( function() {
	mouseHandled = false;
});

$.widget("ui.mouse", {
	version: "1.10.3",
	options: {
		cancel: "input,textarea,button,select,option",
		distance: 1,
		delay: 0
	},
	_mouseInit: function() {
		var that = this;

		this.element
			.bind("mousedown."+this.widgetName, function(event) {
				return that._mouseDown(event);
			})
			.bind("click."+this.widgetName, function(event) {
				if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) {
					$.removeData(event.target, that.widgetName + ".preventClickEvent");
					event.stopImmediatePropagation();
					return false;
				}
			});

		this.started = false;
	},

	// TODO: make sure destroying one instance of mouse doesn't mess with
	// other instances of mouse
	_mouseDestroy: function() {
		this.element.unbind("."+this.widgetName);
		if ( this._mouseMoveDelegate ) {
			$(document)
				.unbind("mousemove."+this.widgetName, this._mouseMoveDelegate)
				.unbind("mouseup."+this.widgetName, this._mouseUpDelegate);
		}
	},

	_mouseDown: function(event) {
		// don't let more than one widget handle mouseStart
		if( mouseHandled ) { return; }

		// we may have missed mouseup (out of window)
		(this._mouseStarted && this._mouseUp(event));

		this._mouseDownEvent = event;

		var that = this,
			btnIsLeft = (event.which === 1),
			// event.target.nodeName works around a bug in IE 8 with
			// disabled inputs (#7620)
			elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
		if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
			return true;
		}

		this.mouseDelayMet = !this.options.delay;
		if (!this.mouseDelayMet) {
			this._mouseDelayTimer = setTimeout(function() {
				that.mouseDelayMet = true;
			}, this.options.delay);
		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
			this._mouseStarted = (this._mouseStart(event) !== false);
			if (!this._mouseStarted) {
				event.preventDefault();
				return true;
			}
		}

		// Click event may never have fired (Gecko & Opera)
		if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) {
			$.removeData(event.target, this.widgetName + ".preventClickEvent");
		}

		// these delegates are required to keep context
		this._mouseMoveDelegate = function(event) {
			return that._mouseMove(event);
		};
		this._mouseUpDelegate = function(event) {
			return that._mouseUp(event);
		};
		$(document)
			.bind("mousemove."+this.widgetName, this._mouseMoveDelegate)
			.bind("mouseup."+this.widgetName, this._mouseUpDelegate);

		event.preventDefault();

		mouseHandled = true;
		return true;
	},

	_mouseMove: function(event) {
		// IE mouseup check - mouseup happened when mouse was out of window
		if ($.ui.ie && ( !document.documentMode || document.documentMode < 9 ) && !event.button) {
			return this._mouseUp(event);
		}

		if (this._mouseStarted) {
			this._mouseDrag(event);
			return event.preventDefault();
		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
			this._mouseStarted =
				(this._mouseStart(this._mouseDownEvent, event) !== false);
			(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
		}

		return !this._mouseStarted;
	},

	_mouseUp: function(event) {
		$(document)
			.unbind("mousemove."+this.widgetName, this._mouseMoveDelegate)
			.unbind("mouseup."+this.widgetName, this._mouseUpDelegate);

		if (this._mouseStarted) {
			this._mouseStarted = false;

			if (event.target === this._mouseDownEvent.target) {
				$.data(event.target, this.widgetName + ".preventClickEvent", true);
			}

			this._mouseStop(event);
		}

		return false;
	},

	_mouseDistanceMet: function(event) {
		return (Math.max(
				Math.abs(this._mouseDownEvent.pageX - event.pageX),
				Math.abs(this._mouseDownEvent.pageY - event.pageY)
			) >= this.options.distance
		);
	},

	_mouseDelayMet: function(/* event */) {
		return this.mouseDelayMet;
	},

	// These are placeholder methods, to be overriden by extending plugin
	_mouseStart: function(/* event */) {},
	_mouseDrag: function(/* event */) {},
	_mouseStop: function(/* event */) {},
	_mouseCapture: function(/* event */) { return true; }
});

})(jQuery);

(function( $, undefined ) {

$.widget("ui.draggable", $.ui.mouse, {
	version: "1.10.3",
	widgetEventPrefix: "drag",
	options: {
		addClasses: true,
		appendTo: "parent",
		axis: false,
		connectToSortable: false,
		containment: false,
		cursor: "auto",
		cursorAt: false,
		grid: false,
		handle: false,
		helper: "original",
		iframeFix: false,
		opacity: false,
		refreshPositions: false,
		revert: false,
		revertDuration: 500,
		scope: "default",
		scroll: true,
		scrollSensitivity: 20,
		scrollSpeed: 20,
		snap: false,
		snapMode: "both",
		snapTolerance: 20,
		stack: false,
		zIndex: false,

		// callbacks
		drag: null,
		start: null,
		stop: null
	},
	_create: function() {

		if (this.options.helper === "original" && !(/^(?:r|a|f)/).test(this.element.css("position"))) {
			this.element[0].style.position = "relative";
		}
		if (this.options.addClasses){
			this.element.addClass("ui-draggable");
		}
		if (this.options.disabled){
			this.element.addClass("ui-draggable-disabled");
		}

		this._mouseInit();

	},

	_destroy: function() {
		this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" );
		this._mouseDestroy();
	},

	_mouseCapture: function(event) {

		var o = this.options;

		// among others, prevent a drag on a resizable-handle
		if (this.helper || o.disabled || $(event.target).closest(".ui-resizable-handle").length > 0) {
			return false;
		}

		//Quit if we're not on a valid handle
		this.handle = this._getHandle(event);
		if (!this.handle) {
			return false;
		}

		$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {
			$("<div class='ui-draggable-iframeFix' style='background: #fff;'></div>")
			.css({
				width: this.offsetWidth+"px", height: this.offsetHeight+"px",
				position: "absolute", opacity: "0.001", zIndex: 1000
			})
			.css($(this).offset())
			.appendTo("body");
		});

		return true;

	},

	_mouseStart: function(event) {

		var o = this.options;

		//Create and append the visible helper
		this.helper = this._createHelper(event);

		this.helper.addClass("ui-draggable-dragging");

		//Cache the helper size
		this._cacheHelperProportions();

		//If ddmanager is used for droppables, set the global draggable
		if($.ui.ddmanager) {
			$.ui.ddmanager.current = this;
		}

		/*
		 * - Position generation -
		 * This block generates everything position related - it's the core of draggables.
		 */

		//Cache the margins of the original element
		this._cacheMargins();

		//Store the helper's css position
		this.cssPosition = this.helper.css( "position" );
		this.scrollParent = this.helper.scrollParent();
		this.offsetParent = this.helper.offsetParent();
		this.offsetParentCssPosition = this.offsetParent.css( "position" );

		//The element's absolute position on the page minus margins
		this.offset = this.positionAbs = this.element.offset();
		this.offset = {
			top: this.offset.top - this.margins.top,
			left: this.offset.left - this.margins.left
		};

		//Reset scroll cache
		this.offset.scroll = false;

		$.extend(this.offset, {
			click: { //Where the click happened, relative to the element
				left: event.pageX - this.offset.left,
				top: event.pageY - this.offset.top
			},
			parent: this._getParentOffset(),
			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
		});

		//Generate the original position
		this.originalPosition = this.position = this._generatePosition(event);
		this.originalPageX = event.pageX;
		this.originalPageY = event.pageY;

		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
		(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));

		//Set a containment if given in the options
		this._setContainment();

		//Trigger event + callbacks
		if(this._trigger("start", event) === false) {
			this._clear();
			return false;
		}

		//Recache the helper size
		this._cacheHelperProportions();

		//Prepare the droppable offsets
		if ($.ui.ddmanager && !o.dropBehaviour) {
			$.ui.ddmanager.prepareOffsets(this, event);
		}


		this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position

		//If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003)
		if ( $.ui.ddmanager ) {
			$.ui.ddmanager.dragStart(this, event);
		}

		return true;
	},

	_mouseDrag: function(event, noPropagation) {
		// reset any necessary cached properties (see #5009)
		if ( this.offsetParentCssPosition === "fixed" ) {
			this.offset.parent = this._getParentOffset();
		}

		//Compute the helpers position
		this.position = this._generatePosition(event);
		this.positionAbs = this._convertPositionTo("absolute");

		//Call plugins and callbacks and use the resulting position if something is returned
		if (!noPropagation) {
			var ui = this._uiHash();
			if(this._trigger("drag", event, ui) === false) {
				this._mouseUp({});
				return false;
			}
			this.position = ui.position;
		}

		if(!this.options.axis || this.options.axis !== "y") {
			this.helper[0].style.left = this.position.left+"px";
		}
		if(!this.options.axis || this.options.axis !== "x") {
			this.helper[0].style.top = this.position.top+"px";
		}
		if($.ui.ddmanager) {
			$.ui.ddmanager.drag(this, event);
		}

		return false;
	},

	_mouseStop: function(event) {

		//If we are using droppables, inform the manager about the drop
		var that = this,
			dropped = false;
		if ($.ui.ddmanager && !this.options.dropBehaviour) {
			dropped = $.ui.ddmanager.drop(this, event);
		}

		//if a drop comes from outside (a sortable)
		if(this.dropped) {
			dropped = this.dropped;
			this.dropped = false;
		}

		//if the original element is no longer in the DOM don't bother to continue (see #8269)
		if ( this.options.helper === "original" && !$.contains( this.element[ 0 ].ownerDocument, this.element[ 0 ] ) ) {
			return false;
		}

		if((this.options.revert === "invalid" && !dropped) || (this.options.revert === "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {
				if(that._trigger("stop", event) !== false) {
					that._clear();
				}
			});
		} else {
			if(this._trigger("stop", event) !== false) {
				this._clear();
			}
		}

		return false;
	},

	_mouseUp: function(event) {
		//Remove frame helpers
		$("div.ui-draggable-iframeFix").each(function() {
			this.parentNode.removeChild(this);
		});

		//If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003)
		if( $.ui.ddmanager ) {
			$.ui.ddmanager.dragStop(this, event);
		}

		return $.ui.mouse.prototype._mouseUp.call(this, event);
	},

	cancel: function() {

		if(this.helper.is(".ui-draggable-dragging")) {
			this._mouseUp({});
		} else {
			this._clear();
		}

		return this;

	},

	_getHandle: function(event) {
		return this.options.handle ?
			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
			true;
	},

	_createHelper: function(event) {

		var o = this.options,
			helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper === "clone" ? this.element.clone().removeAttr("id") : this.element);

		if(!helper.parents("body").length) {
			helper.appendTo((o.appendTo === "parent" ? this.element[0].parentNode : o.appendTo));
		}

		if(helper[0] !== this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) {
			helper.css("position", "absolute");
		}

		return helper;

	},

	_adjustOffsetFromHelper: function(obj) {
		if (typeof obj === "string") {
			obj = obj.split(" ");
		}
		if ($.isArray(obj)) {
			obj = {left: +obj[0], top: +obj[1] || 0};
		}
		if ("left" in obj) {
			this.offset.click.left = obj.left + this.margins.left;
		}
		if ("right" in obj) {
			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
		}
		if ("top" in obj) {
			this.offset.click.top = obj.top + this.margins.top;
		}
		if ("bottom" in obj) {
			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
		}
	},

	_getParentOffset: function() {

		//Get the offsetParent and cache its position
		var po = this.offsetParent.offset();

		// This is a special case where we need to modify a offset calculated on start, since the following happened:
		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
		if(this.cssPosition === "absolute" && this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) {
			po.left += this.scrollParent.scrollLeft();
			po.top += this.scrollParent.scrollTop();
		}

		//This needs to be actually done for all browsers, since pageX/pageY includes this information
		//Ugly IE fix
		if((this.offsetParent[0] === document.body) ||
			(this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() === "html" && $.ui.ie)) {
			po = { top: 0, left: 0 };
		}

		return {
			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
		};

	},

	_getRelativeOffset: function() {

		if(this.cssPosition === "relative") {
			var p = this.element.position();
			return {
				top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
				left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
			};
		} else {
			return { top: 0, left: 0 };
		}

	},

	_cacheMargins: function() {
		this.margins = {
			left: (parseInt(this.element.css("marginLeft"),10) || 0),
			top: (parseInt(this.element.css("marginTop"),10) || 0),
			right: (parseInt(this.element.css("marginRight"),10) || 0),
			bottom: (parseInt(this.element.css("marginBottom"),10) || 0)
		};
	},

	_cacheHelperProportions: function() {
		this.helperProportions = {
			width: this.helper.outerWidth(),
			height: this.helper.outerHeight()
		};
	},

	_setContainment: function() {

		var over, c, ce,
			o = this.options;

		if ( !o.containment ) {
			this.containment = null;
			return;
		}

		if ( o.containment === "window" ) {
			this.containment = [
				$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
				$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
				$( window ).scrollLeft() + $( window ).width() - this.helperProportions.width - this.margins.left,
				$( window ).scrollTop() + ( $( window ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top
			];
			return;
		}

		if ( o.containment === "document") {
			this.containment = [
				0,
				0,
				$( document ).width() - this.helperProportions.width - this.margins.left,
				( $( document ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top
			];
			return;
		}

		if ( o.containment.constructor === Array ) {
			this.containment = o.containment;
			return;
		}

		if ( o.containment === "parent" ) {
			o.containment = this.helper[ 0 ].parentNode;
		}

		c = $( o.containment );
		ce = c[ 0 ];

		if( !ce ) {
			return;
		}

		over = c.css( "overflow" ) !== "hidden";

		this.containment = [
			( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
			( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ) ,
			( over ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) - ( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) - this.helperProportions.width - this.margins.left - this.margins.right,
			( over ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) - ( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) - this.helperProportions.height - this.margins.top  - this.margins.bottom
		];
		this.relative_container = c;
	},

	_convertPositionTo: function(d, pos) {

		if(!pos) {
			pos = this.position;
		}

		var mod = d === "absolute" ? 1 : -1,
			scroll = this.cssPosition === "absolute" && !( this.scrollParent[ 0 ] !== document && $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? this.offsetParent : this.scrollParent;

		//Cache the scroll
		if (!this.offset.scroll) {
			this.offset.scroll = {top : scroll.scrollTop(), left : scroll.scrollLeft()};
		}

		return {
			top: (
				pos.top	+																// The absolute mouse position
				this.offset.relative.top * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.top * mod -										// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : this.offset.scroll.top ) * mod )
			),
			left: (
				pos.left +																// The absolute mouse position
				this.offset.relative.left * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.left * mod	-										// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : this.offset.scroll.left ) * mod )
			)
		};

	},

	_generatePosition: function(event) {

		var containment, co, top, left,
			o = this.options,
			scroll = this.cssPosition === "absolute" && !( this.scrollParent[ 0 ] !== document && $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? this.offsetParent : this.scrollParent,
			pageX = event.pageX,
			pageY = event.pageY;

		//Cache the scroll
		if (!this.offset.scroll) {
			this.offset.scroll = {top : scroll.scrollTop(), left : scroll.scrollLeft()};
		}

		/*
		 * - Position constraining -
		 * Constrain the position to a mix of grid, containment.
		 */

		// If we are not dragging yet, we won't check for options
		if ( this.originalPosition ) {
			if ( this.containment ) {
				if ( this.relative_container ){
					co = this.relative_container.offset();
					containment = [
						this.containment[ 0 ] + co.left,
						this.containment[ 1 ] + co.top,
						this.containment[ 2 ] + co.left,
						this.containment[ 3 ] + co.top
					];
				}
				else {
					containment = this.containment;
				}

				if(event.pageX - this.offset.click.left < containment[0]) {
					pageX = containment[0] + this.offset.click.left;
				}
				if(event.pageY - this.offset.click.top < containment[1]) {
					pageY = containment[1] + this.offset.click.top;
				}
				if(event.pageX - this.offset.click.left > containment[2]) {
					pageX = containment[2] + this.offset.click.left;
				}
				if(event.pageY - this.offset.click.top > containment[3]) {
					pageY = containment[3] + this.offset.click.top;
				}
			}

			if(o.grid) {
				//Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950)
				top = o.grid[1] ? this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1] : this.originalPageY;
				pageY = containment ? ((top - this.offset.click.top >= containment[1] || top - this.offset.click.top > containment[3]) ? top : ((top - this.offset.click.top >= containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

				left = o.grid[0] ? this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0] : this.originalPageX;
				pageX = containment ? ((left - this.offset.click.left >= containment[0] || left - this.offset.click.left > containment[2]) ? left : ((left - this.offset.click.left >= containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
			}

		}

		return {
			top: (
				pageY -																	// The absolute mouse position
				this.offset.click.top	-												// Click offset (relative to the element)
				this.offset.relative.top -												// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.top +												// The offsetParent's offset without borders (offset + border)
				( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : this.offset.scroll.top )
			),
			left: (
				pageX -																	// The absolute mouse position
				this.offset.click.left -												// Click offset (relative to the element)
				this.offset.relative.left -												// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.left +												// The offsetParent's offset without borders (offset + border)
				( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : this.offset.scroll.left )
			)
		};

	},

	_clear: function() {
		this.helper.removeClass("ui-draggable-dragging");
		if(this.helper[0] !== this.element[0] && !this.cancelHelperRemoval) {
			this.helper.remove();
		}
		this.helper = null;
		this.cancelHelperRemoval = false;
	},

	// From now on bulk stuff - mainly helpers

	_trigger: function(type, event, ui) {
		ui = ui || this._uiHash();
		$.ui.plugin.call(this, type, [event, ui]);
		//The absolute position has to be recalculated after plugins
		if(type === "drag") {
			this.positionAbs = this._convertPositionTo("absolute");
		}
		return $.Widget.prototype._trigger.call(this, type, event, ui);
	},

	plugins: {},

	_uiHash: function() {
		return {
			helper: this.helper,
			position: this.position,
			originalPosition: this.originalPosition,
			offset: this.positionAbs
		};
	}

});

$.ui.plugin.add("draggable", "connectToSortable", {
	start: function(event, ui) {

		var inst = $(this).data("ui-draggable"), o = inst.options,
			uiSortable = $.extend({}, ui, { item: inst.element });
		inst.sortables = [];
		$(o.connectToSortable).each(function() {
			var sortable = $.data(this, "ui-sortable");
			if (sortable && !sortable.options.disabled) {
				inst.sortables.push({
					instance: sortable,
					shouldRevert: sortable.options.revert
				});
				sortable.refreshPositions();	// Call the sortable's refreshPositions at drag start to refresh the containerCache since the sortable container cache is used in drag and needs to be up to date (this will ensure it's initialised as well as being kept in step with any changes that might have happened on the page).
				sortable._trigger("activate", event, uiSortable);
			}
		});

	},
	stop: function(event, ui) {

		//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
		var inst = $(this).data("ui-draggable"),
			uiSortable = $.extend({}, ui, { item: inst.element });

		$.each(inst.sortables, function() {
			if(this.instance.isOver) {

				this.instance.isOver = 0;

				inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance
				this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)

				//The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: "valid/invalid"
				if(this.shouldRevert) {
					this.instance.options.revert = this.shouldRevert;
				}

				//Trigger the stop of the sortable
				this.instance._mouseStop(event);

				this.instance.options.helper = this.instance.options._helper;

				//If the helper has been the original item, restore properties in the sortable
				if(inst.options.helper === "original") {
					this.instance.currentItem.css({ top: "auto", left: "auto" });
				}

			} else {
				this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance
				this.instance._trigger("deactivate", event, uiSortable);
			}

		});

	},
	drag: function(event, ui) {

		var inst = $(this).data("ui-draggable"), that = this;

		$.each(inst.sortables, function() {

			var innermostIntersecting = false,
				thisSortable = this;

			//Copy over some variables to allow calling the sortable's native _intersectsWith
			this.instance.positionAbs = inst.positionAbs;
			this.instance.helperProportions = inst.helperProportions;
			this.instance.offset.click = inst.offset.click;

			if(this.instance._intersectsWith(this.instance.containerCache)) {
				innermostIntersecting = true;
				$.each(inst.sortables, function () {
					this.instance.positionAbs = inst.positionAbs;
					this.instance.helperProportions = inst.helperProportions;
					this.instance.offset.click = inst.offset.click;
					if (this !== thisSortable &&
						this.instance._intersectsWith(this.instance.containerCache) &&
						$.contains(thisSortable.instance.element[0], this.instance.element[0])
					) {
						innermostIntersecting = false;
					}
					return innermostIntersecting;
				});
			}


			if(innermostIntersecting) {
				//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once
				if(!this.instance.isOver) {

					this.instance.isOver = 1;
					//Now we fake the start of dragging for the sortable instance,
					//by cloning the list group item, appending it to the sortable and using it as inst.currentItem
					//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)
					this.instance.currentItem = $(that).clone().removeAttr("id").appendTo(this.instance.element).data("ui-sortable-item", true);
					this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it
					this.instance.options.helper = function() { return ui.helper[0]; };

					event.target = this.instance.currentItem[0];
					this.instance._mouseCapture(event, true);
					this.instance._mouseStart(event, true, true);

					//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes
					this.instance.offset.click.top = inst.offset.click.top;
					this.instance.offset.click.left = inst.offset.click.left;
					this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left;
					this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top;

					inst._trigger("toSortable", event);
					inst.dropped = this.instance.element; //draggable revert needs that
					//hack so receive/update callbacks work (mostly)
					inst.currentItem = inst.element;
					this.instance.fromOutside = inst;

				}

				//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable
				if(this.instance.currentItem) {
					this.instance._mouseDrag(event);
				}

			} else {

				//If it doesn't intersect with the sortable, and it intersected before,
				//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval
				if(this.instance.isOver) {

					this.instance.isOver = 0;
					this.instance.cancelHelperRemoval = true;

					//Prevent reverting on this forced stop
					this.instance.options.revert = false;

					// The out event needs to be triggered independently
					this.instance._trigger("out", event, this.instance._uiHash(this.instance));

					this.instance._mouseStop(event, true);
					this.instance.options.helper = this.instance.options._helper;

					//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size
					this.instance.currentItem.remove();
					if(this.instance.placeholder) {
						this.instance.placeholder.remove();
					}

					inst._trigger("fromSortable", event);
					inst.dropped = false; //draggable revert needs that
				}

			}

		});

	}
});

$.ui.plugin.add("draggable", "cursor", {
	start: function() {
		var t = $("body"), o = $(this).data("ui-draggable").options;
		if (t.css("cursor")) {
			o._cursor = t.css("cursor");
		}
		t.css("cursor", o.cursor);
	},
	stop: function() {
		var o = $(this).data("ui-draggable").options;
		if (o._cursor) {
			$("body").css("cursor", o._cursor);
		}
	}
});

$.ui.plugin.add("draggable", "opacity", {
	start: function(event, ui) {
		var t = $(ui.helper), o = $(this).data("ui-draggable").options;
		if(t.css("opacity")) {
			o._opacity = t.css("opacity");
		}
		t.css("opacity", o.opacity);
	},
	stop: function(event, ui) {
		var o = $(this).data("ui-draggable").options;
		if(o._opacity) {
			$(ui.helper).css("opacity", o._opacity);
		}
	}
});

$.ui.plugin.add("draggable", "scroll", {
	start: function() {
		var i = $(this).data("ui-draggable");
		if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") {
			i.overflowOffset = i.scrollParent.offset();
		}
	},
	drag: function( event ) {

		var i = $(this).data("ui-draggable"), o = i.options, scrolled = false;

		if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") {

			if(!o.axis || o.axis !== "x") {
				if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) {
					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed;
				} else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity) {
					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed;
				}
			}

			if(!o.axis || o.axis !== "y") {
				if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) {
					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed;
				} else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity) {
					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed;
				}
			}

		} else {

			if(!o.axis || o.axis !== "x") {
				if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) {
					scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
				} else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) {
					scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
				}
			}

			if(!o.axis || o.axis !== "y") {
				if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) {
					scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
				} else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) {
					scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
				}
			}

		}

		if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) {
			$.ui.ddmanager.prepareOffsets(i, event);
		}

	}
});

$.ui.plugin.add("draggable", "snap", {
	start: function() {

		var i = $(this).data("ui-draggable"),
			o = i.options;

		i.snapElements = [];

		$(o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap).each(function() {
			var $t = $(this),
				$o = $t.offset();
			if(this !== i.element[0]) {
				i.snapElements.push({
					item: this,
					width: $t.outerWidth(), height: $t.outerHeight(),
					top: $o.top, left: $o.left
				});
			}
		});

	},
	drag: function(event, ui) {

		var ts, bs, ls, rs, l, r, t, b, i, first,
			inst = $(this).data("ui-draggable"),
			o = inst.options,
			d = o.snapTolerance,
			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;

		for (i = inst.snapElements.length - 1; i >= 0; i--){

			l = inst.snapElements[i].left;
			r = l + inst.snapElements[i].width;
			t = inst.snapElements[i].top;
			b = t + inst.snapElements[i].height;

			if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d || !$.contains( inst.snapElements[ i ].item.ownerDocument, inst.snapElements[ i ].item ) ) {
				if(inst.snapElements[i].snapping) {
					(inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
				}
				inst.snapElements[i].snapping = false;
				continue;
			}

			if(o.snapMode !== "inner") {
				ts = Math.abs(t - y2) <= d;
				bs = Math.abs(b - y1) <= d;
				ls = Math.abs(l - x2) <= d;
				rs = Math.abs(r - x1) <= d;
				if(ts) {
					ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top;
				}
				if(bs) {
					ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top;
				}
				if(ls) {
					ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left;
				}
				if(rs) {
					ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left;
				}
			}

			first = (ts || bs || ls || rs);

			if(o.snapMode !== "outer") {
				ts = Math.abs(t - y1) <= d;
				bs = Math.abs(b - y2) <= d;
				ls = Math.abs(l - x1) <= d;
				rs = Math.abs(r - x2) <= d;
				if(ts) {
					ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top;
				}
				if(bs) {
					ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top;
				}
				if(ls) {
					ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left;
				}
				if(rs) {
					ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left;
				}
			}

			if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first)) {
				(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
			}
			inst.snapElements[i].snapping = (ts || bs || ls || rs || first);

		}

	}
});

$.ui.plugin.add("draggable", "stack", {
	start: function() {
		var min,
			o = this.data("ui-draggable").options,
			group = $.makeArray($(o.stack)).sort(function(a,b) {
				return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0);
			});

		if (!group.length) { return; }

		min = parseInt($(group[0]).css("zIndex"), 10) || 0;
		$(group).each(function(i) {
			$(this).css("zIndex", min + i);
		});
		this.css("zIndex", (min + group.length));
	}
});

$.ui.plugin.add("draggable", "zIndex", {
	start: function(event, ui) {
		var t = $(ui.helper), o = $(this).data("ui-draggable").options;
		if(t.css("zIndex")) {
			o._zIndex = t.css("zIndex");
		}
		t.css("zIndex", o.zIndex);
	},
	stop: function(event, ui) {
		var o = $(this).data("ui-draggable").options;
		if(o._zIndex) {
			$(ui.helper).css("zIndex", o._zIndex);
		}
	}
});

})(jQuery);

(function( $, undefined ) {

function isOverAxis( x, reference, size ) {
	return ( x > reference ) && ( x < ( reference + size ) );
}

$.widget("ui.droppable", {
	version: "1.10.3",
	widgetEventPrefix: "drop",
	options: {
		accept: "*",
		activeClass: false,
		addClasses: true,
		greedy: false,
		hoverClass: false,
		scope: "default",
		tolerance: "intersect",

		// callbacks
		activate: null,
		deactivate: null,
		drop: null,
		out: null,
		over: null
	},
	_create: function() {

		var o = this.options,
			accept = o.accept;

		this.isover = false;
		this.isout = true;

		this.accept = $.isFunction(accept) ? accept : function(d) {
			return d.is(accept);
		};

		//Store the droppable's proportions
		this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight };

		// Add the reference and positions to the manager
		$.ui.ddmanager.droppables[o.scope] = $.ui.ddmanager.droppables[o.scope] || [];
		$.ui.ddmanager.droppables[o.scope].push(this);

		(o.addClasses && this.element.addClass("ui-droppable"));

	},

	_destroy: function() {
		var i = 0,
			drop = $.ui.ddmanager.droppables[this.options.scope];

		for ( ; i < drop.length; i++ ) {
			if ( drop[i] === this ) {
				drop.splice(i, 1);
			}
		}

		this.element.removeClass("ui-droppable ui-droppable-disabled");
	},

	_setOption: function(key, value) {

		if(key === "accept") {
			this.accept = $.isFunction(value) ? value : function(d) {
				return d.is(value);
			};
		}
		$.Widget.prototype._setOption.apply(this, arguments);
	},

	_activate: function(event) {
		var draggable = $.ui.ddmanager.current;
		if(this.options.activeClass) {
			this.element.addClass(this.options.activeClass);
		}
		if(draggable){
			this._trigger("activate", event, this.ui(draggable));
		}
	},

	_deactivate: function(event) {
		var draggable = $.ui.ddmanager.current;
		if(this.options.activeClass) {
			this.element.removeClass(this.options.activeClass);
		}
		if(draggable){
			this._trigger("deactivate", event, this.ui(draggable));
		}
	},

	_over: function(event) {

		var draggable = $.ui.ddmanager.current;

		// Bail if draggable and droppable are same element
		if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) {
			return;
		}

		if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
			if(this.options.hoverClass) {
				this.element.addClass(this.options.hoverClass);
			}
			this._trigger("over", event, this.ui(draggable));
		}

	},

	_out: function(event) {

		var draggable = $.ui.ddmanager.current;

		// Bail if draggable and droppable are same element
		if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) {
			return;
		}

		if (this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
			if(this.options.hoverClass) {
				this.element.removeClass(this.options.hoverClass);
			}
			this._trigger("out", event, this.ui(draggable));
		}

	},

	_drop: function(event,custom) {

		var draggable = custom || $.ui.ddmanager.current,
			childrenIntersection = false;

		// Bail if draggable and droppable are same element
		if (!draggable || (draggable.currentItem || draggable.element)[0] === this.element[0]) {
			return false;
		}

		this.element.find(":data(ui-droppable)").not(".ui-draggable-dragging").each(function() {
			var inst = $.data(this, "ui-droppable");
			if(
				inst.options.greedy &&
				!inst.options.disabled &&
				inst.options.scope === draggable.options.scope &&
				inst.accept.call(inst.element[0], (draggable.currentItem || draggable.element)) &&
				$.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)
			) { childrenIntersection = true; return false; }
		});
		if(childrenIntersection) {
			return false;
		}

		if(this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
			if(this.options.activeClass) {
				this.element.removeClass(this.options.activeClass);
			}
			if(this.options.hoverClass) {
				this.element.removeClass(this.options.hoverClass);
			}
			this._trigger("drop", event, this.ui(draggable));
			return this.element;
		}

		return false;

	},

	ui: function(c) {
		return {
			draggable: (c.currentItem || c.element),
			helper: c.helper,
			position: c.position,
			offset: c.positionAbs
		};
	}

});

$.ui.intersect = function(draggable, droppable, toleranceMode) {

	if (!droppable.offset) {
		return false;
	}

	var draggableLeft, draggableTop,
		x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,
		y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height,
		l = droppable.offset.left, r = l + droppable.proportions.width,
		t = droppable.offset.top, b = t + droppable.proportions.height;

	switch (toleranceMode) {
		case "fit":
			return (l <= x1 && x2 <= r && t <= y1 && y2 <= b);
		case "intersect":
			return (l < x1 + (draggable.helperProportions.width / 2) && // Right Half
				x2 - (draggable.helperProportions.width / 2) < r && // Left Half
				t < y1 + (draggable.helperProportions.height / 2) && // Bottom Half
				y2 - (draggable.helperProportions.height / 2) < b ); // Top Half
		case "pointer":
			draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left);
			draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top);
			return isOverAxis( draggableTop, t, droppable.proportions.height ) && isOverAxis( draggableLeft, l, droppable.proportions.width );
		case "touch":
			return (
				(y1 >= t && y1 <= b) ||	// Top edge touching
				(y2 >= t && y2 <= b) ||	// Bottom edge touching
				(y1 < t && y2 > b)		// Surrounded vertically
			) && (
				(x1 >= l && x1 <= r) ||	// Left edge touching
				(x2 >= l && x2 <= r) ||	// Right edge touching
				(x1 < l && x2 > r)		// Surrounded horizontally
			);
		default:
			return false;
		}

};

/*
	This manager tracks offsets of draggables and droppables
*/
$.ui.ddmanager = {
	current: null,
	droppables: { "default": [] },
	prepareOffsets: function(t, event) {

		var i, j,
			m = $.ui.ddmanager.droppables[t.options.scope] || [],
			type = event ? event.type : null, // workaround for #2317
			list = (t.currentItem || t.element).find(":data(ui-droppable)").addBack();

		droppablesLoop: for (i = 0; i < m.length; i++) {

			//No disabled and non-accepted
			if(m[i].options.disabled || (t && !m[i].accept.call(m[i].element[0],(t.currentItem || t.element)))) {
				continue;
			}

			// Filter out elements in the current dragged item
			for (j=0; j < list.length; j++) {
				if(list[j] === m[i].element[0]) {
					m[i].proportions.height = 0;
					continue droppablesLoop;
				}
			}

			m[i].visible = m[i].element.css("display") !== "none";
			if(!m[i].visible) {
				continue;
			}

			//Activate the droppable if used directly from draggables
			if(type === "mousedown") {
				m[i]._activate.call(m[i], event);
			}

			m[i].offset = m[i].element.offset();
			m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight };

		}

	},
	drop: function(draggable, event) {

		var dropped = false;
		// Create a copy of the droppables in case the list changes during the drop (#9116)
		$.each(($.ui.ddmanager.droppables[draggable.options.scope] || []).slice(), function() {

			if(!this.options) {
				return;
			}
			if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance)) {
				dropped = this._drop.call(this, event) || dropped;
			}

			if (!this.options.disabled && this.visible && this.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
				this.isout = true;
				this.isover = false;
				this._deactivate.call(this, event);
			}

		});
		return dropped;

	},
	dragStart: function( draggable, event ) {
		//Listen for scrolling so that if the dragging causes scrolling the position of the droppables can be recalculated (see #5003)
		draggable.element.parentsUntil( "body" ).bind( "scroll.droppable", function() {
			if( !draggable.options.refreshPositions ) {
				$.ui.ddmanager.prepareOffsets( draggable, event );
			}
		});
	},
	drag: function(draggable, event) {

		//If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.
		if(draggable.options.refreshPositions) {
			$.ui.ddmanager.prepareOffsets(draggable, event);
		}

		//Run through all droppables and check their positions based on specific tolerance options
		$.each($.ui.ddmanager.droppables[draggable.options.scope] || [], function() {

			if(this.options.disabled || this.greedyChild || !this.visible) {
				return;
			}

			var parentInstance, scope, parent,
				intersects = $.ui.intersect(draggable, this, this.options.tolerance),
				c = !intersects && this.isover ? "isout" : (intersects && !this.isover ? "isover" : null);
			if(!c) {
				return;
			}

			if (this.options.greedy) {
				// find droppable parents with same scope
				scope = this.options.scope;
				parent = this.element.parents(":data(ui-droppable)").filter(function () {
					return $.data(this, "ui-droppable").options.scope === scope;
				});

				if (parent.length) {
					parentInstance = $.data(parent[0], "ui-droppable");
					parentInstance.greedyChild = (c === "isover");
				}
			}

			// we just moved into a greedy child
			if (parentInstance && c === "isover") {
				parentInstance.isover = false;
				parentInstance.isout = true;
				parentInstance._out.call(parentInstance, event);
			}

			this[c] = true;
			this[c === "isout" ? "isover" : "isout"] = false;
			this[c === "isover" ? "_over" : "_out"].call(this, event);

			// we just moved out of a greedy child
			if (parentInstance && c === "isout") {
				parentInstance.isout = false;
				parentInstance.isover = true;
				parentInstance._over.call(parentInstance, event);
			}
		});

	},
	dragStop: function( draggable, event ) {
		draggable.element.parentsUntil( "body" ).unbind( "scroll.droppable" );
		//Call prepareOffsets one final time since IE does not fire return scroll events when overflow was caused by drag (see #5003)
		if( !draggable.options.refreshPositions ) {
			$.ui.ddmanager.prepareOffsets( draggable, event );
		}
	}
};

})(jQuery);

(function( $, undefined ) {

function num(v) {
	return parseInt(v, 10) || 0;
}

function isNumber(value) {
	return !isNaN(parseInt(value, 10));
}

$.widget("ui.resizable", $.ui.mouse, {
	version: "1.10.3",
	widgetEventPrefix: "resize",
	options: {
		alsoResize: false,
		animate: false,
		animateDuration: "slow",
		animateEasing: "swing",
		aspectRatio: false,
		autoHide: false,
		containment: false,
		ghost: false,
		grid: false,
		handles: "e,s,se",
		helper: false,
		maxHeight: null,
		maxWidth: null,
		minHeight: 10,
		minWidth: 10,
		// See #7960
		zIndex: 90,

		// callbacks
		resize: null,
		start: null,
		stop: null
	},
	_create: function() {

		var n, i, handle, axis, hname,
			that = this,
			o = this.options;
		this.element.addClass("ui-resizable");

		$.extend(this, {
			_aspectRatio: !!(o.aspectRatio),
			aspectRatio: o.aspectRatio,
			originalElement: this.element,
			_proportionallyResizeElements: [],
			_helper: o.helper || o.ghost || o.animate ? o.helper || "ui-resizable-helper" : null
		});

		//Wrap the element if it cannot hold child nodes
		if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {

			//Create a wrapper element and set the wrapper to the new current internal element
			this.element.wrap(
				$("<div class='ui-wrapper' style='overflow: hidden;'></div>").css({
					position: this.element.css("position"),
					width: this.element.outerWidth(),
					height: this.element.outerHeight(),
					top: this.element.css("top"),
					left: this.element.css("left")
				})
			);

			//Overwrite the original this.element
			this.element = this.element.parent().data(
				"ui-resizable", this.element.data("ui-resizable")
			);

			this.elementIsWrapper = true;

			//Move margins to the wrapper
			this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
			this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});

			//Prevent Safari textarea resize
			this.originalResizeStyle = this.originalElement.css("resize");
			this.originalElement.css("resize", "none");

			//Push the actual element to our proportionallyResize internal array
			this._proportionallyResizeElements.push(this.originalElement.css({ position: "static", zoom: 1, display: "block" }));

			// avoid IE jump (hard set the margin)
			this.originalElement.css({ margin: this.originalElement.css("margin") });

			// fix handlers offset
			this._proportionallyResize();

		}

		this.handles = o.handles || (!$(".ui-resizable-handle", this.element).length ? "e,s,se" : { n: ".ui-resizable-n", e: ".ui-resizable-e", s: ".ui-resizable-s", w: ".ui-resizable-w", se: ".ui-resizable-se", sw: ".ui-resizable-sw", ne: ".ui-resizable-ne", nw: ".ui-resizable-nw" });
		if(this.handles.constructor === String) {

			if ( this.handles === "all") {
				this.handles = "n,e,s,w,se,sw,ne,nw";
			}

			n = this.handles.split(",");
			this.handles = {};

			for(i = 0; i < n.length; i++) {

				handle = $.trim(n[i]);
				hname = "ui-resizable-"+handle;
				axis = $("<div class='ui-resizable-handle " + hname + "'></div>");

				// Apply zIndex to all handles - see #7960
				axis.css({ zIndex: o.zIndex });

				//TODO : What's going on here?
				if ("se" === handle) {
					axis.addClass("ui-icon ui-icon-gripsmall-diagonal-se");
				}

				//Insert into internal handles object and append to element
				this.handles[handle] = ".ui-resizable-"+handle;
				this.element.append(axis);
			}

		}

		this._renderAxis = function(target) {

			var i, axis, padPos, padWrapper;

			target = target || this.element;

			for(i in this.handles) {

				if(this.handles[i].constructor === String) {
					this.handles[i] = $(this.handles[i], this.element).show();
				}

				//Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
				if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {

					axis = $(this.handles[i], this.element);

					//Checking the correct pad and border
					padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();

					//The padding type i have to apply...
					padPos = [ "padding",
						/ne|nw|n/.test(i) ? "Top" :
						/se|sw|s/.test(i) ? "Bottom" :
						/^e$/.test(i) ? "Right" : "Left" ].join("");

					target.css(padPos, padWrapper);

					this._proportionallyResize();

				}

				//TODO: What's that good for? There's not anything to be executed left
				if(!$(this.handles[i]).length) {
					continue;
				}
			}
		};

		//TODO: make renderAxis a prototype function
		this._renderAxis(this.element);

		this._handles = $(".ui-resizable-handle", this.element)
			.disableSelection();

		//Matching axis name
		this._handles.mouseover(function() {
			if (!that.resizing) {
				if (this.className) {
					axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
				}
				//Axis, default = se
				that.axis = axis && axis[1] ? axis[1] : "se";
			}
		});

		//If we want to auto hide the elements
		if (o.autoHide) {
			this._handles.hide();
			$(this.element)
				.addClass("ui-resizable-autohide")
				.mouseenter(function() {
					if (o.disabled) {
						return;
					}
					$(this).removeClass("ui-resizable-autohide");
					that._handles.show();
				})
				.mouseleave(function(){
					if (o.disabled) {
						return;
					}
					if (!that.resizing) {
						$(this).addClass("ui-resizable-autohide");
						that._handles.hide();
					}
				});
		}

		//Initialize the mouse interaction
		this._mouseInit();

	},

	_destroy: function() {

		this._mouseDestroy();

		var wrapper,
			_destroy = function(exp) {
				$(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
					.removeData("resizable").removeData("ui-resizable").unbind(".resizable").find(".ui-resizable-handle").remove();
			};

		//TODO: Unwrap at same DOM position
		if (this.elementIsWrapper) {
			_destroy(this.element);
			wrapper = this.element;
			this.originalElement.css({
				position: wrapper.css("position"),
				width: wrapper.outerWidth(),
				height: wrapper.outerHeight(),
				top: wrapper.css("top"),
				left: wrapper.css("left")
			}).insertAfter( wrapper );
			wrapper.remove();
		}

		this.originalElement.css("resize", this.originalResizeStyle);
		_destroy(this.originalElement);

		return this;
	},

	_mouseCapture: function(event) {
		var i, handle,
			capture = false;

		for (i in this.handles) {
			handle = $(this.handles[i])[0];
			if (handle === event.target || $.contains(handle, event.target)) {
				capture = true;
			}
		}

		return !this.options.disabled && capture;
	},

	_mouseStart: function(event) {

		var curleft, curtop, cursor,
			o = this.options,
			iniPos = this.element.position(),
			el = this.element;

		this.resizing = true;

		// bugfix for http://dev.jquery.com/ticket/1749
		if ( (/absolute/).test( el.css("position") ) ) {
			el.css({ position: "absolute", top: el.css("top"), left: el.css("left") });
		} else if (el.is(".ui-draggable")) {
			el.css({ position: "absolute", top: iniPos.top, left: iniPos.left });
		}

		this._renderProxy();

		curleft = num(this.helper.css("left"));
		curtop = num(this.helper.css("top"));

		if (o.containment) {
			curleft += $(o.containment).scrollLeft() || 0;
			curtop += $(o.containment).scrollTop() || 0;
		}

		//Store needed variables
		this.offset = this.helper.offset();
		this.position = { left: curleft, top: curtop };
		this.size = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
		this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
		this.originalPosition = { left: curleft, top: curtop };
		this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
		this.originalMousePosition = { left: event.pageX, top: event.pageY };

		//Aspect Ratio
		this.aspectRatio = (typeof o.aspectRatio === "number") ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);

		cursor = $(".ui-resizable-" + this.axis).css("cursor");
		$("body").css("cursor", cursor === "auto" ? this.axis + "-resize" : cursor);

		el.addClass("ui-resizable-resizing");
		this._propagate("start", event);
		return true;
	},

	_mouseDrag: function(event) {

		//Increase performance, avoid regex
		var data,
			el = this.helper, props = {},
			smp = this.originalMousePosition,
			a = this.axis,
			prevTop = this.position.top,
			prevLeft = this.position.left,
			prevWidth = this.size.width,
			prevHeight = this.size.height,
			dx = (event.pageX-smp.left)||0,
			dy = (event.pageY-smp.top)||0,
			trigger = this._change[a];

		if (!trigger) {
			return false;
		}

		// Calculate the attrs that will be change
		data = trigger.apply(this, [event, dx, dy]);

		// Put this in the mouseDrag handler since the user can start pressing shift while resizing
		this._updateVirtualBoundaries(event.shiftKey);
		if (this._aspectRatio || event.shiftKey) {
			data = this._updateRatio(data, event);
		}

		data = this._respectSize(data, event);

		this._updateCache(data);

		// plugins callbacks need to be called first
		this._propagate("resize", event);

		if (this.position.top !== prevTop) {
			props.top = this.position.top + "px";
		}
		if (this.position.left !== prevLeft) {
			props.left = this.position.left + "px";
		}
		if (this.size.width !== prevWidth) {
			props.width = this.size.width + "px";
		}
		if (this.size.height !== prevHeight) {
			props.height = this.size.height + "px";
		}
		el.css(props);

		if (!this._helper && this._proportionallyResizeElements.length) {
			this._proportionallyResize();
		}

		// Call the user callback if the element was resized
		if ( ! $.isEmptyObject(props) ) {
			this._trigger("resize", event, this.ui());
		}

		return false;
	},

	_mouseStop: function(event) {

		this.resizing = false;
		var pr, ista, soffseth, soffsetw, s, left, top,
			o = this.options, that = this;

		if(this._helper) {

			pr = this._proportionallyResizeElements;
			ista = pr.length && (/textarea/i).test(pr[0].nodeName);
			soffseth = ista && $.ui.hasScroll(pr[0], "left") /* TODO - jump height */ ? 0 : that.sizeDiff.height;
			soffsetw = ista ? 0 : that.sizeDiff.width;

			s = { width: (that.helper.width()  - soffsetw), height: (that.helper.height() - soffseth) };
			left = (parseInt(that.element.css("left"), 10) + (that.position.left - that.originalPosition.left)) || null;
			top = (parseInt(that.element.css("top"), 10) + (that.position.top - that.originalPosition.top)) || null;

			if (!o.animate) {
				this.element.css($.extend(s, { top: top, left: left }));
			}

			that.helper.height(that.size.height);
			that.helper.width(that.size.width);

			if (this._helper && !o.animate) {
				this._proportionallyResize();
			}
		}

		$("body").css("cursor", "auto");

		this.element.removeClass("ui-resizable-resizing");

		this._propagate("stop", event);

		if (this._helper) {
			this.helper.remove();
		}

		return false;

	},

	_updateVirtualBoundaries: function(forceAspectRatio) {
		var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b,
			o = this.options;

		b = {
			minWidth: isNumber(o.minWidth) ? o.minWidth : 0,
			maxWidth: isNumber(o.maxWidth) ? o.maxWidth : Infinity,
			minHeight: isNumber(o.minHeight) ? o.minHeight : 0,
			maxHeight: isNumber(o.maxHeight) ? o.maxHeight : Infinity
		};

		if(this._aspectRatio || forceAspectRatio) {
			// We want to create an enclosing box whose aspect ration is the requested one
			// First, compute the "projected" size for each dimension based on the aspect ratio and other dimension
			pMinWidth = b.minHeight * this.aspectRatio;
			pMinHeight = b.minWidth / this.aspectRatio;
			pMaxWidth = b.maxHeight * this.aspectRatio;
			pMaxHeight = b.maxWidth / this.aspectRatio;

			if(pMinWidth > b.minWidth) {
				b.minWidth = pMinWidth;
			}
			if(pMinHeight > b.minHeight) {
				b.minHeight = pMinHeight;
			}
			if(pMaxWidth < b.maxWidth) {
				b.maxWidth = pMaxWidth;
			}
			if(pMaxHeight < b.maxHeight) {
				b.maxHeight = pMaxHeight;
			}
		}
		this._vBoundaries = b;
	},

	_updateCache: function(data) {
		this.offset = this.helper.offset();
		if (isNumber(data.left)) {
			this.position.left = data.left;
		}
		if (isNumber(data.top)) {
			this.position.top = data.top;
		}
		if (isNumber(data.height)) {
			this.size.height = data.height;
		}
		if (isNumber(data.width)) {
			this.size.width = data.width;
		}
	},

	_updateRatio: function( data ) {

		var cpos = this.position,
			csize = this.size,
			a = this.axis;

		if (isNumber(data.height)) {
			data.width = (data.height * this.aspectRatio);
		} else if (isNumber(data.width)) {
			data.height = (data.width / this.aspectRatio);
		}

		if (a === "sw") {
			data.left = cpos.left + (csize.width - data.width);
			data.top = null;
		}
		if (a === "nw") {
			data.top = cpos.top + (csize.height - data.height);
			data.left = cpos.left + (csize.width - data.width);
		}

		return data;
	},

	_respectSize: function( data ) {

		var o = this._vBoundaries,
			a = this.axis,
			ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
			isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height),
			dw = this.originalPosition.left + this.originalSize.width,
			dh = this.position.top + this.size.height,
			cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);
		if (isminw) {
			data.width = o.minWidth;
		}
		if (isminh) {
			data.height = o.minHeight;
		}
		if (ismaxw) {
			data.width = o.maxWidth;
		}
		if (ismaxh) {
			data.height = o.maxHeight;
		}

		if (isminw && cw) {
			data.left = dw - o.minWidth;
		}
		if (ismaxw && cw) {
			data.left = dw - o.maxWidth;
		}
		if (isminh && ch) {
			data.top = dh - o.minHeight;
		}
		if (ismaxh && ch) {
			data.top = dh - o.maxHeight;
		}

		// fixing jump error on top/left - bug #2330
		if (!data.width && !data.height && !data.left && data.top) {
			data.top = null;
		} else if (!data.width && !data.height && !data.top && data.left) {
			data.left = null;
		}

		return data;
	},

	_proportionallyResize: function() {

		if (!this._proportionallyResizeElements.length) {
			return;
		}

		var i, j, borders, paddings, prel,
			element = this.helper || this.element;

		for ( i=0; i < this._proportionallyResizeElements.length; i++) {

			prel = this._proportionallyResizeElements[i];

			if (!this.borderDif) {
				this.borderDif = [];
				borders = [prel.css("borderTopWidth"), prel.css("borderRightWidth"), prel.css("borderBottomWidth"), prel.css("borderLeftWidth")];
				paddings = [prel.css("paddingTop"), prel.css("paddingRight"), prel.css("paddingBottom"), prel.css("paddingLeft")];

				for ( j = 0; j < borders.length; j++ ) {
					this.borderDif[ j ] = ( parseInt( borders[ j ], 10 ) || 0 ) + ( parseInt( paddings[ j ], 10 ) || 0 );
				}
			}

			prel.css({
				height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
				width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
			});

		}

	},

	_renderProxy: function() {

		var el = this.element, o = this.options;
		this.elementOffset = el.offset();

		if(this._helper) {

			this.helper = this.helper || $("<div style='overflow:hidden;'></div>");

			this.helper.addClass(this._helper).css({
				width: this.element.outerWidth() - 1,
				height: this.element.outerHeight() - 1,
				position: "absolute",
				left: this.elementOffset.left +"px",
				top: this.elementOffset.top +"px",
				zIndex: ++o.zIndex //TODO: Don't modify option
			});

			this.helper
				.appendTo("body")
				.disableSelection();

		} else {
			this.helper = this.element;
		}

	},

	_change: {
		e: function(event, dx) {
			return { width: this.originalSize.width + dx };
		},
		w: function(event, dx) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { left: sp.left + dx, width: cs.width - dx };
		},
		n: function(event, dx, dy) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { top: sp.top + dy, height: cs.height - dy };
		},
		s: function(event, dx, dy) {
			return { height: this.originalSize.height + dy };
		},
		se: function(event, dx, dy) {
			return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
		},
		sw: function(event, dx, dy) {
			return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
		},
		ne: function(event, dx, dy) {
			return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
		},
		nw: function(event, dx, dy) {
			return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
		}
	},

	_propagate: function(n, event) {
		$.ui.plugin.call(this, n, [event, this.ui()]);
		(n !== "resize" && this._trigger(n, event, this.ui()));
	},

	plugins: {},

	ui: function() {
		return {
			originalElement: this.originalElement,
			element: this.element,
			helper: this.helper,
			position: this.position,
			size: this.size,
			originalSize: this.originalSize,
			originalPosition: this.originalPosition
		};
	}

});

/*
 * Resizable Extensions
 */

$.ui.plugin.add("resizable", "animate", {

	stop: function( event ) {
		var that = $(this).data("ui-resizable"),
			o = that.options,
			pr = that._proportionallyResizeElements,
			ista = pr.length && (/textarea/i).test(pr[0].nodeName),
			soffseth = ista && $.ui.hasScroll(pr[0], "left") /* TODO - jump height */ ? 0 : that.sizeDiff.height,
			soffsetw = ista ? 0 : that.sizeDiff.width,
			style = { width: (that.size.width - soffsetw), height: (that.size.height - soffseth) },
			left = (parseInt(that.element.css("left"), 10) + (that.position.left - that.originalPosition.left)) || null,
			top = (parseInt(that.element.css("top"), 10) + (that.position.top - that.originalPosition.top)) || null;

		that.element.animate(
			$.extend(style, top && left ? { top: top, left: left } : {}), {
				duration: o.animateDuration,
				easing: o.animateEasing,
				step: function() {

					var data = {
						width: parseInt(that.element.css("width"), 10),
						height: parseInt(that.element.css("height"), 10),
						top: parseInt(that.element.css("top"), 10),
						left: parseInt(that.element.css("left"), 10)
					};

					if (pr && pr.length) {
						$(pr[0]).css({ width: data.width, height: data.height });
					}

					// propagating resize, and updating values for each animation step
					that._updateCache(data);
					that._propagate("resize", event);

				}
			}
		);
	}

});

$.ui.plugin.add("resizable", "containment", {

	start: function() {
		var element, p, co, ch, cw, width, height,
			that = $(this).data("ui-resizable"),
			o = that.options,
			el = that.element,
			oc = o.containment,
			ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;

		if (!ce) {
			return;
		}

		that.containerElement = $(ce);

		if (/document/.test(oc) || oc === document) {
			that.containerOffset = { left: 0, top: 0 };
			that.containerPosition = { left: 0, top: 0 };

			that.parentData = {
				element: $(document), left: 0, top: 0,
				width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
			};
		}

		// i'm a node, so compute top, left, right, bottom
		else {
			element = $(ce);
			p = [];
			$([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });

			that.containerOffset = element.offset();
			that.containerPosition = element.position();
			that.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };

			co = that.containerOffset;
			ch = that.containerSize.height;
			cw = that.containerSize.width;
			width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw );
			height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);

			that.parentData = {
				element: ce, left: co.left, top: co.top, width: width, height: height
			};
		}
	},

	resize: function( event ) {
		var woset, hoset, isParent, isOffsetRelative,
			that = $(this).data("ui-resizable"),
			o = that.options,
			co = that.containerOffset, cp = that.position,
			pRatio = that._aspectRatio || event.shiftKey,
			cop = { top:0, left:0 }, ce = that.containerElement;

		if (ce[0] !== document && (/static/).test(ce.css("position"))) {
			cop = co;
		}

		if (cp.left < (that._helper ? co.left : 0)) {
			that.size.width = that.size.width + (that._helper ? (that.position.left - co.left) : (that.position.left - cop.left));
			if (pRatio) {
				that.size.height = that.size.width / that.aspectRatio;
			}
			that.position.left = o.helper ? co.left : 0;
		}

		if (cp.top < (that._helper ? co.top : 0)) {
			that.size.height = that.size.height + (that._helper ? (that.position.top - co.top) : that.position.top);
			if (pRatio) {
				that.size.width = that.size.height * that.aspectRatio;
			}
			that.position.top = that._helper ? co.top : 0;
		}

		that.offset.left = that.parentData.left+that.position.left;
		that.offset.top = that.parentData.top+that.position.top;

		woset = Math.abs( (that._helper ? that.offset.left - cop.left : (that.offset.left - cop.left)) + that.sizeDiff.width );
		hoset = Math.abs( (that._helper ? that.offset.top - cop.top : (that.offset.top - co.top)) + that.sizeDiff.height );

		isParent = that.containerElement.get(0) === that.element.parent().get(0);
		isOffsetRelative = /relative|absolute/.test(that.containerElement.css("position"));

		if(isParent && isOffsetRelative) {
			woset -= that.parentData.left;
		}

		if (woset + that.size.width >= that.parentData.width) {
			that.size.width = that.parentData.width - woset;
			if (pRatio) {
				that.size.height = that.size.width / that.aspectRatio;
			}
		}

		if (hoset + that.size.height >= that.parentData.height) {
			that.size.height = that.parentData.height - hoset;
			if (pRatio) {
				that.size.width = that.size.height * that.aspectRatio;
			}
		}
	},

	stop: function(){
		var that = $(this).data("ui-resizable"),
			o = that.options,
			co = that.containerOffset,
			cop = that.containerPosition,
			ce = that.containerElement,
			helper = $(that.helper),
			ho = helper.offset(),
			w = helper.outerWidth() - that.sizeDiff.width,
			h = helper.outerHeight() - that.sizeDiff.height;

		if (that._helper && !o.animate && (/relative/).test(ce.css("position"))) {
			$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
		}

		if (that._helper && !o.animate && (/static/).test(ce.css("position"))) {
			$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });
		}

	}
});

$.ui.plugin.add("resizable", "alsoResize", {

	start: function () {
		var that = $(this).data("ui-resizable"),
			o = that.options,
			_store = function (exp) {
				$(exp).each(function() {
					var el = $(this);
					el.data("ui-resizable-alsoresize", {
						width: parseInt(el.width(), 10), height: parseInt(el.height(), 10),
						left: parseInt(el.css("left"), 10), top: parseInt(el.css("top"), 10)
					});
				});
			};

		if (typeof(o.alsoResize) === "object" && !o.alsoResize.parentNode) {
			if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); }
			else { $.each(o.alsoResize, function (exp) { _store(exp); }); }
		}else{
			_store(o.alsoResize);
		}
	},

	resize: function (event, ui) {
		var that = $(this).data("ui-resizable"),
			o = that.options,
			os = that.originalSize,
			op = that.originalPosition,
			delta = {
				height: (that.size.height - os.height) || 0, width: (that.size.width - os.width) || 0,
				top: (that.position.top - op.top) || 0, left: (that.position.left - op.left) || 0
			},

			_alsoResize = function (exp, c) {
				$(exp).each(function() {
					var el = $(this), start = $(this).data("ui-resizable-alsoresize"), style = {},
						css = c && c.length ? c : el.parents(ui.originalElement[0]).length ? ["width", "height"] : ["width", "height", "top", "left"];

					$.each(css, function (i, prop) {
						var sum = (start[prop]||0) + (delta[prop]||0);
						if (sum && sum >= 0) {
							style[prop] = sum || null;
						}
					});

					el.css(style);
				});
			};

		if (typeof(o.alsoResize) === "object" && !o.alsoResize.nodeType) {
			$.each(o.alsoResize, function (exp, c) { _alsoResize(exp, c); });
		}else{
			_alsoResize(o.alsoResize);
		}
	},

	stop: function () {
		$(this).removeData("resizable-alsoresize");
	}
});

$.ui.plugin.add("resizable", "ghost", {

	start: function() {

		var that = $(this).data("ui-resizable"), o = that.options, cs = that.size;

		that.ghost = that.originalElement.clone();
		that.ghost
			.css({ opacity: 0.25, display: "block", position: "relative", height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 })
			.addClass("ui-resizable-ghost")
			.addClass(typeof o.ghost === "string" ? o.ghost : "");

		that.ghost.appendTo(that.helper);

	},

	resize: function(){
		var that = $(this).data("ui-resizable");
		if (that.ghost) {
			that.ghost.css({ position: "relative", height: that.size.height, width: that.size.width });
		}
	},

	stop: function() {
		var that = $(this).data("ui-resizable");
		if (that.ghost && that.helper) {
			that.helper.get(0).removeChild(that.ghost.get(0));
		}
	}

});

$.ui.plugin.add("resizable", "grid", {

	resize: function() {
		var that = $(this).data("ui-resizable"),
			o = that.options,
			cs = that.size,
			os = that.originalSize,
			op = that.originalPosition,
			a = that.axis,
			grid = typeof o.grid === "number" ? [o.grid, o.grid] : o.grid,
			gridX = (grid[0]||1),
			gridY = (grid[1]||1),
			ox = Math.round((cs.width - os.width) / gridX) * gridX,
			oy = Math.round((cs.height - os.height) / gridY) * gridY,
			newWidth = os.width + ox,
			newHeight = os.height + oy,
			isMaxWidth = o.maxWidth && (o.maxWidth < newWidth),
			isMaxHeight = o.maxHeight && (o.maxHeight < newHeight),
			isMinWidth = o.minWidth && (o.minWidth > newWidth),
			isMinHeight = o.minHeight && (o.minHeight > newHeight);

		o.grid = grid;

		if (isMinWidth) {
			newWidth = newWidth + gridX;
		}
		if (isMinHeight) {
			newHeight = newHeight + gridY;
		}
		if (isMaxWidth) {
			newWidth = newWidth - gridX;
		}
		if (isMaxHeight) {
			newHeight = newHeight - gridY;
		}

		if (/^(se|s|e)$/.test(a)) {
			that.size.width = newWidth;
			that.size.height = newHeight;
		} else if (/^(ne)$/.test(a)) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.top = op.top - oy;
		} else if (/^(sw)$/.test(a)) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.left = op.left - ox;
		} else {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.top = op.top - oy;
			that.position.left = op.left - ox;
		}
	}

});

})(jQuery);

(function( $, undefined ) {

$.widget("ui.selectable", $.ui.mouse, {
	version: "1.10.3",
	options: {
		appendTo: "body",
		autoRefresh: true,
		distance: 0,
		filter: "*",
		tolerance: "touch",

		// callbacks
		selected: null,
		selecting: null,
		start: null,
		stop: null,
		unselected: null,
		unselecting: null
	},
	_create: function() {
		var selectees,
			that = this;

		this.element.addClass("ui-selectable");

		this.dragged = false;

		// cache selectee children based on filter
		this.refresh = function() {
			selectees = $(that.options.filter, that.element[0]);
			selectees.addClass("ui-selectee");
			selectees.each(function() {
				var $this = $(this),
					pos = $this.offset();
				$.data(this, "selectable-item", {
					element: this,
					$element: $this,
					left: pos.left,
					top: pos.top,
					right: pos.left + $this.outerWidth(),
					bottom: pos.top + $this.outerHeight(),
					startselected: false,
					selected: $this.hasClass("ui-selected"),
					selecting: $this.hasClass("ui-selecting"),
					unselecting: $this.hasClass("ui-unselecting")
				});
			});
		};
		this.refresh();

		this.selectees = selectees.addClass("ui-selectee");

		this._mouseInit();

		this.helper = $("<div class='ui-selectable-helper'></div>");
	},

	_destroy: function() {
		this.selectees
			.removeClass("ui-selectee")
			.removeData("selectable-item");
		this.element
			.removeClass("ui-selectable ui-selectable-disabled");
		this._mouseDestroy();
	},

	_mouseStart: function(event) {
		var that = this,
			options = this.options;

		this.opos = [event.pageX, event.pageY];

		if (this.options.disabled) {
			return;
		}

		this.selectees = $(options.filter, this.element[0]);

		this._trigger("start", event);

		$(options.appendTo).append(this.helper);
		// position helper (lasso)
		this.helper.css({
			"left": event.pageX,
			"top": event.pageY,
			"width": 0,
			"height": 0
		});

		if (options.autoRefresh) {
			this.refresh();
		}

		this.selectees.filter(".ui-selected").each(function() {
			var selectee = $.data(this, "selectable-item");
			selectee.startselected = true;
			if (!event.metaKey && !event.ctrlKey) {
				selectee.$element.removeClass("ui-selected");
				selectee.selected = false;
				selectee.$element.addClass("ui-unselecting");
				selectee.unselecting = true;
				// selectable UNSELECTING callback
				that._trigger("unselecting", event, {
					unselecting: selectee.element
				});
			}
		});

		$(event.target).parents().addBack().each(function() {
			var doSelect,
				selectee = $.data(this, "selectable-item");
			if (selectee) {
				doSelect = (!event.metaKey && !event.ctrlKey) || !selectee.$element.hasClass("ui-selected");
				selectee.$element
					.removeClass(doSelect ? "ui-unselecting" : "ui-selected")
					.addClass(doSelect ? "ui-selecting" : "ui-unselecting");
				selectee.unselecting = !doSelect;
				selectee.selecting = doSelect;
				selectee.selected = doSelect;
				// selectable (UN)SELECTING callback
				if (doSelect) {
					that._trigger("selecting", event, {
						selecting: selectee.element
					});
				} else {
					that._trigger("unselecting", event, {
						unselecting: selectee.element
					});
				}
				return false;
			}
		});

	},

	_mouseDrag: function(event) {

		this.dragged = true;

		if (this.options.disabled) {
			return;
		}

		var tmp,
			that = this,
			options = this.options,
			x1 = this.opos[0],
			y1 = this.opos[1],
			x2 = event.pageX,
			y2 = event.pageY;

		if (x1 > x2) { tmp = x2; x2 = x1; x1 = tmp; }
		if (y1 > y2) { tmp = y2; y2 = y1; y1 = tmp; }
		this.helper.css({left: x1, top: y1, width: x2-x1, height: y2-y1});

		this.selectees.each(function() {
			var selectee = $.data(this, "selectable-item"),
				hit = false;

			//prevent helper from being selected if appendTo: selectable
			if (!selectee || selectee.element === that.element[0]) {
				return;
			}

			if (options.tolerance === "touch") {
				hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) );
			} else if (options.tolerance === "fit") {
				hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2);
			}

			if (hit) {
				// SELECT
				if (selectee.selected) {
					selectee.$element.removeClass("ui-selected");
					selectee.selected = false;
				}
				if (selectee.unselecting) {
					selectee.$element.removeClass("ui-unselecting");
					selectee.unselecting = false;
				}
				if (!selectee.selecting) {
					selectee.$element.addClass("ui-selecting");
					selectee.selecting = true;
					// selectable SELECTING callback
					that._trigger("selecting", event, {
						selecting: selectee.element
					});
				}
			} else {
				// UNSELECT
				if (selectee.selecting) {
					if ((event.metaKey || event.ctrlKey) && selectee.startselected) {
						selectee.$element.removeClass("ui-selecting");
						selectee.selecting = false;
						selectee.$element.addClass("ui-selected");
						selectee.selected = true;
					} else {
						selectee.$element.removeClass("ui-selecting");
						selectee.selecting = false;
						if (selectee.startselected) {
							selectee.$element.addClass("ui-unselecting");
							selectee.unselecting = true;
						}
						// selectable UNSELECTING callback
						that._trigger("unselecting", event, {
							unselecting: selectee.element
						});
					}
				}
				if (selectee.selected) {
					if (!event.metaKey && !event.ctrlKey && !selectee.startselected) {
						selectee.$element.removeClass("ui-selected");
						selectee.selected = false;

						selectee.$element.addClass("ui-unselecting");
						selectee.unselecting = true;
						// selectable UNSELECTING callback
						that._trigger("unselecting", event, {
							unselecting: selectee.element
						});
					}
				}
			}
		});

		return false;
	},

	_mouseStop: function(event) {
		var that = this;

		this.dragged = false;

		$(".ui-unselecting", this.element[0]).each(function() {
			var selectee = $.data(this, "selectable-item");
			selectee.$element.removeClass("ui-unselecting");
			selectee.unselecting = false;
			selectee.startselected = false;
			that._trigger("unselected", event, {
				unselected: selectee.element
			});
		});
		$(".ui-selecting", this.element[0]).each(function() {
			var selectee = $.data(this, "selectable-item");
			selectee.$element.removeClass("ui-selecting").addClass("ui-selected");
			selectee.selecting = false;
			selectee.selected = true;
			selectee.startselected = true;
			that._trigger("selected", event, {
				selected: selectee.element
			});
		});
		this._trigger("stop", event);

		this.helper.remove();

		return false;
	}

});

})(jQuery);

(function( $, undefined ) {

/*jshint loopfunc: true */

function isOverAxis( x, reference, size ) {
	return ( x > reference ) && ( x < ( reference + size ) );
}

function isFloating(item) {
	return (/left|right/).test(item.css("float")) || (/inline|table-cell/).test(item.css("display"));
}

$.widget("ui.sortable", $.ui.mouse, {
	version: "1.10.3",
	widgetEventPrefix: "sort",
	ready: false,
	options: {
		appendTo: "parent",
		axis: false,
		connectWith: false,
		containment: false,
		cursor: "auto",
		cursorAt: false,
		dropOnEmpty: true,
		forcePlaceholderSize: false,
		forceHelperSize: false,
		grid: false,
		handle: false,
		helper: "original",
		items: "> *",
		opacity: false,
		placeholder: false,
		revert: false,
		scroll: true,
		scrollSensitivity: 20,
		scrollSpeed: 20,
		scope: "default",
		tolerance: "intersect",
		zIndex: 1000,

		// callbacks
		activate: null,
		beforeStop: null,
		change: null,
		deactivate: null,
		out: null,
		over: null,
		receive: null,
		remove: null,
		sort: null,
		start: null,
		stop: null,
		update: null
	},
	_create: function() {

		var o = this.options;
		this.containerCache = {};
		this.element.addClass("ui-sortable");

		//Get the items
		this.refresh();

		//Let's determine if the items are being displayed horizontally
		this.floating = this.items.length ? o.axis === "x" || isFloating(this.items[0].item) : false;

		//Let's determine the parent's offset
		this.offset = this.element.offset();

		//Initialize mouse events for interaction
		this._mouseInit();

		//We're ready to go
		this.ready = true;

	},

	_destroy: function() {
		this.element
			.removeClass("ui-sortable ui-sortable-disabled");
		this._mouseDestroy();

		for ( var i = this.items.length - 1; i >= 0; i-- ) {
			this.items[i].item.removeData(this.widgetName + "-item");
		}

		return this;
	},

	_setOption: function(key, value){
		if ( key === "disabled" ) {
			this.options[ key ] = value;

			this.widget().toggleClass( "ui-sortable-disabled", !!value );
		} else {
			// Don't call widget base _setOption for disable as it adds ui-state-disabled class
			$.Widget.prototype._setOption.apply(this, arguments);
		}
	},

	_mouseCapture: function(event, overrideHandle) {
		var currentItem = null,
			validHandle = false,
			that = this;

		if (this.reverting) {
			return false;
		}

		if(this.options.disabled || this.options.type === "static") {
			return false;
		}

		//We have to refresh the items data once first
		this._refreshItems(event);

		//Find out if the clicked node (or one of its parents) is a actual item in this.items
		$(event.target).parents().each(function() {
			if($.data(this, that.widgetName + "-item") === that) {
				currentItem = $(this);
				return false;
			}
		});
		if($.data(event.target, that.widgetName + "-item") === that) {
			currentItem = $(event.target);
		}

		if(!currentItem) {
			return false;
		}
		if(this.options.handle && !overrideHandle) {
			$(this.options.handle, currentItem).find("*").addBack().each(function() {
				if(this === event.target) {
					validHandle = true;
				}
			});
			if(!validHandle) {
				return false;
			}
		}

		this.currentItem = currentItem;
		this._removeCurrentsFromItems();
		return true;

	},

	_mouseStart: function(event, overrideHandle, noActivation) {

		var i, body,
			o = this.options;

		this.currentContainer = this;

		//We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
		this.refreshPositions();

		//Create and append the visible helper
		this.helper = this._createHelper(event);

		//Cache the helper size
		this._cacheHelperProportions();

		/*
		 * - Position generation -
		 * This block generates everything position related - it's the core of draggables.
		 */

		//Cache the margins of the original element
		this._cacheMargins();

		//Get the next scrolling parent
		this.scrollParent = this.helper.scrollParent();

		//The element's absolute position on the page minus margins
		this.offset = this.currentItem.offset();
		this.offset = {
			top: this.offset.top - this.margins.top,
			left: this.offset.left - this.margins.left
		};

		$.extend(this.offset, {
			click: { //Where the click happened, relative to the element
				left: event.pageX - this.offset.left,
				top: event.pageY - this.offset.top
			},
			parent: this._getParentOffset(),
			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
		});

		// Only after we got the offset, we can change the helper's position to absolute
		// TODO: Still need to figure out a way to make relative sorting possible
		this.helper.css("position", "absolute");
		this.cssPosition = this.helper.css("position");

		//Generate the original position
		this.originalPosition = this._generatePosition(event);
		this.originalPageX = event.pageX;
		this.originalPageY = event.pageY;

		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
		(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));

		//Cache the former DOM position
		this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };

		//If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
		if(this.helper[0] !== this.currentItem[0]) {
			this.currentItem.hide();
		}

		//Create the placeholder
		this._createPlaceholder();

		//Set a containment if given in the options
		if(o.containment) {
			this._setContainment();
		}

		if( o.cursor && o.cursor !== "auto" ) { // cursor option
			body = this.document.find( "body" );

			// support: IE
			this.storedCursor = body.css( "cursor" );
			body.css( "cursor", o.cursor );

			this.storedStylesheet = $( "<style>*{ cursor: "+o.cursor+" !important; }</style>" ).appendTo( body );
		}

		if(o.opacity) { // opacity option
			if (this.helper.css("opacity")) {
				this._storedOpacity = this.helper.css("opacity");
			}
			this.helper.css("opacity", o.opacity);
		}

		if(o.zIndex) { // zIndex option
			if (this.helper.css("zIndex")) {
				this._storedZIndex = this.helper.css("zIndex");
			}
			this.helper.css("zIndex", o.zIndex);
		}

		//Prepare scrolling
		if(this.scrollParent[0] !== document && this.scrollParent[0].tagName !== "HTML") {
			this.overflowOffset = this.scrollParent.offset();
		}

		//Call callbacks
		this._trigger("start", event, this._uiHash());

		//Recache the helper size
		if(!this._preserveHelperProportions) {
			this._cacheHelperProportions();
		}


		//Post "activate" events to possible containers
		if( !noActivation ) {
			for ( i = this.containers.length - 1; i >= 0; i-- ) {
				this.containers[ i ]._trigger( "activate", event, this._uiHash( this ) );
			}
		}

		//Prepare possible droppables
		if($.ui.ddmanager) {
			$.ui.ddmanager.current = this;
		}

		if ($.ui.ddmanager && !o.dropBehaviour) {
			$.ui.ddmanager.prepareOffsets(this, event);
		}

		this.dragging = true;

		this.helper.addClass("ui-sortable-helper");
		this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
		return true;

	},

	_mouseDrag: function(event) {
		var i, item, itemElement, intersection,
			o = this.options,
			scrolled = false;

		//Compute the helpers position
		this.position = this._generatePosition(event);
		this.positionAbs = this._convertPositionTo("absolute");

		if (!this.lastPositionAbs) {
			this.lastPositionAbs = this.positionAbs;
		}

		//Do scrolling
		if(this.options.scroll) {
			if(this.scrollParent[0] !== document && this.scrollParent[0].tagName !== "HTML") {

				if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) {
					this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
				} else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) {
					this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
				}

				if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) {
					this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
				} else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) {
					this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
				}

			} else {

				if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) {
					scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
				} else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) {
					scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
				}

				if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) {
					scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
				} else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) {
					scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
				}

			}

			if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) {
				$.ui.ddmanager.prepareOffsets(this, event);
			}
		}

		//Regenerate the absolute position used for position checks
		this.positionAbs = this._convertPositionTo("absolute");

		//Set the helper position
		if(!this.options.axis || this.options.axis !== "y") {
			this.helper[0].style.left = this.position.left+"px";
		}
		if(!this.options.axis || this.options.axis !== "x") {
			this.helper[0].style.top = this.position.top+"px";
		}

		//Rearrange
		for (i = this.items.length - 1; i >= 0; i--) {

			//Cache variables and intersection, continue if no intersection
			item = this.items[i];
			itemElement = item.item[0];
			intersection = this._intersectsWithPointer(item);
			if (!intersection) {
				continue;
			}

			// Only put the placeholder inside the current Container, skip all
			// items form other containers. This works because when moving
			// an item from one container to another the
			// currentContainer is switched before the placeholder is moved.
			//
			// Without this moving items in "sub-sortables" can cause the placeholder to jitter
			// beetween the outer and inner container.
			if (item.instance !== this.currentContainer) {
				continue;
			}

			// cannot intersect with itself
			// no useless actions that have been done before
			// no action if the item moved is the parent of the item checked
			if (itemElement !== this.currentItem[0] &&
				this.placeholder[intersection === 1 ? "next" : "prev"]()[0] !== itemElement &&
				!$.contains(this.placeholder[0], itemElement) &&
				(this.options.type === "semi-dynamic" ? !$.contains(this.element[0], itemElement) : true)
			) {

				this.direction = intersection === 1 ? "down" : "up";

				if (this.options.tolerance === "pointer" || this._intersectsWithSides(item)) {
					this._rearrange(event, item);
				} else {
					break;
				}

				this._trigger("change", event, this._uiHash());
				break;
			}
		}

		//Post events to containers
		this._contactContainers(event);

		//Interconnect with droppables
		if($.ui.ddmanager) {
			$.ui.ddmanager.drag(this, event);
		}

		//Call callbacks
		this._trigger("sort", event, this._uiHash());

		this.lastPositionAbs = this.positionAbs;
		return false;

	},

	_mouseStop: function(event, noPropagation) {

		if(!event) {
			return;
		}

		//If we are using droppables, inform the manager about the drop
		if ($.ui.ddmanager && !this.options.dropBehaviour) {
			$.ui.ddmanager.drop(this, event);
		}

		if(this.options.revert) {
			var that = this,
				cur = this.placeholder.offset(),
				axis = this.options.axis,
				animation = {};

			if ( !axis || axis === "x" ) {
				animation.left = cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] === document.body ? 0 : this.offsetParent[0].scrollLeft);
			}
			if ( !axis || axis === "y" ) {
				animation.top = cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] === document.body ? 0 : this.offsetParent[0].scrollTop);
			}
			this.reverting = true;
			$(this.helper).animate( animation, parseInt(this.options.revert, 10) || 500, function() {
				that._clear(event);
			});
		} else {
			this._clear(event, noPropagation);
		}

		return false;

	},

	cancel: function() {

		if(this.dragging) {

			this._mouseUp({ target: null });

			if(this.options.helper === "original") {
				this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
			} else {
				this.currentItem.show();
			}

			//Post deactivating events to containers
			for (var i = this.containers.length - 1; i >= 0; i--){
				this.containers[i]._trigger("deactivate", null, this._uiHash(this));
				if(this.containers[i].containerCache.over) {
					this.containers[i]._trigger("out", null, this._uiHash(this));
					this.containers[i].containerCache.over = 0;
				}
			}

		}

		if (this.placeholder) {
			//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
			if(this.placeholder[0].parentNode) {
				this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
			}
			if(this.options.helper !== "original" && this.helper && this.helper[0].parentNode) {
				this.helper.remove();
			}

			$.extend(this, {
				helper: null,
				dragging: false,
				reverting: false,
				_noFinalSort: null
			});

			if(this.domPosition.prev) {
				$(this.domPosition.prev).after(this.currentItem);
			} else {
				$(this.domPosition.parent).prepend(this.currentItem);
			}
		}

		return this;

	},

	serialize: function(o) {

		var items = this._getItemsAsjQuery(o && o.connected),
			str = [];
		o = o || {};

		$(items).each(function() {
			var res = ($(o.item || this).attr(o.attribute || "id") || "").match(o.expression || (/(.+)[\-=_](.+)/));
			if (res) {
				str.push((o.key || res[1]+"[]")+"="+(o.key && o.expression ? res[1] : res[2]));
			}
		});

		if(!str.length && o.key) {
			str.push(o.key + "=");
		}

		return str.join("&");

	},

	toArray: function(o) {

		var items = this._getItemsAsjQuery(o && o.connected),
			ret = [];

		o = o || {};

		items.each(function() { ret.push($(o.item || this).attr(o.attribute || "id") || ""); });
		return ret;

	},

	/* Be careful with the following core functions */
	_intersectsWith: function(item) {

		var x1 = this.positionAbs.left,
			x2 = x1 + this.helperProportions.width,
			y1 = this.positionAbs.top,
			y2 = y1 + this.helperProportions.height,
			l = item.left,
			r = l + item.width,
			t = item.top,
			b = t + item.height,
			dyClick = this.offset.click.top,
			dxClick = this.offset.click.left,
			isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t && ( y1 + dyClick ) < b ),
			isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l && ( x1 + dxClick ) < r ),
			isOverElement = isOverElementHeight && isOverElementWidth;

		if ( this.options.tolerance === "pointer" ||
			this.options.forcePointerForContainers ||
			(this.options.tolerance !== "pointer" && this.helperProportions[this.floating ? "width" : "height"] > item[this.floating ? "width" : "height"])
		) {
			return isOverElement;
		} else {

			return (l < x1 + (this.helperProportions.width / 2) && // Right Half
				x2 - (this.helperProportions.width / 2) < r && // Left Half
				t < y1 + (this.helperProportions.height / 2) && // Bottom Half
				y2 - (this.helperProportions.height / 2) < b ); // Top Half

		}
	},

	_intersectsWithPointer: function(item) {

		var isOverElementHeight = (this.options.axis === "x") || isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
			isOverElementWidth = (this.options.axis === "y") || isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
			isOverElement = isOverElementHeight && isOverElementWidth,
			verticalDirection = this._getDragVerticalDirection(),
			horizontalDirection = this._getDragHorizontalDirection();

		if (!isOverElement) {
			return false;
		}

		return this.floating ?
			( ((horizontalDirection && horizontalDirection === "right") || verticalDirection === "down") ? 2 : 1 )
			: ( verticalDirection && (verticalDirection === "down" ? 2 : 1) );

	},

	_intersectsWithSides: function(item) {

		var isOverBottomHalf = isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
			isOverRightHalf = isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
			verticalDirection = this._getDragVerticalDirection(),
			horizontalDirection = this._getDragHorizontalDirection();

		if (this.floating && horizontalDirection) {
			return ((horizontalDirection === "right" && isOverRightHalf) || (horizontalDirection === "left" && !isOverRightHalf));
		} else {
			return verticalDirection && ((verticalDirection === "down" && isOverBottomHalf) || (verticalDirection === "up" && !isOverBottomHalf));
		}

	},

	_getDragVerticalDirection: function() {
		var delta = this.positionAbs.top - this.lastPositionAbs.top;
		return delta !== 0 && (delta > 0 ? "down" : "up");
	},

	_getDragHorizontalDirection: function() {
		var delta = this.positionAbs.left - this.lastPositionAbs.left;
		return delta !== 0 && (delta > 0 ? "right" : "left");
	},

	refresh: function(event) {
		this._refreshItems(event);
		this.refreshPositions();
		return this;
	},

	_connectWith: function() {
		var options = this.options;
		return options.connectWith.constructor === String ? [options.connectWith] : options.connectWith;
	},

	_getItemsAsjQuery: function(connected) {

		var i, j, cur, inst,
			items = [],
			queries = [],
			connectWith = this._connectWith();

		if(connectWith && connected) {
			for (i = connectWith.length - 1; i >= 0; i--){
				cur = $(connectWith[i]);
				for ( j = cur.length - 1; j >= 0; j--){
					inst = $.data(cur[j], this.widgetFullName);
					if(inst && inst !== this && !inst.options.disabled) {
						queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"), inst]);
					}
				}
			}
		}

		queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"), this]);

		for (i = queries.length - 1; i >= 0; i--){
			queries[i][0].each(function() {
				items.push(this);
			});
		}

		return $(items);

	},

	_removeCurrentsFromItems: function() {

		var list = this.currentItem.find(":data(" + this.widgetName + "-item)");

		this.items = $.grep(this.items, function (item) {
			for (var j=0; j < list.length; j++) {
				if(list[j] === item.item[0]) {
					return false;
				}
			}
			return true;
		});

	},

	_refreshItems: function(event) {

		this.items = [];
		this.containers = [this];

		var i, j, cur, inst, targetData, _queries, item, queriesLength,
			items = this.items,
			queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]],
			connectWith = this._connectWith();

		if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
			for (i = connectWith.length - 1; i >= 0; i--){
				cur = $(connectWith[i]);
				for (j = cur.length - 1; j >= 0; j--){
					inst = $.data(cur[j], this.widgetFullName);
					if(inst && inst !== this && !inst.options.disabled) {
						queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
						this.containers.push(inst);
					}
				}
			}
		}

		for (i = queries.length - 1; i >= 0; i--) {
			targetData = queries[i][1];
			_queries = queries[i][0];

			for (j=0, queriesLength = _queries.length; j < queriesLength; j++) {
				item = $(_queries[j]);

				item.data(this.widgetName + "-item", targetData); // Data for target checking (mouse manager)

				items.push({
					item: item,
					instance: targetData,
					width: 0, height: 0,
					left: 0, top: 0
				});
			}
		}

	},

	refreshPositions: function(fast) {

		//This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
		if(this.offsetParent && this.helper) {
			this.offset.parent = this._getParentOffset();
		}

		var i, item, t, p;

		for (i = this.items.length - 1; i >= 0; i--){
			item = this.items[i];

			//We ignore calculating positions of all connected containers when we're not over them
			if(item.instance !== this.currentContainer && this.currentContainer && item.item[0] !== this.currentItem[0]) {
				continue;
			}

			t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;

			if (!fast) {
				item.width = t.outerWidth();
				item.height = t.outerHeight();
			}

			p = t.offset();
			item.left = p.left;
			item.top = p.top;
		}

		if(this.options.custom && this.options.custom.refreshContainers) {
			this.options.custom.refreshContainers.call(this);
		} else {
			for (i = this.containers.length - 1; i >= 0; i--){
				p = this.containers[i].element.offset();
				this.containers[i].containerCache.left = p.left;
				this.containers[i].containerCache.top = p.top;
				this.containers[i].containerCache.width	= this.containers[i].element.outerWidth();
				this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
			}
		}

		return this;
	},

	_createPlaceholder: function(that) {
		that = that || this;
		var className,
			o = that.options;

		if(!o.placeholder || o.placeholder.constructor === String) {
			className = o.placeholder;
			o.placeholder = {
				element: function() {

					var nodeName = that.currentItem[0].nodeName.toLowerCase(),
						element = $( "<" + nodeName + ">", that.document[0] )
							.addClass(className || that.currentItem[0].className+" ui-sortable-placeholder")
							.removeClass("ui-sortable-helper");

					if ( nodeName === "tr" ) {
						that.currentItem.children().each(function() {
							$( "<td>&#160;</td>", that.document[0] )
								.attr( "colspan", $( this ).attr( "colspan" ) || 1 )
								.appendTo( element );
						});
					} else if ( nodeName === "img" ) {
						element.attr( "src", that.currentItem.attr( "src" ) );
					}

					if ( !className ) {
						element.css( "visibility", "hidden" );
					}

					return element;
				},
				update: function(container, p) {

					// 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
					// 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
					if(className && !o.forcePlaceholderSize) {
						return;
					}

					//If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item
					if(!p.height()) { p.height(that.currentItem.innerHeight() - parseInt(that.currentItem.css("paddingTop")||0, 10) - parseInt(that.currentItem.css("paddingBottom")||0, 10)); }
					if(!p.width()) { p.width(that.currentItem.innerWidth() - parseInt(that.currentItem.css("paddingLeft")||0, 10) - parseInt(that.currentItem.css("paddingRight")||0, 10)); }
				}
			};
		}

		//Create the placeholder
		that.placeholder = $(o.placeholder.element.call(that.element, that.currentItem));

		//Append it after the actual current item
		that.currentItem.after(that.placeholder);

		//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
		o.placeholder.update(that, that.placeholder);

	},

	_contactContainers: function(event) {
		var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, base, cur, nearBottom, floating,
			innermostContainer = null,
			innermostIndex = null;

		// get innermost container that intersects with item
		for (i = this.containers.length - 1; i >= 0; i--) {

			// never consider a container that's located within the item itself
			if($.contains(this.currentItem[0], this.containers[i].element[0])) {
				continue;
			}

			if(this._intersectsWith(this.containers[i].containerCache)) {

				// if we've already found a container and it's more "inner" than this, then continue
				if(innermostContainer && $.contains(this.containers[i].element[0], innermostContainer.element[0])) {
					continue;
				}

				innermostContainer = this.containers[i];
				innermostIndex = i;

			} else {
				// container doesn't intersect. trigger "out" event if necessary
				if(this.containers[i].containerCache.over) {
					this.containers[i]._trigger("out", event, this._uiHash(this));
					this.containers[i].containerCache.over = 0;
				}
			}

		}

		// if no intersecting containers found, return
		if(!innermostContainer) {
			return;
		}

		// move the item into the container if it's not there already
		if(this.containers.length === 1) {
			if (!this.containers[innermostIndex].containerCache.over) {
				this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
				this.containers[innermostIndex].containerCache.over = 1;
			}
		} else {

			//When entering a new container, we will find the item with the least distance and append our item near it
			dist = 10000;
			itemWithLeastDistance = null;
			floating = innermostContainer.floating || isFloating(this.currentItem);
			posProperty = floating ? "left" : "top";
			sizeProperty = floating ? "width" : "height";
			base = this.positionAbs[posProperty] + this.offset.click[posProperty];
			for (j = this.items.length - 1; j >= 0; j--) {
				if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) {
					continue;
				}
				if(this.items[j].item[0] === this.currentItem[0]) {
					continue;
				}
				if (floating && !isOverAxis(this.positionAbs.top + this.offset.click.top, this.items[j].top, this.items[j].height)) {
					continue;
				}
				cur = this.items[j].item.offset()[posProperty];
				nearBottom = false;
				if(Math.abs(cur - base) > Math.abs(cur + this.items[j][sizeProperty] - base)){
					nearBottom = true;
					cur += this.items[j][sizeProperty];
				}

				if(Math.abs(cur - base) < dist) {
					dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
					this.direction = nearBottom ? "up": "down";
				}
			}

			//Check if dropOnEmpty is enabled
			if(!itemWithLeastDistance && !this.options.dropOnEmpty) {
				return;
			}

			if(this.currentContainer === this.containers[innermostIndex]) {
				return;
			}

			itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
			this._trigger("change", event, this._uiHash());
			this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
			this.currentContainer = this.containers[innermostIndex];

			//Update the placeholder
			this.options.placeholder.update(this.currentContainer, this.placeholder);

			this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
			this.containers[innermostIndex].containerCache.over = 1;
		}


	},

	_createHelper: function(event) {

		var o = this.options,
			helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper === "clone" ? this.currentItem.clone() : this.currentItem);

		//Add the helper to the DOM if that didn't happen already
		if(!helper.parents("body").length) {
			$(o.appendTo !== "parent" ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
		}

		if(helper[0] === this.currentItem[0]) {
			this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
		}

		if(!helper[0].style.width || o.forceHelperSize) {
			helper.width(this.currentItem.width());
		}
		if(!helper[0].style.height || o.forceHelperSize) {
			helper.height(this.currentItem.height());
		}

		return helper;

	},

	_adjustOffsetFromHelper: function(obj) {
		if (typeof obj === "string") {
			obj = obj.split(" ");
		}
		if ($.isArray(obj)) {
			obj = {left: +obj[0], top: +obj[1] || 0};
		}
		if ("left" in obj) {
			this.offset.click.left = obj.left + this.margins.left;
		}
		if ("right" in obj) {
			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
		}
		if ("top" in obj) {
			this.offset.click.top = obj.top + this.margins.top;
		}
		if ("bottom" in obj) {
			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
		}
	},

	_getParentOffset: function() {


		//Get the offsetParent and cache its position
		this.offsetParent = this.helper.offsetParent();
		var po = this.offsetParent.offset();

		// This is a special case where we need to modify a offset calculated on start, since the following happened:
		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
		if(this.cssPosition === "absolute" && this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) {
			po.left += this.scrollParent.scrollLeft();
			po.top += this.scrollParent.scrollTop();
		}

		// This needs to be actually done for all browsers, since pageX/pageY includes this information
		// with an ugly IE fix
		if( this.offsetParent[0] === document.body || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() === "html" && $.ui.ie)) {
			po = { top: 0, left: 0 };
		}

		return {
			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
		};

	},

	_getRelativeOffset: function() {

		if(this.cssPosition === "relative") {
			var p = this.currentItem.position();
			return {
				top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
				left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
			};
		} else {
			return { top: 0, left: 0 };
		}

	},

	_cacheMargins: function() {
		this.margins = {
			left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
			top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
		};
	},

	_cacheHelperProportions: function() {
		this.helperProportions = {
			width: this.helper.outerWidth(),
			height: this.helper.outerHeight()
		};
	},

	_setContainment: function() {

		var ce, co, over,
			o = this.options;
		if(o.containment === "parent") {
			o.containment = this.helper[0].parentNode;
		}
		if(o.containment === "document" || o.containment === "window") {
			this.containment = [
				0 - this.offset.relative.left - this.offset.parent.left,
				0 - this.offset.relative.top - this.offset.parent.top,
				$(o.containment === "document" ? document : window).width() - this.helperProportions.width - this.margins.left,
				($(o.containment === "document" ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
			];
		}

		if(!(/^(document|window|parent)$/).test(o.containment)) {
			ce = $(o.containment)[0];
			co = $(o.containment).offset();
			over = ($(ce).css("overflow") !== "hidden");

			this.containment = [
				co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
				co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
				co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left,
				co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top
			];
		}

	},

	_convertPositionTo: function(d, pos) {

		if(!pos) {
			pos = this.position;
		}
		var mod = d === "absolute" ? 1 : -1,
			scroll = this.cssPosition === "absolute" && !(this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent,
			scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);

		return {
			top: (
				pos.top	+																// The absolute mouse position
				this.offset.relative.top * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.top * mod -											// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
			),
			left: (
				pos.left +																// The absolute mouse position
				this.offset.relative.left * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.left * mod	-										// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
			)
		};

	},

	_generatePosition: function(event) {

		var top, left,
			o = this.options,
			pageX = event.pageX,
			pageY = event.pageY,
			scroll = this.cssPosition === "absolute" && !(this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);

		// This is another very weird special case that only happens for relative elements:
		// 1. If the css position is relative
		// 2. and the scroll parent is the document or similar to the offset parent
		// we have to refresh the relative offset during the scroll so there are no jumps
		if(this.cssPosition === "relative" && !(this.scrollParent[0] !== document && this.scrollParent[0] !== this.offsetParent[0])) {
			this.offset.relative = this._getRelativeOffset();
		}

		/*
		 * - Position constraining -
		 * Constrain the position to a mix of grid, containment.
		 */

		if(this.originalPosition) { //If we are not dragging yet, we won't check for options

			if(this.containment) {
				if(event.pageX - this.offset.click.left < this.containment[0]) {
					pageX = this.containment[0] + this.offset.click.left;
				}
				if(event.pageY - this.offset.click.top < this.containment[1]) {
					pageY = this.containment[1] + this.offset.click.top;
				}
				if(event.pageX - this.offset.click.left > this.containment[2]) {
					pageX = this.containment[2] + this.offset.click.left;
				}
				if(event.pageY - this.offset.click.top > this.containment[3]) {
					pageY = this.containment[3] + this.offset.click.top;
				}
			}

			if(o.grid) {
				top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
				pageY = this.containment ? ( (top - this.offset.click.top >= this.containment[1] && top - this.offset.click.top <= this.containment[3]) ? top : ((top - this.offset.click.top >= this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

				left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
				pageX = this.containment ? ( (left - this.offset.click.left >= this.containment[0] && left - this.offset.click.left <= this.containment[2]) ? left : ((left - this.offset.click.left >= this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
			}

		}

		return {
			top: (
				pageY -																// The absolute mouse position
				this.offset.click.top -													// Click offset (relative to the element)
				this.offset.relative.top	-											// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.top +												// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
			),
			left: (
				pageX -																// The absolute mouse position
				this.offset.click.left -												// Click offset (relative to the element)
				this.offset.relative.left	-											// Only for relative positioned nodes: Relative offset from element to offset parent
				this.offset.parent.left +												// The offsetParent's offset without borders (offset + border)
				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
			)
		};

	},

	_rearrange: function(event, i, a, hardRefresh) {

		a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction === "down" ? i.item[0] : i.item[0].nextSibling));

		//Various things done here to improve the performance:
		// 1. we create a setTimeout, that calls refreshPositions
		// 2. on the instance, we have a counter variable, that get's higher after every append
		// 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
		// 4. this lets only the last addition to the timeout stack through
		this.counter = this.counter ? ++this.counter : 1;
		var counter = this.counter;

		this._delay(function() {
			if(counter === this.counter) {
				this.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
			}
		});

	},

	_clear: function(event, noPropagation) {

		this.reverting = false;
		// We delay all events that have to be triggered to after the point where the placeholder has been removed and
		// everything else normalized again
		var i,
			delayedTriggers = [];

		// We first have to update the dom position of the actual currentItem
		// Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
		if(!this._noFinalSort && this.currentItem.parent().length) {
			this.placeholder.before(this.currentItem);
		}
		this._noFinalSort = null;

		if(this.helper[0] === this.currentItem[0]) {
			for(i in this._storedCSS) {
				if(this._storedCSS[i] === "auto" || this._storedCSS[i] === "static") {
					this._storedCSS[i] = "";
				}
			}
			this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
		} else {
			this.currentItem.show();
		}

		if(this.fromOutside && !noPropagation) {
			delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
		}
		if((this.fromOutside || this.domPosition.prev !== this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent !== this.currentItem.parent()[0]) && !noPropagation) {
			delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed
		}

		// Check if the items Container has Changed and trigger appropriate
		// events.
		if (this !== this.currentContainer) {
			if(!noPropagation) {
				delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
				delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); };  }).call(this, this.currentContainer));
				delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this));  }; }).call(this, this.currentContainer));
			}
		}


		//Post events to containers
		for (i = this.containers.length - 1; i >= 0; i--){
			if(!noPropagation) {
				delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
			}
			if(this.containers[i].containerCache.over) {
				delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
				this.containers[i].containerCache.over = 0;
			}
		}

		//Do what was originally in plugins
		if ( this.storedCursor ) {
			this.document.find( "body" ).css( "cursor", this.storedCursor );
			this.storedStylesheet.remove();
		}
		if(this._storedOpacity) {
			this.helper.css("opacity", this._storedOpacity);
		}
		if(this._storedZIndex) {
			this.helper.css("zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex);
		}

		this.dragging = false;
		if(this.cancelHelperRemoval) {
			if(!noPropagation) {
				this._trigger("beforeStop", event, this._uiHash());
				for (i=0; i < delayedTriggers.length; i++) {
					delayedTriggers[i].call(this, event);
				} //Trigger all delayed events
				this._trigger("stop", event, this._uiHash());
			}

			this.fromOutside = false;
			return false;
		}

		if(!noPropagation) {
			this._trigger("beforeStop", event, this._uiHash());
		}

		//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
		this.placeholder[0].parentNode.removeChild(this.placeholder[0]);

		if(this.helper[0] !== this.currentItem[0]) {
			this.helper.remove();
		}
		this.helper = null;

		if(!noPropagation) {
			for (i=0; i < delayedTriggers.length; i++) {
				delayedTriggers[i].call(this, event);
			} //Trigger all delayed events
			this._trigger("stop", event, this._uiHash());
		}

		this.fromOutside = false;
		return true;

	},

	_trigger: function() {
		if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
			this.cancel();
		}
	},

	_uiHash: function(_inst) {
		var inst = _inst || this;
		return {
			helper: inst.helper,
			placeholder: inst.placeholder || $([]),
			position: inst.position,
			originalPosition: inst.originalPosition,
			offset: inst.positionAbs,
			item: inst.currentItem,
			sender: _inst ? _inst.element : null
		};
	}

});

})(jQuery);

(function($, undefined) {

var dataSpace = "ui-effects-";

$.effects = {
	effect: {}
};

/*!
 * jQuery Color Animations v2.1.2
 * https://github.com/jquery/jquery-color
 *
 * Copyright 2013 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * Date: Wed Jan 16 08:47:09 2013 -0600
 */
(function( jQuery, undefined ) {

	var stepHooks = "backgroundColor borderBottomColor borderLeftColor borderRightColor borderTopColor color columnRuleColor outlineColor textDecorationColor textEmphasisColor",

	// plusequals test for += 100 -= 100
	rplusequals = /^([\-+])=\s*(\d+\.?\d*)/,
	// a set of RE's that can match strings and generate color tuples.
	stringParsers = [{
			re: /rgba?\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*(?:,\s*(\d?(?:\.\d+)?)\s*)?\)/,
			parse: function( execResult ) {
				return [
					execResult[ 1 ],
					execResult[ 2 ],
					execResult[ 3 ],
					execResult[ 4 ]
				];
			}
		}, {
			re: /rgba?\(\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*(?:,\s*(\d?(?:\.\d+)?)\s*)?\)/,
			parse: function( execResult ) {
				return [
					execResult[ 1 ] * 2.55,
					execResult[ 2 ] * 2.55,
					execResult[ 3 ] * 2.55,
					execResult[ 4 ]
				];
			}
		}, {
			// this regex ignores A-F because it's compared against an already lowercased string
			re: /#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})/,
			parse: function( execResult ) {
				return [
					parseInt( execResult[ 1 ], 16 ),
					parseInt( execResult[ 2 ], 16 ),
					parseInt( execResult[ 3 ], 16 )
				];
			}
		}, {
			// this regex ignores A-F because it's compared against an already lowercased string
			re: /#([a-f0-9])([a-f0-9])([a-f0-9])/,
			parse: function( execResult ) {
				return [
					parseInt( execResult[ 1 ] + execResult[ 1 ], 16 ),
					parseInt( execResult[ 2 ] + execResult[ 2 ], 16 ),
					parseInt( execResult[ 3 ] + execResult[ 3 ], 16 )
				];
			}
		}, {
			re: /hsla?\(\s*(\d+(?:\.\d+)?)\s*,\s*(\d+(?:\.\d+)?)\%\s*,\s*(\d+(?:\.\d+)?)\%\s*(?:,\s*(\d?(?:\.\d+)?)\s*)?\)/,
			space: "hsla",
			parse: function( execResult ) {
				return [
					execResult[ 1 ],
					execResult[ 2 ] / 100,
					execResult[ 3 ] / 100,
					execResult[ 4 ]
				];
			}
		}],

	// jQuery.Color( )
	color = jQuery.Color = function( color, green, blue, alpha ) {
		return new jQuery.Color.fn.parse( color, green, blue, alpha );
	},
	spaces = {
		rgba: {
			props: {
				red: {
					idx: 0,
					type: "byte"
				},
				green: {
					idx: 1,
					type: "byte"
				},
				blue: {
					idx: 2,
					type: "byte"
				}
			}
		},

		hsla: {
			props: {
				hue: {
					idx: 0,
					type: "degrees"
				},
				saturation: {
					idx: 1,
					type: "percent"
				},
				lightness: {
					idx: 2,
					type: "percent"
				}
			}
		}
	},
	propTypes = {
		"byte": {
			floor: true,
			max: 255
		},
		"percent": {
			max: 1
		},
		"degrees": {
			mod: 360,
			floor: true
		}
	},
	support = color.support = {},

	// element for support tests
	supportElem = jQuery( "<p>" )[ 0 ],

	// colors = jQuery.Color.names
	colors,

	// local aliases of functions called often
	each = jQuery.each;

// determine rgba support immediately
supportElem.style.cssText = "background-color:rgba(1,1,1,.5)";
support.rgba = supportElem.style.backgroundColor.indexOf( "rgba" ) > -1;

// define cache name and alpha properties
// for rgba and hsla spaces
each( spaces, function( spaceName, space ) {
	space.cache = "_" + spaceName;
	space.props.alpha = {
		idx: 3,
		type: "percent",
		def: 1
	};
});

function clamp( value, prop, allowEmpty ) {
	var type = propTypes[ prop.type ] || {};

	if ( value == null ) {
		return (allowEmpty || !prop.def) ? null : prop.def;
	}

	// ~~ is an short way of doing floor for positive numbers
	value = type.floor ? ~~value : parseFloat( value );

	// IE will pass in empty strings as value for alpha,
	// which will hit this case
	if ( isNaN( value ) ) {
		return prop.def;
	}

	if ( type.mod ) {
		// we add mod before modding to make sure that negatives values
		// get converted properly: -10 -> 350
		return (value + type.mod) % type.mod;
	}

	// for now all property types without mod have min and max
	return 0 > value ? 0 : type.max < value ? type.max : value;
}

function stringParse( string ) {
	var inst = color(),
		rgba = inst._rgba = [];

	string = string.toLowerCase();

	each( stringParsers, function( i, parser ) {
		var parsed,
			match = parser.re.exec( string ),
			values = match && parser.parse( match ),
			spaceName = parser.space || "rgba";

		if ( values ) {
			parsed = inst[ spaceName ]( values );

			// if this was an rgba parse the assignment might happen twice
			// oh well....
			inst[ spaces[ spaceName ].cache ] = parsed[ spaces[ spaceName ].cache ];
			rgba = inst._rgba = parsed._rgba;

			// exit each( stringParsers ) here because we matched
			return false;
		}
	});

	// Found a stringParser that handled it
	if ( rgba.length ) {

		// if this came from a parsed string, force "transparent" when alpha is 0
		// chrome, (and maybe others) return "transparent" as rgba(0,0,0,0)
		if ( rgba.join() === "0,0,0,0" ) {
			jQuery.extend( rgba, colors.transparent );
		}
		return inst;
	}

	// named colors
	return colors[ string ];
}

color.fn = jQuery.extend( color.prototype, {
	parse: function( red, green, blue, alpha ) {
		if ( red === undefined ) {
			this._rgba = [ null, null, null, null ];
			return this;
		}
		if ( red.jquery || red.nodeType ) {
			red = jQuery( red ).css( green );
			green = undefined;
		}

		var inst = this,
			type = jQuery.type( red ),
			rgba = this._rgba = [];

		// more than 1 argument specified - assume ( red, green, blue, alpha )
		if ( green !== undefined ) {
			red = [ red, green, blue, alpha ];
			type = "array";
		}

		if ( type === "string" ) {
			return this.parse( stringParse( red ) || colors._default );
		}

		if ( type === "array" ) {
			each( spaces.rgba.props, function( key, prop ) {
				rgba[ prop.idx ] = clamp( red[ prop.idx ], prop );
			});
			return this;
		}

		if ( type === "object" ) {
			if ( red instanceof color ) {
				each( spaces, function( spaceName, space ) {
					if ( red[ space.cache ] ) {
						inst[ space.cache ] = red[ space.cache ].slice();
					}
				});
			} else {
				each( spaces, function( spaceName, space ) {
					var cache = space.cache;
					each( space.props, function( key, prop ) {

						// if the cache doesn't exist, and we know how to convert
						if ( !inst[ cache ] && space.to ) {

							// if the value was null, we don't need to copy it
							// if the key was alpha, we don't need to copy it either
							if ( key === "alpha" || red[ key ] == null ) {
								return;
							}
							inst[ cache ] = space.to( inst._rgba );
						}

						// this is the only case where we allow nulls for ALL properties.
						// call clamp with alwaysAllowEmpty
						inst[ cache ][ prop.idx ] = clamp( red[ key ], prop, true );
					});

					// everything defined but alpha?
					if ( inst[ cache ] && jQuery.inArray( null, inst[ cache ].slice( 0, 3 ) ) < 0 ) {
						// use the default of 1
						inst[ cache ][ 3 ] = 1;
						if ( space.from ) {
							inst._rgba = space.from( inst[ cache ] );
						}
					}
				});
			}
			return this;
		}
	},
	is: function( compare ) {
		var is = color( compare ),
			same = true,
			inst = this;

		each( spaces, function( _, space ) {
			var localCache,
				isCache = is[ space.cache ];
			if (isCache) {
				localCache = inst[ space.cache ] || space.to && space.to( inst._rgba ) || [];
				each( space.props, function( _, prop ) {
					if ( isCache[ prop.idx ] != null ) {
						same = ( isCache[ prop.idx ] === localCache[ prop.idx ] );
						return same;
					}
				});
			}
			return same;
		});
		return same;
	},
	_space: function() {
		var used = [],
			inst = this;
		each( spaces, function( spaceName, space ) {
			if ( inst[ space.cache ] ) {
				used.push( spaceName );
			}
		});
		return used.pop();
	},
	transition: function( other, distance ) {
		var end = color( other ),
			spaceName = end._space(),
			space = spaces[ spaceName ],
			startColor = this.alpha() === 0 ? color( "transparent" ) : this,
			start = startColor[ space.cache ] || space.to( startColor._rgba ),
			result = start.slice();

		end = end[ space.cache ];
		each( space.props, function( key, prop ) {
			var index = prop.idx,
				startValue = start[ index ],
				endValue = end[ index ],
				type = propTypes[ prop.type ] || {};

			// if null, don't override start value
			if ( endValue === null ) {
				return;
			}
			// if null - use end
			if ( startValue === null ) {
				result[ index ] = endValue;
			} else {
				if ( type.mod ) {
					if ( endValue - startValue > type.mod / 2 ) {
						startValue += type.mod;
					} else if ( startValue - endValue > type.mod / 2 ) {
						startValue -= type.mod;
					}
				}
				result[ index ] = clamp( ( endValue - startValue ) * distance + startValue, prop );
			}
		});
		return this[ spaceName ]( result );
	},
	blend: function( opaque ) {
		// if we are already opaque - return ourself
		if ( this._rgba[ 3 ] === 1 ) {
			return this;
		}

		var rgb = this._rgba.slice(),
			a = rgb.pop(),
			blend = color( opaque )._rgba;

		return color( jQuery.map( rgb, function( v, i ) {
			return ( 1 - a ) * blend[ i ] + a * v;
		}));
	},
	toRgbaString: function() {
		var prefix = "rgba(",
			rgba = jQuery.map( this._rgba, function( v, i ) {
				return v == null ? ( i > 2 ? 1 : 0 ) : v;
			});

		if ( rgba[ 3 ] === 1 ) {
			rgba.pop();
			prefix = "rgb(";
		}

		return prefix + rgba.join() + ")";
	},
	toHslaString: function() {
		var prefix = "hsla(",
			hsla = jQuery.map( this.hsla(), function( v, i ) {
				if ( v == null ) {
					v = i > 2 ? 1 : 0;
				}

				// catch 1 and 2
				if ( i && i < 3 ) {
					v = Math.round( v * 100 ) + "%";
				}
				return v;
			});

		if ( hsla[ 3 ] === 1 ) {
			hsla.pop();
			prefix = "hsl(";
		}
		return prefix + hsla.join() + ")";
	},
	toHexString: function( includeAlpha ) {
		var rgba = this._rgba.slice(),
			alpha = rgba.pop();

		if ( includeAlpha ) {
			rgba.push( ~~( alpha * 255 ) );
		}

		return "#" + jQuery.map( rgba, function( v ) {

			// default to 0 when nulls exist
			v = ( v || 0 ).toString( 16 );
			return v.length === 1 ? "0" + v : v;
		}).join("");
	},
	toString: function() {
		return this._rgba[ 3 ] === 0 ? "transparent" : this.toRgbaString();
	}
});
color.fn.parse.prototype = color.fn;

// hsla conversions adapted from:
// https://code.google.com/p/maashaack/source/browse/packages/graphics/trunk/src/graphics/colors/HUE2RGB.as?r=5021

function hue2rgb( p, q, h ) {
	h = ( h + 1 ) % 1;
	if ( h * 6 < 1 ) {
		return p + (q - p) * h * 6;
	}
	if ( h * 2 < 1) {
		return q;
	}
	if ( h * 3 < 2 ) {
		return p + (q - p) * ((2/3) - h) * 6;
	}
	return p;
}

spaces.hsla.to = function ( rgba ) {
	if ( rgba[ 0 ] == null || rgba[ 1 ] == null || rgba[ 2 ] == null ) {
		return [ null, null, null, rgba[ 3 ] ];
	}
	var r = rgba[ 0 ] / 255,
		g = rgba[ 1 ] / 255,
		b = rgba[ 2 ] / 255,
		a = rgba[ 3 ],
		max = Math.max( r, g, b ),
		min = Math.min( r, g, b ),
		diff = max - min,
		add = max + min,
		l = add * 0.5,
		h, s;

	if ( min === max ) {
		h = 0;
	} else if ( r === max ) {
		h = ( 60 * ( g - b ) / diff ) + 360;
	} else if ( g === max ) {
		h = ( 60 * ( b - r ) / diff ) + 120;
	} else {
		h = ( 60 * ( r - g ) / diff ) + 240;
	}

	// chroma (diff) == 0 means greyscale which, by definition, saturation = 0%
	// otherwise, saturation is based on the ratio of chroma (diff) to lightness (add)
	if ( diff === 0 ) {
		s = 0;
	} else if ( l <= 0.5 ) {
		s = diff / add;
	} else {
		s = diff / ( 2 - add );
	}
	return [ Math.round(h) % 360, s, l, a == null ? 1 : a ];
};

spaces.hsla.from = function ( hsla ) {
	if ( hsla[ 0 ] == null || hsla[ 1 ] == null || hsla[ 2 ] == null ) {
		return [ null, null, null, hsla[ 3 ] ];
	}
	var h = hsla[ 0 ] / 360,
		s = hsla[ 1 ],
		l = hsla[ 2 ],
		a = hsla[ 3 ],
		q = l <= 0.5 ? l * ( 1 + s ) : l + s - l * s,
		p = 2 * l - q;

	return [
		Math.round( hue2rgb( p, q, h + ( 1 / 3 ) ) * 255 ),
		Math.round( hue2rgb( p, q, h ) * 255 ),
		Math.round( hue2rgb( p, q, h - ( 1 / 3 ) ) * 255 ),
		a
	];
};


each( spaces, function( spaceName, space ) {
	var props = space.props,
		cache = space.cache,
		to = space.to,
		from = space.from;

	// makes rgba() and hsla()
	color.fn[ spaceName ] = function( value ) {

		// generate a cache for this space if it doesn't exist
		if ( to && !this[ cache ] ) {
			this[ cache ] = to( this._rgba );
		}
		if ( value === undefined ) {
			return this[ cache ].slice();
		}

		var ret,
			type = jQuery.type( value ),
			arr = ( type === "array" || type === "object" ) ? value : arguments,
			local = this[ cache ].slice();

		each( props, function( key, prop ) {
			var val = arr[ type === "object" ? key : prop.idx ];
			if ( val == null ) {
				val = local[ prop.idx ];
			}
			local[ prop.idx ] = clamp( val, prop );
		});

		if ( from ) {
			ret = color( from( local ) );
			ret[ cache ] = local;
			return ret;
		} else {
			return color( local );
		}
	};

	// makes red() green() blue() alpha() hue() saturation() lightness()
	each( props, function( key, prop ) {
		// alpha is included in more than one space
		if ( color.fn[ key ] ) {
			return;
		}
		color.fn[ key ] = function( value ) {
			var vtype = jQuery.type( value ),
				fn = ( key === "alpha" ? ( this._hsla ? "hsla" : "rgba" ) : spaceName ),
				local = this[ fn ](),
				cur = local[ prop.idx ],
				match;

			if ( vtype === "undefined" ) {
				return cur;
			}

			if ( vtype === "function" ) {
				value = value.call( this, cur );
				vtype = jQuery.type( value );
			}
			if ( value == null && prop.empty ) {
				return this;
			}
			if ( vtype === "string" ) {
				match = rplusequals.exec( value );
				if ( match ) {
					value = cur + parseFloat( match[ 2 ] ) * ( match[ 1 ] === "+" ? 1 : -1 );
				}
			}
			local[ prop.idx ] = value;
			return this[ fn ]( local );
		};
	});
});

// add cssHook and .fx.step function for each named hook.
// accept a space separated string of properties
color.hook = function( hook ) {
	var hooks = hook.split( " " );
	each( hooks, function( i, hook ) {
		jQuery.cssHooks[ hook ] = {
			set: function( elem, value ) {
				var parsed, curElem,
					backgroundColor = "";

				if ( value !== "transparent" && ( jQuery.type( value ) !== "string" || ( parsed = stringParse( value ) ) ) ) {
					value = color( parsed || value );
					if ( !support.rgba && value._rgba[ 3 ] !== 1 ) {
						curElem = hook === "backgroundColor" ? elem.parentNode : elem;
						while (
							(backgroundColor === "" || backgroundColor === "transparent") &&
							curElem && curElem.style
						) {
							try {
								backgroundColor = jQuery.css( curElem, "backgroundColor" );
								curElem = curElem.parentNode;
							} catch ( e ) {
							}
						}

						value = value.blend( backgroundColor && backgroundColor !== "transparent" ?
							backgroundColor :
							"_default" );
					}

					value = value.toRgbaString();
				}
				try {
					elem.style[ hook ] = value;
				} catch( e ) {
					// wrapped to prevent IE from throwing errors on "invalid" values like 'auto' or 'inherit'
				}
			}
		};
		jQuery.fx.step[ hook ] = function( fx ) {
			if ( !fx.colorInit ) {
				fx.start = color( fx.elem, hook );
				fx.end = color( fx.end );
				fx.colorInit = true;
			}
			jQuery.cssHooks[ hook ].set( fx.elem, fx.start.transition( fx.end, fx.pos ) );
		};
	});

};

color.hook( stepHooks );

jQuery.cssHooks.borderColor = {
	expand: function( value ) {
		var expanded = {};

		each( [ "Top", "Right", "Bottom", "Left" ], function( i, part ) {
			expanded[ "border" + part + "Color" ] = value;
		});
		return expanded;
	}
};

// Basic color names only.
// Usage of any of the other color names requires adding yourself or including
// jquery.color.svg-names.js.
colors = jQuery.Color.names = {
	// 4.1. Basic color keywords
	aqua: "#00ffff",
	black: "#000000",
	blue: "#0000ff",
	fuchsia: "#ff00ff",
	gray: "#808080",
	green: "#008000",
	lime: "#00ff00",
	maroon: "#800000",
	navy: "#000080",
	olive: "#808000",
	purple: "#800080",
	red: "#ff0000",
	silver: "#c0c0c0",
	teal: "#008080",
	white: "#ffffff",
	yellow: "#ffff00",

	// 4.2.3. "transparent" color keyword
	transparent: [ null, null, null, 0 ],

	_default: "#ffffff"
};

})( jQuery );


/******************************************************************************/
/****************************** CLASS ANIMATIONS ******************************/
/******************************************************************************/
(function() {

var classAnimationActions = [ "add", "remove", "toggle" ],
	shorthandStyles = {
		border: 1,
		borderBottom: 1,
		borderColor: 1,
		borderLeft: 1,
		borderRight: 1,
		borderTop: 1,
		borderWidth: 1,
		margin: 1,
		padding: 1
	};

$.each([ "borderLeftStyle", "borderRightStyle", "borderBottomStyle", "borderTopStyle" ], function( _, prop ) {
	$.fx.step[ prop ] = function( fx ) {
		if ( fx.end !== "none" && !fx.setAttr || fx.pos === 1 && !fx.setAttr ) {
			jQuery.style( fx.elem, prop, fx.end );
			fx.setAttr = true;
		}
	};
});

function getElementStyles( elem ) {
	var key, len,
		style = elem.ownerDocument.defaultView ?
			elem.ownerDocument.defaultView.getComputedStyle( elem, null ) :
			elem.currentStyle,
		styles = {};

	if ( style && style.length && style[ 0 ] && style[ style[ 0 ] ] ) {
		len = style.length;
		while ( len-- ) {
			key = style[ len ];
			if ( typeof style[ key ] === "string" ) {
				styles[ $.camelCase( key ) ] = style[ key ];
			}
		}
	// support: Opera, IE <9
	} else {
		for ( key in style ) {
			if ( typeof style[ key ] === "string" ) {
				styles[ key ] = style[ key ];
			}
		}
	}

	return styles;
}


function styleDifference( oldStyle, newStyle ) {
	var diff = {},
		name, value;

	for ( name in newStyle ) {
		value = newStyle[ name ];
		if ( oldStyle[ name ] !== value ) {
			if ( !shorthandStyles[ name ] ) {
				if ( $.fx.step[ name ] || !isNaN( parseFloat( value ) ) ) {
					diff[ name ] = value;
				}
			}
		}
	}

	return diff;
}

// support: jQuery <1.8
if ( !$.fn.addBack ) {
	$.fn.addBack = function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	};
}

$.effects.animateClass = function( value, duration, easing, callback ) {
	var o = $.speed( duration, easing, callback );

	return this.queue( function() {
		var animated = $( this ),
			baseClass = animated.attr( "class" ) || "",
			applyClassChange,
			allAnimations = o.children ? animated.find( "*" ).addBack() : animated;

		// map the animated objects to store the original styles.
		allAnimations = allAnimations.map(function() {
			var el = $( this );
			return {
				el: el,
				start: getElementStyles( this )
			};
		});

		// apply class change
		applyClassChange = function() {
			$.each( classAnimationActions, function(i, action) {
				if ( value[ action ] ) {
					animated[ action + "Class" ]( value[ action ] );
				}
			});
		};
		applyClassChange();

		// map all animated objects again - calculate new styles and diff
		allAnimations = allAnimations.map(function() {
			this.end = getElementStyles( this.el[ 0 ] );
			this.diff = styleDifference( this.start, this.end );
			return this;
		});

		// apply original class
		animated.attr( "class", baseClass );

		// map all animated objects again - this time collecting a promise
		allAnimations = allAnimations.map(function() {
			var styleInfo = this,
				dfd = $.Deferred(),
				opts = $.extend({}, o, {
					queue: false,
					complete: function() {
						dfd.resolve( styleInfo );
					}
				});

			this.el.animate( this.diff, opts );
			return dfd.promise();
		});

		// once all animations have completed:
		$.when.apply( $, allAnimations.get() ).done(function() {

			// set the final class
			applyClassChange();

			// for each animated element,
			// clear all css properties that were animated
			$.each( arguments, function() {
				var el = this.el;
				$.each( this.diff, function(key) {
					el.css( key, "" );
				});
			});

			// this is guarnteed to be there if you use jQuery.speed()
			// it also handles dequeuing the next anim...
			o.complete.call( animated[ 0 ] );
		});
	});
};

$.fn.extend({
	addClass: (function( orig ) {
		return function( classNames, speed, easing, callback ) {
			return speed ?
				$.effects.animateClass.call( this,
					{ add: classNames }, speed, easing, callback ) :
				orig.apply( this, arguments );
		};
	})( $.fn.addClass ),

	removeClass: (function( orig ) {
		return function( classNames, speed, easing, callback ) {
			return arguments.length > 1 ?
				$.effects.animateClass.call( this,
					{ remove: classNames }, speed, easing, callback ) :
				orig.apply( this, arguments );
		};
	})( $.fn.removeClass ),

	toggleClass: (function( orig ) {
		return function( classNames, force, speed, easing, callback ) {
			if ( typeof force === "boolean" || force === undefined ) {
				if ( !speed ) {
					// without speed parameter
					return orig.apply( this, arguments );
				} else {
					return $.effects.animateClass.call( this,
						(force ? { add: classNames } : { remove: classNames }),
						speed, easing, callback );
				}
			} else {
				// without force parameter
				return $.effects.animateClass.call( this,
					{ toggle: classNames }, force, speed, easing );
			}
		};
	})( $.fn.toggleClass ),

	switchClass: function( remove, add, speed, easing, callback) {
		return $.effects.animateClass.call( this, {
			add: add,
			remove: remove
		}, speed, easing, callback );
	}
});

})();

/******************************************************************************/
/*********************************** EFFECTS **********************************/
/******************************************************************************/

(function() {

$.extend( $.effects, {
	version: "1.10.3",

	// Saves a set of properties in a data storage
	save: function( element, set ) {
		for( var i=0; i < set.length; i++ ) {
			if ( set[ i ] !== null ) {
				element.data( dataSpace + set[ i ], element[ 0 ].style[ set[ i ] ] );
			}
		}
	},

	// Restores a set of previously saved properties from a data storage
	restore: function( element, set ) {
		var val, i;
		for( i=0; i < set.length; i++ ) {
			if ( set[ i ] !== null ) {
				val = element.data( dataSpace + set[ i ] );
				// support: jQuery 1.6.2
				// http://bugs.jquery.com/ticket/9917
				// jQuery 1.6.2 incorrectly returns undefined for any falsy value.
				// We can't differentiate between "" and 0 here, so we just assume
				// empty string since it's likely to be a more common value...
				if ( val === undefined ) {
					val = "";
				}
				element.css( set[ i ], val );
			}
		}
	},

	setMode: function( el, mode ) {
		if (mode === "toggle") {
			mode = el.is( ":hidden" ) ? "show" : "hide";
		}
		return mode;
	},

	// Translates a [top,left] array into a baseline value
	// this should be a little more flexible in the future to handle a string & hash
	getBaseline: function( origin, original ) {
		var y, x;
		switch ( origin[ 0 ] ) {
			case "top": y = 0; break;
			case "middle": y = 0.5; break;
			case "bottom": y = 1; break;
			default: y = origin[ 0 ] / original.height;
		}
		switch ( origin[ 1 ] ) {
			case "left": x = 0; break;
			case "center": x = 0.5; break;
			case "right": x = 1; break;
			default: x = origin[ 1 ] / original.width;
		}
		return {
			x: x,
			y: y
		};
	},

	// Wraps the element around a wrapper that copies position properties
	createWrapper: function( element ) {

		// if the element is already wrapped, return it
		if ( element.parent().is( ".ui-effects-wrapper" )) {
			return element.parent();
		}

		// wrap the element
		var props = {
				width: element.outerWidth(true),
				height: element.outerHeight(true),
				"float": element.css( "float" )
			},
			wrapper = $( "<div></div>" )
				.addClass( "ui-effects-wrapper" )
				.css({
					fontSize: "100%",
					background: "transparent",
					border: "none",
					margin: 0,
					padding: 0
				}),
			// Store the size in case width/height are defined in % - Fixes #5245
			size = {
				width: element.width(),
				height: element.height()
			},
			active = document.activeElement;

		// support: Firefox
		// Firefox incorrectly exposes anonymous content
		// https://bugzilla.mozilla.org/show_bug.cgi?id=561664
		try {
			active.id;
		} catch( e ) {
			active = document.body;
		}

		element.wrap( wrapper );

		// Fixes #7595 - Elements lose focus when wrapped.
		if ( element[ 0 ] === active || $.contains( element[ 0 ], active ) ) {
			$( active ).focus();
		}

		wrapper = element.parent(); //Hotfix for jQuery 1.4 since some change in wrap() seems to actually lose the reference to the wrapped element

		// transfer positioning properties to the wrapper
		if ( element.css( "position" ) === "static" ) {
			wrapper.css({ position: "relative" });
			element.css({ position: "relative" });
		} else {
			$.extend( props, {
				position: element.css( "position" ),
				zIndex: element.css( "z-index" )
			});
			$.each([ "top", "left", "bottom", "right" ], function(i, pos) {
				props[ pos ] = element.css( pos );
				if ( isNaN( parseInt( props[ pos ], 10 ) ) ) {
					props[ pos ] = "auto";
				}
			});
			element.css({
				position: "relative",
				top: 0,
				left: 0,
				right: "auto",
				bottom: "auto"
			});
		}
		element.css(size);

		return wrapper.css( props ).show();
	},

	removeWrapper: function( element ) {
		var active = document.activeElement;

		if ( element.parent().is( ".ui-effects-wrapper" ) ) {
			element.parent().replaceWith( element );

			// Fixes #7595 - Elements lose focus when wrapped.
			if ( element[ 0 ] === active || $.contains( element[ 0 ], active ) ) {
				$( active ).focus();
			}
		}


		return element;
	},

	setTransition: function( element, list, factor, value ) {
		value = value || {};
		$.each( list, function( i, x ) {
			var unit = element.cssUnit( x );
			if ( unit[ 0 ] > 0 ) {
				value[ x ] = unit[ 0 ] * factor + unit[ 1 ];
			}
		});
		return value;
	}
});

// return an effect options object for the given parameters:
function _normalizeArguments( effect, options, speed, callback ) {

	// allow passing all options as the first parameter
	if ( $.isPlainObject( effect ) ) {
		options = effect;
		effect = effect.effect;
	}

	// convert to an object
	effect = { effect: effect };

	// catch (effect, null, ...)
	if ( options == null ) {
		options = {};
	}

	// catch (effect, callback)
	if ( $.isFunction( options ) ) {
		callback = options;
		speed = null;
		options = {};
	}

	// catch (effect, speed, ?)
	if ( typeof options === "number" || $.fx.speeds[ options ] ) {
		callback = speed;
		speed = options;
		options = {};
	}

	// catch (effect, options, callback)
	if ( $.isFunction( speed ) ) {
		callback = speed;
		speed = null;
	}

	// add options to effect
	if ( options ) {
		$.extend( effect, options );
	}

	speed = speed || options.duration;
	effect.duration = $.fx.off ? 0 :
		typeof speed === "number" ? speed :
		speed in $.fx.speeds ? $.fx.speeds[ speed ] :
		$.fx.speeds._default;

	effect.complete = callback || options.complete;

	return effect;
}

function standardAnimationOption( option ) {
	// Valid standard speeds (nothing, number, named speed)
	if ( !option || typeof option === "number" || $.fx.speeds[ option ] ) {
		return true;
	}

	// Invalid strings - treat as "normal" speed
	if ( typeof option === "string" && !$.effects.effect[ option ] ) {
		return true;
	}

	// Complete callback
	if ( $.isFunction( option ) ) {
		return true;
	}

	// Options hash (but not naming an effect)
	if ( typeof option === "object" && !option.effect ) {
		return true;
	}

	// Didn't match any standard API
	return false;
}

$.fn.extend({
	effect: function( /* effect, options, speed, callback */ ) {
		var args = _normalizeArguments.apply( this, arguments ),
			mode = args.mode,
			queue = args.queue,
			effectMethod = $.effects.effect[ args.effect ];

		if ( $.fx.off || !effectMethod ) {
			// delegate to the original method (e.g., .show()) if possible
			if ( mode ) {
				return this[ mode ]( args.duration, args.complete );
			} else {
				return this.each( function() {
					if ( args.complete ) {
						args.complete.call( this );
					}
				});
			}
		}

		function run( next ) {
			var elem = $( this ),
				complete = args.complete,
				mode = args.mode;

			function done() {
				if ( $.isFunction( complete ) ) {
					complete.call( elem[0] );
				}
				if ( $.isFunction( next ) ) {
					next();
				}
			}

			// If the element already has the correct final state, delegate to
			// the core methods so the internal tracking of "olddisplay" works.
			if ( elem.is( ":hidden" ) ? mode === "hide" : mode === "show" ) {
				elem[ mode ]();
				done();
			} else {
				effectMethod.call( elem[0], args, done );
			}
		}

		return queue === false ? this.each( run ) : this.queue( queue || "fx", run );
	},

	show: (function( orig ) {
		return function( option ) {
			if ( standardAnimationOption( option ) ) {
				return orig.apply( this, arguments );
			} else {
				var args = _normalizeArguments.apply( this, arguments );
				args.mode = "show";
				return this.effect.call( this, args );
			}
		};
	})( $.fn.show ),

	hide: (function( orig ) {
		return function( option ) {
			if ( standardAnimationOption( option ) ) {
				return orig.apply( this, arguments );
			} else {
				var args = _normalizeArguments.apply( this, arguments );
				args.mode = "hide";
				return this.effect.call( this, args );
			}
		};
	})( $.fn.hide ),

	toggle: (function( orig ) {
		return function( option ) {
			if ( standardAnimationOption( option ) || typeof option === "boolean" ) {
				return orig.apply( this, arguments );
			} else {
				var args = _normalizeArguments.apply( this, arguments );
				args.mode = "toggle";
				return this.effect.call( this, args );
			}
		};
	})( $.fn.toggle ),

	// helper functions
	cssUnit: function(key) {
		var style = this.css( key ),
			val = [];

		$.each( [ "em", "px", "%", "pt" ], function( i, unit ) {
			if ( style.indexOf( unit ) > 0 ) {
				val = [ parseFloat( style ), unit ];
			}
		});
		return val;
	}
});

})();

/******************************************************************************/
/*********************************** EASING ***********************************/
/******************************************************************************/

(function() {

// based on easing equations from Robert Penner (http://www.robertpenner.com/easing)

var baseEasings = {};

$.each( [ "Quad", "Cubic", "Quart", "Quint", "Expo" ], function( i, name ) {
	baseEasings[ name ] = function( p ) {
		return Math.pow( p, i + 2 );
	};
});

$.extend( baseEasings, {
	Sine: function ( p ) {
		return 1 - Math.cos( p * Math.PI / 2 );
	},
	Circ: function ( p ) {
		return 1 - Math.sqrt( 1 - p * p );
	},
	Elastic: function( p ) {
		return p === 0 || p === 1 ? p :
			-Math.pow( 2, 8 * (p - 1) ) * Math.sin( ( (p - 1) * 80 - 7.5 ) * Math.PI / 15 );
	},
	Back: function( p ) {
		return p * p * ( 3 * p - 2 );
	},
	Bounce: function ( p ) {
		var pow2,
			bounce = 4;

		while ( p < ( ( pow2 = Math.pow( 2, --bounce ) ) - 1 ) / 11 ) {}
		return 1 / Math.pow( 4, 3 - bounce ) - 7.5625 * Math.pow( ( pow2 * 3 - 2 ) / 22 - p, 2 );
	}
});

$.each( baseEasings, function( name, easeIn ) {
	$.easing[ "easeIn" + name ] = easeIn;
	$.easing[ "easeOut" + name ] = function( p ) {
		return 1 - easeIn( 1 - p );
	};
	$.easing[ "easeInOut" + name ] = function( p ) {
		return p < 0.5 ?
			easeIn( p * 2 ) / 2 :
			1 - easeIn( p * -2 + 2 ) / 2;
	};
});

})();

})(jQuery);

(function( $, undefined ) {

var uid = 0,
	hideProps = {},
	showProps = {};

hideProps.height = hideProps.paddingTop = hideProps.paddingBottom =
	hideProps.borderTopWidth = hideProps.borderBottomWidth = "hide";
showProps.height = showProps.paddingTop = showProps.paddingBottom =
	showProps.borderTopWidth = showProps.borderBottomWidth = "show";

$.widget( "ui.accordion", {
	version: "1.10.3",
	options: {
		active: 0,
		animate: {},
		collapsible: false,
		event: "click",
		header: "> li > :first-child,> :not(li):even",
		heightStyle: "auto",
		icons: {
			activeHeader: "ui-icon-triangle-1-s",
			header: "ui-icon-triangle-1-e"
		},

		// callbacks
		activate: null,
		beforeActivate: null
	},

	_create: function() {
		var options = this.options;
		this.prevShow = this.prevHide = $();
		this.element.addClass( "ui-accordion ui-widget ui-helper-reset" )
			// ARIA
			.attr( "role", "tablist" );

		// don't allow collapsible: false and active: false / null
		if ( !options.collapsible && (options.active === false || options.active == null) ) {
			options.active = 0;
		}

		this._processPanels();
		// handle negative values
		if ( options.active < 0 ) {
			options.active += this.headers.length;
		}
		this._refresh();
	},

	_getCreateEventData: function() {
		return {
			header: this.active,
			panel: !this.active.length ? $() : this.active.next(),
			content: !this.active.length ? $() : this.active.next()
		};
	},

	_createIcons: function() {
		var icons = this.options.icons;
		if ( icons ) {
			$( "<span>" )
				.addClass( "ui-accordion-header-icon ui-icon " + icons.header )
				.prependTo( this.headers );
			this.active.children( ".ui-accordion-header-icon" )
				.removeClass( icons.header )
				.addClass( icons.activeHeader );
			this.headers.addClass( "ui-accordion-icons" );
		}
	},

	_destroyIcons: function() {
		this.headers
			.removeClass( "ui-accordion-icons" )
			.children( ".ui-accordion-header-icon" )
				.remove();
	},

	_destroy: function() {
		var contents;

		// clean up main element
		this.element
			.removeClass( "ui-accordion ui-widget ui-helper-reset" )
			.removeAttr( "role" );

		// clean up headers
		this.headers
			.removeClass( "ui-accordion-header ui-accordion-header-active ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-state-disabled ui-corner-top" )
			.removeAttr( "role" )
			.removeAttr( "aria-selected" )
			.removeAttr( "aria-controls" )
			.removeAttr( "tabIndex" )
			.each(function() {
				if ( /^ui-accordion/.test( this.id ) ) {
					this.removeAttribute( "id" );
				}
			});
		this._destroyIcons();

		// clean up content panels
		contents = this.headers.next()
			.css( "display", "" )
			.removeAttr( "role" )
			.removeAttr( "aria-expanded" )
			.removeAttr( "aria-hidden" )
			.removeAttr( "aria-labelledby" )
			.removeClass( "ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content ui-accordion-content-active ui-state-disabled" )
			.each(function() {
				if ( /^ui-accordion/.test( this.id ) ) {
					this.removeAttribute( "id" );
				}
			});
		if ( this.options.heightStyle !== "content" ) {
			contents.css( "height", "" );
		}
	},

	_setOption: function( key, value ) {
		if ( key === "active" ) {
			// _activate() will handle invalid values and update this.options
			this._activate( value );
			return;
		}

		if ( key === "event" ) {
			if ( this.options.event ) {
				this._off( this.headers, this.options.event );
			}
			this._setupEvents( value );
		}

		this._super( key, value );

		// setting collapsible: false while collapsed; open first panel
		if ( key === "collapsible" && !value && this.options.active === false ) {
			this._activate( 0 );
		}

		if ( key === "icons" ) {
			this._destroyIcons();
			if ( value ) {
				this._createIcons();
			}
		}

		// #5332 - opacity doesn't cascade to positioned elements in IE
		// so we need to add the disabled class to the headers and panels
		if ( key === "disabled" ) {
			this.headers.add( this.headers.next() )
				.toggleClass( "ui-state-disabled", !!value );
		}
	},

	_keydown: function( event ) {
		/*jshint maxcomplexity:15*/
		if ( event.altKey || event.ctrlKey ) {
			return;
		}

		var keyCode = $.ui.keyCode,
			length = this.headers.length,
			currentIndex = this.headers.index( event.target ),
			toFocus = false;

		switch ( event.keyCode ) {
			case keyCode.RIGHT:
			case keyCode.DOWN:
				toFocus = this.headers[ ( currentIndex + 1 ) % length ];
				break;
			case keyCode.LEFT:
			case keyCode.UP:
				toFocus = this.headers[ ( currentIndex - 1 + length ) % length ];
				break;
			case keyCode.SPACE:
			case keyCode.ENTER:
				this._eventHandler( event );
				break;
			case keyCode.HOME:
				toFocus = this.headers[ 0 ];
				break;
			case keyCode.END:
				toFocus = this.headers[ length - 1 ];
				break;
		}

		if ( toFocus ) {
			$( event.target ).attr( "tabIndex", -1 );
			$( toFocus ).attr( "tabIndex", 0 );
			toFocus.focus();
			event.preventDefault();
		}
	},

	_panelKeyDown : function( event ) {
		if ( event.keyCode === $.ui.keyCode.UP && event.ctrlKey ) {
			$( event.currentTarget ).prev().focus();
		}
	},

	refresh: function() {
		var options = this.options;
		this._processPanels();

		// was collapsed or no panel
		if ( ( options.active === false && options.collapsible === true ) || !this.headers.length ) {
			options.active = false;
			this.active = $();
		// active false only when collapsible is true
		} else if ( options.active === false ) {
			this._activate( 0 );
		// was active, but active panel is gone
		} else if ( this.active.length && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
			// all remaining panel are disabled
			if ( this.headers.length === this.headers.find(".ui-state-disabled").length ) {
				options.active = false;
				this.active = $();
			// activate previous panel
			} else {
				this._activate( Math.max( 0, options.active - 1 ) );
			}
		// was active, active panel still exists
		} else {
			// make sure active index is correct
			options.active = this.headers.index( this.active );
		}

		this._destroyIcons();

		this._refresh();
	},

	_processPanels: function() {
		this.headers = this.element.find( this.options.header )
			.addClass( "ui-accordion-header ui-helper-reset ui-state-default ui-corner-all" );

		this.headers.next()
			.addClass( "ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom" )
			.filter(":not(.ui-accordion-content-active)")
			.hide();
	},

	_refresh: function() {
		var maxHeight,
			options = this.options,
			heightStyle = options.heightStyle,
			parent = this.element.parent(),
			accordionId = this.accordionId = "ui-accordion-" +
				(this.element.attr( "id" ) || ++uid);

		this.active = this._findActive( options.active )
			.addClass( "ui-accordion-header-active ui-state-active ui-corner-top" )
			.removeClass( "ui-corner-all" );
		this.active.next()
			.addClass( "ui-accordion-content-active" )
			.show();

		this.headers
			.attr( "role", "tab" )
			.each(function( i ) {
				var header = $( this ),
					headerId = header.attr( "id" ),
					panel = header.next(),
					panelId = panel.attr( "id" );
				if ( !headerId ) {
					headerId = accordionId + "-header-" + i;
					header.attr( "id", headerId );
				}
				if ( !panelId ) {
					panelId = accordionId + "-panel-" + i;
					panel.attr( "id", panelId );
				}
				header.attr( "aria-controls", panelId );
				panel.attr( "aria-labelledby", headerId );
			})
			.next()
				.attr( "role", "tabpanel" );

		this.headers
			.not( this.active )
			.attr({
				"aria-selected": "false",
				tabIndex: -1
			})
			.next()
				.attr({
					"aria-expanded": "false",
					"aria-hidden": "true"
				})
				.hide();

		// make sure at least one header is in the tab order
		if ( !this.active.length ) {
			this.headers.eq( 0 ).attr( "tabIndex", 0 );
		} else {
			this.active.attr({
				"aria-selected": "true",
				tabIndex: 0
			})
			.next()
				.attr({
					"aria-expanded": "true",
					"aria-hidden": "false"
				});
		}

		this._createIcons();

		this._setupEvents( options.event );

		if ( heightStyle === "fill" ) {
			maxHeight = parent.height();
			this.element.siblings( ":visible" ).each(function() {
				var elem = $( this ),
					position = elem.css( "position" );

				if ( position === "absolute" || position === "fixed" ) {
					return;
				}
				maxHeight -= elem.outerHeight( true );
			});

			this.headers.each(function() {
				maxHeight -= $( this ).outerHeight( true );
			});

			this.headers.next()
				.each(function() {
					$( this ).height( Math.max( 0, maxHeight -
						$( this ).innerHeight() + $( this ).height() ) );
				})
				.css( "overflow", "auto" );
		} else if ( heightStyle === "auto" ) {
			maxHeight = 0;
			this.headers.next()
				.each(function() {
					maxHeight = Math.max( maxHeight, $( this ).css( "height", "" ).height() );
				})
				.height( maxHeight );
		}
	},

	_activate: function( index ) {
		var active = this._findActive( index )[ 0 ];

		// trying to activate the already active panel
		if ( active === this.active[ 0 ] ) {
			return;
		}

		// trying to collapse, simulate a click on the currently active header
		active = active || this.active[ 0 ];

		this._eventHandler({
			target: active,
			currentTarget: active,
			preventDefault: $.noop
		});
	},

	_findActive: function( selector ) {
		return typeof selector === "number" ? this.headers.eq( selector ) : $();
	},

	_setupEvents: function( event ) {
		var events = {
			keydown: "_keydown"
		};
		if ( event ) {
			$.each( event.split(" "), function( index, eventName ) {
				events[ eventName ] = "_eventHandler";
			});
		}

		this._off( this.headers.add( this.headers.next() ) );
		this._on( this.headers, events );
		this._on( this.headers.next(), { keydown: "_panelKeyDown" });
		this._hoverable( this.headers );
		this._focusable( this.headers );
	},

	_eventHandler: function( event ) {
		var options = this.options,
			active = this.active,
			clicked = $( event.currentTarget ),
			clickedIsActive = clicked[ 0 ] === active[ 0 ],
			collapsing = clickedIsActive && options.collapsible,
			toShow = collapsing ? $() : clicked.next(),
			toHide = active.next(),
			eventData = {
				oldHeader: active,
				oldPanel: toHide,
				newHeader: collapsing ? $() : clicked,
				newPanel: toShow
			};

		event.preventDefault();

		if (
				// click on active header, but not collapsible
				( clickedIsActive && !options.collapsible ) ||
				// allow canceling activation
				( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
			return;
		}

		options.active = collapsing ? false : this.headers.index( clicked );

		// when the call to ._toggle() comes after the class changes
		// it causes a very odd bug in IE 8 (see #6720)
		this.active = clickedIsActive ? $() : clicked;
		this._toggle( eventData );

		// switch classes
		// corner classes on the previously active header stay after the animation
		active.removeClass( "ui-accordion-header-active ui-state-active" );
		if ( options.icons ) {
			active.children( ".ui-accordion-header-icon" )
				.removeClass( options.icons.activeHeader )
				.addClass( options.icons.header );
		}

		if ( !clickedIsActive ) {
			clicked
				.removeClass( "ui-corner-all" )
				.addClass( "ui-accordion-header-active ui-state-active ui-corner-top" );
			if ( options.icons ) {
				clicked.children( ".ui-accordion-header-icon" )
					.removeClass( options.icons.header )
					.addClass( options.icons.activeHeader );
			}

			clicked
				.next()
				.addClass( "ui-accordion-content-active" );
		}
	},

	_toggle: function( data ) {
		var toShow = data.newPanel,
			toHide = this.prevShow.length ? this.prevShow : data.oldPanel;

		// handle activating a panel during the animation for another activation
		this.prevShow.add( this.prevHide ).stop( true, true );
		this.prevShow = toShow;
		this.prevHide = toHide;

		if ( this.options.animate ) {
			this._animate( toShow, toHide, data );
		} else {
			toHide.hide();
			toShow.show();
			this._toggleComplete( data );
		}

		toHide.attr({
			"aria-expanded": "false",
			"aria-hidden": "true"
		});
		toHide.prev().attr( "aria-selected", "false" );
		// if we're switching panels, remove the old header from the tab order
		// if we're opening from collapsed state, remove the previous header from the tab order
		// if we're collapsing, then keep the collapsing header in the tab order
		if ( toShow.length && toHide.length ) {
			toHide.prev().attr( "tabIndex", -1 );
		} else if ( toShow.length ) {
			this.headers.filter(function() {
				return $( this ).attr( "tabIndex" ) === 0;
			})
			.attr( "tabIndex", -1 );
		}

		toShow
			.attr({
				"aria-expanded": "true",
				"aria-hidden": "false"
			})
			.prev()
				.attr({
					"aria-selected": "true",
					tabIndex: 0
				});
	},

	_animate: function( toShow, toHide, data ) {
		var total, easing, duration,
			that = this,
			adjust = 0,
			down = toShow.length &&
				( !toHide.length || ( toShow.index() < toHide.index() ) ),
			animate = this.options.animate || {},
			options = down && animate.down || animate,
			complete = function() {
				that._toggleComplete( data );
			};

		if ( typeof options === "number" ) {
			duration = options;
		}
		if ( typeof options === "string" ) {
			easing = options;
		}
		// fall back from options to animation in case of partial down settings
		easing = easing || options.easing || animate.easing;
		duration = duration || options.duration || animate.duration;

		if ( !toHide.length ) {
			return toShow.animate( showProps, duration, easing, complete );
		}
		if ( !toShow.length ) {
			return toHide.animate( hideProps, duration, easing, complete );
		}

		total = toShow.show().outerHeight();
		toHide.animate( hideProps, {
			duration: duration,
			easing: easing,
			step: function( now, fx ) {
				fx.now = Math.round( now );
			}
		});
		toShow
			.hide()
			.animate( showProps, {
				duration: duration,
				easing: easing,
				complete: complete,
				step: function( now, fx ) {
					fx.now = Math.round( now );
					if ( fx.prop !== "height" ) {
						adjust += fx.now;
					} else if ( that.options.heightStyle !== "content" ) {
						fx.now = Math.round( total - toHide.outerHeight() - adjust );
						adjust = 0;
					}
				}
			});
	},

	_toggleComplete: function( data ) {
		var toHide = data.oldPanel;

		toHide
			.removeClass( "ui-accordion-content-active" )
			.prev()
				.removeClass( "ui-corner-top" )
				.addClass( "ui-corner-all" );

		// Work around for rendering bug in IE (#5421)
		if ( toHide.length ) {
			toHide.parent()[0].className = toHide.parent()[0].className;
		}

		this._trigger( "activate", null, data );
	}
});

})( jQuery );

(function( $, undefined ) {

// used to prevent race conditions with remote data sources
var requestIndex = 0;

$.widget( "ui.autocomplete", {
	version: "1.10.3",
	defaultElement: "<input>",
	options: {
		appendTo: null,
		autoFocus: false,
		delay: 300,
		minLength: 1,
		position: {
			my: "left top",
			at: "left bottom",
			collision: "none"
		},
		source: null,

		// callbacks
		change: null,
		close: null,
		focus: null,
		open: null,
		response: null,
		search: null,
		select: null
	},

	pending: 0,

	_create: function() {
		// Some browsers only repeat keydown events, not keypress events,
		// so we use the suppressKeyPress flag to determine if we've already
		// handled the keydown event. #7269
		// Unfortunately the code for & in keypress is the same as the up arrow,
		// so we use the suppressKeyPressRepeat flag to avoid handling keypress
		// events when we know the keydown event was used to modify the
		// search term. #7799
		var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
			nodeName = this.element[0].nodeName.toLowerCase(),
			isTextarea = nodeName === "textarea",
			isInput = nodeName === "input";

		this.isMultiLine =
			// Textareas are always multi-line
			isTextarea ? true :
			// Inputs are always single-line, even if inside a contentEditable element
			// IE also treats inputs as contentEditable
			isInput ? false :
			// All other element types are determined by whether or not they're contentEditable
			this.element.prop( "isContentEditable" );

		this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ];
		this.isNewMenu = true;

		this.element
			.addClass( "ui-autocomplete-input" )
			.attr( "autocomplete", "off" );

		this._on( this.element, {
			keydown: function( event ) {
				/*jshint maxcomplexity:15*/
				if ( this.element.prop( "readOnly" ) ) {
					suppressKeyPress = true;
					suppressInput = true;
					suppressKeyPressRepeat = true;
					return;
				}

				suppressKeyPress = false;
				suppressInput = false;
				suppressKeyPressRepeat = false;
				var keyCode = $.ui.keyCode;
				switch( event.keyCode ) {
				case keyCode.PAGE_UP:
					suppressKeyPress = true;
					this._move( "previousPage", event );
					break;
				case keyCode.PAGE_DOWN:
					suppressKeyPress = true;
					this._move( "nextPage", event );
					break;
				case keyCode.UP:
					suppressKeyPress = true;
					this._keyEvent( "previous", event );
					break;
				case keyCode.DOWN:
					suppressKeyPress = true;
					this._keyEvent( "next", event );
					break;
				case keyCode.ENTER:
				case keyCode.NUMPAD_ENTER:
					// when menu is open and has focus
					if ( this.menu.active ) {
						// #6055 - Opera still allows the keypress to occur
						// which causes forms to submit
						suppressKeyPress = true;
						event.preventDefault();
						this.menu.select( event );
					}
					break;
				case keyCode.TAB:
					if ( this.menu.active ) {
						this.menu.select( event );
					}
					break;
				case keyCode.ESCAPE:
					if ( this.menu.element.is( ":visible" ) ) {
						this._value( this.term );
						this.close( event );
						// Different browsers have different default behavior for escape
						// Single press can mean undo or clear
						// Double press in IE means clear the whole form
						event.preventDefault();
					}
					break;
				default:
					suppressKeyPressRepeat = true;
					// search timeout should be triggered before the input value is changed
					this._searchTimeout( event );
					break;
				}
			},
			keypress: function( event ) {
				if ( suppressKeyPress ) {
					suppressKeyPress = false;
					if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
						event.preventDefault();
					}
					return;
				}
				if ( suppressKeyPressRepeat ) {
					return;
				}

				// replicate some key handlers to allow them to repeat in Firefox and Opera
				var keyCode = $.ui.keyCode;
				switch( event.keyCode ) {
				case keyCode.PAGE_UP:
					this._move( "previousPage", event );
					break;
				case keyCode.PAGE_DOWN:
					this._move( "nextPage", event );
					break;
				case keyCode.UP:
					this._keyEvent( "previous", event );
					break;
				case keyCode.DOWN:
					this._keyEvent( "next", event );
					break;
				}
			},
			input: function( event ) {
				if ( suppressInput ) {
					suppressInput = false;
					event.preventDefault();
					return;
				}
				this._searchTimeout( event );
			},
			focus: function() {
				this.selectedItem = null;
				this.previous = this._value();
			},
			blur: function( event ) {
				if ( this.cancelBlur ) {
					delete this.cancelBlur;
					return;
				}

				clearTimeout( this.searching );
				this.close( event );
				this._change( event );
			}
		});

		this._initSource();
		this.menu = $( "<ul>" )
			.addClass( "ui-autocomplete ui-front" )
			.appendTo( this._appendTo() )
			.menu({
				// disable ARIA support, the live region takes care of that
				role: null
			})
			.hide()
			.data( "ui-menu" );

		this._on( this.menu.element, {
			mousedown: function( event ) {
				// prevent moving focus out of the text field
				event.preventDefault();

				// IE doesn't prevent moving focus even with event.preventDefault()
				// so we set a flag to know when we should ignore the blur event
				this.cancelBlur = true;
				this._delay(function() {
					delete this.cancelBlur;
				});

				// clicking on the scrollbar causes focus to shift to the body
				// but we can't detect a mouseup or a click immediately afterward
				// so we have to track the next mousedown and close the menu if
				// the user clicks somewhere outside of the autocomplete
				var menuElement = this.menu.element[ 0 ];
				if ( !$( event.target ).closest( ".ui-menu-item" ).length ) {
					this._delay(function() {
						var that = this;
						this.document.one( "mousedown", function( event ) {
							if ( event.target !== that.element[ 0 ] &&
									event.target !== menuElement &&
									!$.contains( menuElement, event.target ) ) {
								that.close();
							}
						});
					});
				}
			},
			menufocus: function( event, ui ) {
				// support: Firefox
				// Prevent accidental activation of menu items in Firefox (#7024 #9118)
				if ( this.isNewMenu ) {
					this.isNewMenu = false;
					if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) {
						this.menu.blur();

						this.document.one( "mousemove", function() {
							$( event.target ).trigger( event.originalEvent );
						});

						return;
					}
				}

				var item = ui.item.data( "ui-autocomplete-item" );
				if ( false !== this._trigger( "focus", event, { item: item } ) ) {
					// use value to match what will end up in the input, if it was a key event
					if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) {
						this._value( item.value );
					}
				} else {
					// Normally the input is populated with the item's value as the
					// menu is navigated, causing screen readers to notice a change and
					// announce the item. Since the focus event was canceled, this doesn't
					// happen, so we update the live region so that screen readers can
					// still notice the change and announce it.
					this.liveRegion.text( item.value );
				}
			},
			menuselect: function( event, ui ) {
				var item = ui.item.data( "ui-autocomplete-item" ),
					previous = this.previous;

				// only trigger when focus was lost (click on menu)
				if ( this.element[0] !== this.document[0].activeElement ) {
					this.element.focus();
					this.previous = previous;
					// #6109 - IE triggers two focus events and the second
					// is asynchronous, so we need to reset the previous
					// term synchronously and asynchronously :-(
					this._delay(function() {
						this.previous = previous;
						this.selectedItem = item;
					});
				}

				if ( false !== this._trigger( "select", event, { item: item } ) ) {
					this._value( item.value );
				}
				// reset the term after the select event
				// this allows custom select handling to work properly
				this.term = this._value();

				this.close( event );
				this.selectedItem = item;
			}
		});

		this.liveRegion = $( "<span>", {
				role: "status",
				"aria-live": "polite"
			})
			.addClass( "ui-helper-hidden-accessible" )
			.insertBefore( this.element );

		// turning off autocomplete prevents the browser from remembering the
		// value when navigating through history, so we re-enable autocomplete
		// if the page is unloaded before the widget is destroyed. #7790
		this._on( this.window, {
			beforeunload: function() {
				this.element.removeAttr( "autocomplete" );
			}
		});
	},

	_destroy: function() {
		clearTimeout( this.searching );
		this.element
			.removeClass( "ui-autocomplete-input" )
			.removeAttr( "autocomplete" );
		this.menu.element.remove();
		this.liveRegion.remove();
	},

	_setOption: function( key, value ) {
		this._super( key, value );
		if ( key === "source" ) {
			this._initSource();
		}
		if ( key === "appendTo" ) {
			this.menu.element.appendTo( this._appendTo() );
		}
		if ( key === "disabled" && value && this.xhr ) {
			this.xhr.abort();
		}
	},

	_appendTo: function() {
		var element = this.options.appendTo;

		if ( element ) {
			element = element.jquery || element.nodeType ?
				$( element ) :
				this.document.find( element ).eq( 0 );
		}

		if ( !element ) {
			element = this.element.closest( ".ui-front" );
		}

		if ( !element.length ) {
			element = this.document[0].body;
		}

		return element;
	},

	_initSource: function() {
		var array, url,
			that = this;
		if ( $.isArray(this.options.source) ) {
			array = this.options.source;
			this.source = function( request, response ) {
				response( $.ui.autocomplete.filter( array, request.term ) );
			};
		} else if ( typeof this.options.source === "string" ) {
			url = this.options.source;
			this.source = function( request, response ) {
				if ( that.xhr ) {
					that.xhr.abort();
				}
				that.xhr = $.ajax({
					url: url,
					data: request,
					dataType: "json",
					success: function( data ) {
						response( data );
					},
					error: function() {
						response( [] );
					}
				});
			};
		} else {
			this.source = this.options.source;
		}
	},

	_searchTimeout: function( event ) {
		clearTimeout( this.searching );
		this.searching = this._delay(function() {
			// only search if the value has changed
			if ( this.term !== this._value() ) {
				this.selectedItem = null;
				this.search( null, event );
			}
		}, this.options.delay );
	},

	search: function( value, event ) {
		value = value != null ? value : this._value();

		// always save the actual value, not the one passed as an argument
		this.term = this._value();

		if ( value.length < this.options.minLength ) {
			return this.close( event );
		}

		if ( this._trigger( "search", event ) === false ) {
			return;
		}

		return this._search( value );
	},

	_search: function( value ) {
		this.pending++;
		this.element.addClass( "ui-autocomplete-loading" );
		this.cancelSearch = false;

		this.source( { term: value }, this._response() );
	},

	_response: function() {
		var that = this,
			index = ++requestIndex;

		return function( content ) {
			if ( index === requestIndex ) {
				that.__response( content );
			}

			that.pending--;
			if ( !that.pending ) {
				that.element.removeClass( "ui-autocomplete-loading" );
			}
		};
	},

	__response: function( content ) {
		if ( content ) {
			content = this._normalize( content );
		}
		this._trigger( "response", null, { content: content } );
		if ( !this.options.disabled && content && content.length && !this.cancelSearch ) {
			this._suggest( content );
			this._trigger( "open" );
		} else {
			// use ._close() instead of .close() so we don't cancel future searches
			this._close();
		}
	},

	close: function( event ) {
		this.cancelSearch = true;
		this._close( event );
	},

	_close: function( event ) {
		if ( this.menu.element.is( ":visible" ) ) {
			this.menu.element.hide();
			this.menu.blur();
			this.isNewMenu = true;
			this._trigger( "close", event );
		}
	},

	_change: function( event ) {
		if ( this.previous !== this._value() ) {
			this._trigger( "change", event, { item: this.selectedItem } );
		}
	},

	_normalize: function( items ) {
		// assume all items have the right format when the first item is complete
		if ( items.length && items[0].label && items[0].value ) {
			return items;
		}
		return $.map( items, function( item ) {
			if ( typeof item === "string" ) {
				return {
					label: item,
					value: item
				};
			}
			return $.extend({
				label: item.label || item.value,
				value: item.value || item.label
			}, item );
		});
	},

	_suggest: function( items ) {
		var ul = this.menu.element.empty();
		this._renderMenu( ul, items );
		this.isNewMenu = true;
		this.menu.refresh();

		// size and position menu
		ul.show();
		this._resizeMenu();
		ul.position( $.extend({
			of: this.element
		}, this.options.position ));

		if ( this.options.autoFocus ) {
			this.menu.next();
		}
	},

	_resizeMenu: function() {
		var ul = this.menu.element;
		ul.outerWidth( Math.max(
			// Firefox wraps long text (possibly a rounding bug)
			// so we add 1px to avoid the wrapping (#7513)
			ul.width( "" ).outerWidth() + 1,
			this.element.outerWidth()
		) );
	},

	_renderMenu: function( ul, items ) {
		var that = this;
		$.each( items, function( index, item ) {
			that._renderItemData( ul, item );
		});
	},

	_renderItemData: function( ul, item ) {
		return this._renderItem( ul, item ).data( "ui-autocomplete-item", item );
	},

	_renderItem: function( ul, item ) {
		return $( "<li>" )
			.append( $( "<a>" ).text( item.label ) )
			.appendTo( ul );
	},

	_move: function( direction, event ) {
		if ( !this.menu.element.is( ":visible" ) ) {
			this.search( null, event );
			return;
		}
		if ( this.menu.isFirstItem() && /^previous/.test( direction ) ||
				this.menu.isLastItem() && /^next/.test( direction ) ) {
			this._value( this.term );
			this.menu.blur();
			return;
		}
		this.menu[ direction ]( event );
	},

	widget: function() {
		return this.menu.element;
	},

	_value: function() {
		return this.valueMethod.apply( this.element, arguments );
	},

	_keyEvent: function( keyEvent, event ) {
		if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
			this._move( keyEvent, event );

			// prevents moving cursor to beginning/end of the text field in some browsers
			event.preventDefault();
		}
	}
});

$.extend( $.ui.autocomplete, {
	escapeRegex: function( value ) {
		return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
	},
	filter: function(array, term) {
		var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );
		return $.grep( array, function(value) {
			return matcher.test( value.label || value.value || value );
		});
	}
});


// live region extension, adding a `messages` option
// NOTE: This is an experimental API. We are still investigating
// a full solution for string manipulation and internationalization.
$.widget( "ui.autocomplete", $.ui.autocomplete, {
	options: {
		messages: {
			noResults: "No search results.",
			results: function( amount ) {
				return amount + ( amount > 1 ? " results are" : " result is" ) +
					" available, use up and down arrow keys to navigate.";
			}
		}
	},

	__response: function( content ) {
		var message;
		this._superApply( arguments );
		if ( this.options.disabled || this.cancelSearch ) {
			return;
		}
		if ( content && content.length ) {
			message = this.options.messages.results( content.length );
		} else {
			message = this.options.messages.noResults;
		}
		this.liveRegion.text( message );
	}
});

}( jQuery ));

(function( $, undefined ) {

var lastActive, startXPos, startYPos, clickDragged,
	baseClasses = "ui-button ui-widget ui-state-default ui-corner-all",
	stateClasses = "ui-state-hover ui-state-active ",
	typeClasses = "ui-button-icons-only ui-button-icon-only ui-button-text-icons ui-button-text-icon-primary ui-button-text-icon-secondary ui-button-text-only",
	formResetHandler = function() {
		var form = $( this );
		setTimeout(function() {
			form.find( ":ui-button" ).button( "refresh" );
		}, 1 );
	},
	radioGroup = function( radio ) {
		var name = radio.name,
			form = radio.form,
			radios = $( [] );
		if ( name ) {
			name = name.replace( /'/g, "\\'" );
			if ( form ) {
				radios = $( form ).find( "[name='" + name + "']" );
			} else {
				radios = $( "[name='" + name + "']", radio.ownerDocument )
					.filter(function() {
						return !this.form;
					});
			}
		}
		return radios;
	};

$.widget( "ui.button", {
	version: "1.10.3",
	defaultElement: "<button>",
	options: {
		disabled: null,
		text: true,
		label: null,
		icons: {
			primary: null,
			secondary: null
		}
	},
	_create: function() {
		this.element.closest( "form" )
			.unbind( "reset" + this.eventNamespace )
			.bind( "reset" + this.eventNamespace, formResetHandler );

		if ( typeof this.options.disabled !== "boolean" ) {
			this.options.disabled = !!this.element.prop( "disabled" );
		} else {
			this.element.prop( "disabled", this.options.disabled );
		}

		this._determineButtonType();
		this.hasTitle = !!this.buttonElement.attr( "title" );

		var that = this,
			options = this.options,
			toggleButton = this.type === "checkbox" || this.type === "radio",
			activeClass = !toggleButton ? "ui-state-active" : "",
			focusClass = "ui-state-focus";

		if ( options.label === null ) {
			options.label = (this.type === "input" ? this.buttonElement.val() : this.buttonElement.html());
		}

		this._hoverable( this.buttonElement );

		this.buttonElement
			.addClass( baseClasses )
			.attr( "role", "button" )
			.bind( "mouseenter" + this.eventNamespace, function() {
				if ( options.disabled ) {
					return;
				}
				if ( this === lastActive ) {
					$( this ).addClass( "ui-state-active" );
				}
			})
			.bind( "mouseleave" + this.eventNamespace, function() {
				if ( options.disabled ) {
					return;
				}
				$( this ).removeClass( activeClass );
			})
			.bind( "click" + this.eventNamespace, function( event ) {
				if ( options.disabled ) {
					event.preventDefault();
					event.stopImmediatePropagation();
				}
			});

		this.element
			.bind( "focus" + this.eventNamespace, function() {
				// no need to check disabled, focus won't be triggered anyway
				that.buttonElement.addClass( focusClass );
			})
			.bind( "blur" + this.eventNamespace, function() {
				that.buttonElement.removeClass( focusClass );
			});

		if ( toggleButton ) {
			this.element.bind( "change" + this.eventNamespace, function() {
				if ( clickDragged ) {
					return;
				}
				that.refresh();
			});
			// if mouse moves between mousedown and mouseup (drag) set clickDragged flag
			// prevents issue where button state changes but checkbox/radio checked state
			// does not in Firefox (see ticket #6970)
			this.buttonElement
				.bind( "mousedown" + this.eventNamespace, function( event ) {
					if ( options.disabled ) {
						return;
					}
					clickDragged = false;
					startXPos = event.pageX;
					startYPos = event.pageY;
				})
				.bind( "mouseup" + this.eventNamespace, function( event ) {
					if ( options.disabled ) {
						return;
					}
					if ( startXPos !== event.pageX || startYPos !== event.pageY ) {
						clickDragged = true;
					}
			});
		}

		if ( this.type === "checkbox" ) {
			this.buttonElement.bind( "click" + this.eventNamespace, function() {
				if ( options.disabled || clickDragged ) {
					return false;
				}
			});
		} else if ( this.type === "radio" ) {
			this.buttonElement.bind( "click" + this.eventNamespace, function() {
				if ( options.disabled || clickDragged ) {
					return false;
				}
				$( this ).addClass( "ui-state-active" );
				that.buttonElement.attr( "aria-pressed", "true" );

				var radio = that.element[ 0 ];
				radioGroup( radio )
					.not( radio )
					.map(function() {
						return $( this ).button( "widget" )[ 0 ];
					})
					.removeClass( "ui-state-active" )
					.attr( "aria-pressed", "false" );
			});
		} else {
			this.buttonElement
				.bind( "mousedown" + this.eventNamespace, function() {
					if ( options.disabled ) {
						return false;
					}
					$( this ).addClass( "ui-state-active" );
					lastActive = this;
					that.document.one( "mouseup", function() {
						lastActive = null;
					});
				})
				.bind( "mouseup" + this.eventNamespace, function() {
					if ( options.disabled ) {
						return false;
					}
					$( this ).removeClass( "ui-state-active" );
				})
				.bind( "keydown" + this.eventNamespace, function(event) {
					if ( options.disabled ) {
						return false;
					}
					if ( event.keyCode === $.ui.keyCode.SPACE || event.keyCode === $.ui.keyCode.ENTER ) {
						$( this ).addClass( "ui-state-active" );
					}
				})
				// see #8559, we bind to blur here in case the button element loses
				// focus between keydown and keyup, it would be left in an "active" state
				.bind( "keyup" + this.eventNamespace + " blur" + this.eventNamespace, function() {
					$( this ).removeClass( "ui-state-active" );
				});

			if ( this.buttonElement.is("a") ) {
				this.buttonElement.keyup(function(event) {
					if ( event.keyCode === $.ui.keyCode.SPACE ) {
						// TODO pass through original event correctly (just as 2nd argument doesn't work)
						$( this ).click();
					}
				});
			}
		}

		// TODO: pull out $.Widget's handling for the disabled option into
		// $.Widget.prototype._setOptionDisabled so it's easy to proxy and can
		// be overridden by individual plugins
		this._setOption( "disabled", options.disabled );
		this._resetButton();
	},

	_determineButtonType: function() {
		var ancestor, labelSelector, checked;

		if ( this.element.is("[type=checkbox]") ) {
			this.type = "checkbox";
		} else if ( this.element.is("[type=radio]") ) {
			this.type = "radio";
		} else if ( this.element.is("input") ) {
			this.type = "input";
		} else {
			this.type = "button";
		}

		if ( this.type === "checkbox" || this.type === "radio" ) {
			// we don't search against the document in case the element
			// is disconnected from the DOM
			ancestor = this.element.parents().last();
			labelSelector = "label[for='" + this.element.attr("id") + "']";
			this.buttonElement = ancestor.find( labelSelector );
			if ( !this.buttonElement.length ) {
				ancestor = ancestor.length ? ancestor.siblings() : this.element.siblings();
				this.buttonElement = ancestor.filter( labelSelector );
				if ( !this.buttonElement.length ) {
					this.buttonElement = ancestor.find( labelSelector );
				}
			}
			this.element.addClass( "ui-helper-hidden-accessible" );

			checked = this.element.is( ":checked" );
			if ( checked ) {
				this.buttonElement.addClass( "ui-state-active" );
			}
			this.buttonElement.prop( "aria-pressed", checked );
		} else {
			this.buttonElement = this.element;
		}
	},

	widget: function() {
		return this.buttonElement;
	},

	_destroy: function() {
		this.element
			.removeClass( "ui-helper-hidden-accessible" );
		this.buttonElement
			.removeClass( baseClasses + " " + stateClasses + " " + typeClasses )
			.removeAttr( "role" )
			.removeAttr( "aria-pressed" )
			.html( this.buttonElement.find(".ui-button-text").html() );

		if ( !this.hasTitle ) {
			this.buttonElement.removeAttr( "title" );
		}
	},

	_setOption: function( key, value ) {
		this._super( key, value );
		if ( key === "disabled" ) {
			if ( value ) {
				this.element.prop( "disabled", true );
			} else {
				this.element.prop( "disabled", false );
			}
			return;
		}
		this._resetButton();
	},

	refresh: function() {
		//See #8237 & #8828
		var isDisabled = this.element.is( "input, button" ) ? this.element.is( ":disabled" ) : this.element.hasClass( "ui-button-disabled" );

		if ( isDisabled !== this.options.disabled ) {
			this._setOption( "disabled", isDisabled );
		}
		if ( this.type === "radio" ) {
			radioGroup( this.element[0] ).each(function() {
				if ( $( this ).is( ":checked" ) ) {
					$( this ).button( "widget" )
						.addClass( "ui-state-active" )
						.attr( "aria-pressed", "true" );
				} else {
					$( this ).button( "widget" )
						.removeClass( "ui-state-active" )
						.attr( "aria-pressed", "false" );
				}
			});
		} else if ( this.type === "checkbox" ) {
			if ( this.element.is( ":checked" ) ) {
				this.buttonElement
					.addClass( "ui-state-active" )
					.attr( "aria-pressed", "true" );
			} else {
				this.buttonElement
					.removeClass( "ui-state-active" )
					.attr( "aria-pressed", "false" );
			}
		}
	},

	_resetButton: function() {
		if ( this.type === "input" ) {
			if ( this.options.label ) {
				this.element.val( this.options.label );
			}
			return;
		}
		var buttonElement = this.buttonElement.removeClass( typeClasses ),
			buttonText = $( "<span></span>", this.document[0] )
				.addClass( "ui-button-text" )
				.html( this.options.label )
				.appendTo( buttonElement.empty() )
				.text(),
			icons = this.options.icons,
			multipleIcons = icons.primary && icons.secondary,
			buttonClasses = [];

		if ( icons.primary || icons.secondary ) {
			if ( this.options.text ) {
				buttonClasses.push( "ui-button-text-icon" + ( multipleIcons ? "s" : ( icons.primary ? "-primary" : "-secondary" ) ) );
			}

			if ( icons.primary ) {
				buttonElement.prepend( "<span class='ui-button-icon-primary ui-icon " + icons.primary + "'></span>" );
			}

			if ( icons.secondary ) {
				buttonElement.append( "<span class='ui-button-icon-secondary ui-icon " + icons.secondary + "'></span>" );
			}

			if ( !this.options.text ) {
				buttonClasses.push( multipleIcons ? "ui-button-icons-only" : "ui-button-icon-only" );

				if ( !this.hasTitle ) {
					buttonElement.attr( "title", $.trim( buttonText ) );
				}
			}
		} else {
			buttonClasses.push( "ui-button-text-only" );
		}
		buttonElement.addClass( buttonClasses.join( " " ) );
	}
});

$.widget( "ui.buttonset", {
	version: "1.10.3",
	options: {
		items: "button, input[type=button], input[type=submit], input[type=reset], input[type=checkbox], input[type=radio], a, :data(ui-button)"
	},

	_create: function() {
		this.element.addClass( "ui-buttonset" );
	},

	_init: function() {
		this.refresh();
	},

	_setOption: function( key, value ) {
		if ( key === "disabled" ) {
			this.buttons.button( "option", key, value );
		}

		this._super( key, value );
	},

	refresh: function() {
		var rtl = this.element.css( "direction" ) === "rtl";

		this.buttons = this.element.find( this.options.items )
			.filter( ":ui-button" )
				.button( "refresh" )
			.end()
			.not( ":ui-button" )
				.button()
			.end()
			.map(function() {
				return $( this ).button( "widget" )[ 0 ];
			})
				.removeClass( "ui-corner-all ui-corner-left ui-corner-right" )
				.filter( ":first" )
					.addClass( rtl ? "ui-corner-right" : "ui-corner-left" )
				.end()
				.filter( ":last" )
					.addClass( rtl ? "ui-corner-left" : "ui-corner-right" )
				.end()
			.end();
	},

	_destroy: function() {
		this.element.removeClass( "ui-buttonset" );
		this.buttons
			.map(function() {
				return $( this ).button( "widget" )[ 0 ];
			})
				.removeClass( "ui-corner-left ui-corner-right" )
			.end()
			.button( "destroy" );
	}
});

}( jQuery ) );

(function( $, undefined ) {

$.extend($.ui, { datepicker: { version: "1.10.3" } });

var PROP_NAME = "datepicker",
	instActive;

/* Date picker manager.
   Use the singleton instance of this class, $.datepicker, to interact with the date picker.
   Settings for (groups of) date pickers are maintained in an instance object,
   allowing multiple different settings on the same page. */

function Datepicker() {
	this._curInst = null; // The current instance in use
	this._keyEvent = false; // If the last event was a key event
	this._disabledInputs = []; // List of date picker inputs that have been disabled
	this._datepickerShowing = false; // True if the popup picker is showing , false if not
	this._inDialog = false; // True if showing within a "dialog", false if not
	this._mainDivId = "ui-datepicker-div"; // The ID of the main datepicker division
	this._inlineClass = "ui-datepicker-inline"; // The name of the inline marker class
	this._appendClass = "ui-datepicker-append"; // The name of the append marker class
	this._triggerClass = "ui-datepicker-trigger"; // The name of the trigger marker class
	this._dialogClass = "ui-datepicker-dialog"; // The name of the dialog marker class
	this._disableClass = "ui-datepicker-disabled"; // The name of the disabled covering marker class
	this._unselectableClass = "ui-datepicker-unselectable"; // The name of the unselectable cell marker class
	this._currentClass = "ui-datepicker-current-day"; // The name of the current day marker class
	this._dayOverClass = "ui-datepicker-days-cell-over"; // The name of the day hover marker class
	this.regional = []; // Available regional settings, indexed by language code
	this.regional[""] = { // Default regional settings
		closeText: "Done", // Display text for close link
		prevText: "Prev", // Display text for previous month link
		nextText: "Next", // Display text for next month link
		currentText: "Today", // Display text for current month link
		monthNames: ["January","February","March","April","May","June",
			"July","August","September","October","November","December"], // Names of months for drop-down and formatting
		monthNamesShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"], // For formatting
		dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], // For formatting
		dayNamesShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], // For formatting
		dayNamesMin: ["Su","Mo","Tu","We","Th","Fr","Sa"], // Column headings for days starting at Sunday
		weekHeader: "Wk", // Column header for week of the year
		dateFormat: "mm/dd/yy", // See format options on parseDate
		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
		isRTL: false, // True if right-to-left language, false if left-to-right
		showMonthAfterYear: false, // True if the year select precedes month, false for month then year
		yearSuffix: "" // Additional text to append to the year in the month headers
	};
	this._defaults = { // Global defaults for all the date picker instances
		showOn: "focus", // "focus" for popup on focus,
			// "button" for trigger button, or "both" for either
		showAnim: "fadeIn", // Name of jQuery animation for popup
		showOptions: {}, // Options for enhanced animations
		defaultDate: null, // Used when field is blank: actual date,
			// +/-number for offset from today, null for today
		appendText: "", // Display text following the input box, e.g. showing the format
		buttonText: "...", // Text for trigger button
		buttonImage: "", // URL for trigger button image
		buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
		hideIfNoPrevNext: false, // True to hide next/previous month links
			// if not applicable, false to just disable them
		navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
		gotoCurrent: false, // True if today link goes back to current selection instead
		changeMonth: false, // True if month can be selected directly, false if only prev/next
		changeYear: false, // True if year can be selected directly, false if only prev/next
		yearRange: "c-10:c+10", // Range of years to display in drop-down,
			// either relative to today's year (-nn:+nn), relative to currently displayed year
			// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
		showOtherMonths: false, // True to show dates in other months, false to leave blank
		selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
		showWeek: false, // True to show week of the year, false to not show it
		calculateWeek: this.iso8601Week, // How to calculate the week of the year,
			// takes a Date and returns the number of the week for it
		shortYearCutoff: "+10", // Short year values < this are in the current century,
			// > this are in the previous century,
			// string value starting with "+" for current year + value
		minDate: null, // The earliest selectable date, or null for no limit
		maxDate: null, // The latest selectable date, or null for no limit
		duration: "fast", // Duration of display/closure
		beforeShowDay: null, // Function that takes a date and returns an array with
			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or "",
			// [2] = cell title (optional), e.g. $.datepicker.noWeekends
		beforeShow: null, // Function that takes an input field and
			// returns a set of custom settings for the date picker
		onSelect: null, // Define a callback function when a date is selected
		onChangeMonthYear: null, // Define a callback function when the month or year is changed
		onClose: null, // Define a callback function when the datepicker is closed
		numberOfMonths: 1, // Number of months to show at a time
		showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
		stepMonths: 1, // Number of months to step back/forward
		stepBigMonths: 12, // Number of months to step back/forward for the big links
		altField: "", // Selector for an alternate field to store selected dates into
		altFormat: "", // The date format to use for the alternate field
		constrainInput: true, // The input is constrained by the current date format
		showButtonPanel: false, // True to show button panel, false to not show it
		autoSize: false, // True to size the input for the date format, false to leave as is
		disabled: false // The initial disabled state
	};
	$.extend(this._defaults, this.regional[""]);
	this.dpDiv = bindHover($("<div id='" + this._mainDivId + "' class='ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>"));
}

$.extend(Datepicker.prototype, {
	/* Class name added to elements to indicate already configured with a date picker. */
	markerClassName: "hasDatepicker",

	//Keep track of the maximum number of rows displayed (see #7043)
	maxRows: 4,

	// TODO rename to "widget" when switching to widget factory
	_widgetDatepicker: function() {
		return this.dpDiv;
	},

	/* Override the default settings for all instances of the date picker.
	 * @param  settings  object - the new settings to use as defaults (anonymous object)
	 * @return the manager object
	 */
	setDefaults: function(settings) {
		extendRemove(this._defaults, settings || {});
		return this;
	},

	/* Attach the date picker to a jQuery selection.
	 * @param  target	element - the target input field or division or span
	 * @param  settings  object - the new settings to use for this date picker instance (anonymous)
	 */
	_attachDatepicker: function(target, settings) {
		var nodeName, inline, inst;
		nodeName = target.nodeName.toLowerCase();
		inline = (nodeName === "div" || nodeName === "span");
		if (!target.id) {
			this.uuid += 1;
			target.id = "dp" + this.uuid;
		}
		inst = this._newInst($(target), inline);
		inst.settings = $.extend({}, settings || {});
		if (nodeName === "input") {
			this._connectDatepicker(target, inst);
		} else if (inline) {
			this._inlineDatepicker(target, inst);
		}
	},

	/* Create a new instance object. */
	_newInst: function(target, inline) {
		var id = target[0].id.replace(/([^A-Za-z0-9_\-])/g, "\\\\$1"); // escape jQuery meta chars
		return {id: id, input: target, // associated target
			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
			drawMonth: 0, drawYear: 0, // month being drawn
			inline: inline, // is datepicker inline or not
			dpDiv: (!inline ? this.dpDiv : // presentation div
			bindHover($("<div class='" + this._inlineClass + " ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all'></div>")))};
	},

	/* Attach the date picker to an input field. */
	_connectDatepicker: function(target, inst) {
		var input = $(target);
		inst.append = $([]);
		inst.trigger = $([]);
		if (input.hasClass(this.markerClassName)) {
			return;
		}
		this._attachments(input, inst);
		input.addClass(this.markerClassName).keydown(this._doKeyDown).
			keypress(this._doKeyPress).keyup(this._doKeyUp);
		this._autoSize(inst);
		$.data(target, PROP_NAME, inst);
		//If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
		if( inst.settings.disabled ) {
			this._disableDatepicker( target );
		}
	},

	/* Make attachments based on settings. */
	_attachments: function(input, inst) {
		var showOn, buttonText, buttonImage,
			appendText = this._get(inst, "appendText"),
			isRTL = this._get(inst, "isRTL");

		if (inst.append) {
			inst.append.remove();
		}
		if (appendText) {
			inst.append = $("<span class='" + this._appendClass + "'>" + appendText + "</span>");
			input[isRTL ? "before" : "after"](inst.append);
		}

		input.unbind("focus", this._showDatepicker);

		if (inst.trigger) {
			inst.trigger.remove();
		}

		showOn = this._get(inst, "showOn");
		if (showOn === "focus" || showOn === "both") { // pop-up date picker when in the marked field
			input.focus(this._showDatepicker);
		}
		if (showOn === "button" || showOn === "both") { // pop-up date picker when button clicked
			buttonText = this._get(inst, "buttonText");
			buttonImage = this._get(inst, "buttonImage");
			inst.trigger = $(this._get(inst, "buttonImageOnly") ?
				$("<img/>").addClass(this._triggerClass).
					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
				$("<button type='button'></button>").addClass(this._triggerClass).
					html(!buttonImage ? buttonText : $("<img/>").attr(
					{ src:buttonImage, alt:buttonText, title:buttonText })));
			input[isRTL ? "before" : "after"](inst.trigger);
			inst.trigger.click(function() {
				if ($.datepicker._datepickerShowing && $.datepicker._lastInput === input[0]) {
					$.datepicker._hideDatepicker();
				} else if ($.datepicker._datepickerShowing && $.datepicker._lastInput !== input[0]) {
					$.datepicker._hideDatepicker();
					$.datepicker._showDatepicker(input[0]);
				} else {
					$.datepicker._showDatepicker(input[0]);
				}
				return false;
			});
		}
	},

	/* Apply the maximum length for the date format. */
	_autoSize: function(inst) {
		if (this._get(inst, "autoSize") && !inst.inline) {
			var findMax, max, maxI, i,
				date = new Date(2009, 12 - 1, 20), // Ensure double digits
				dateFormat = this._get(inst, "dateFormat");

			if (dateFormat.match(/[DM]/)) {
				findMax = function(names) {
					max = 0;
					maxI = 0;
					for (i = 0; i < names.length; i++) {
						if (names[i].length > max) {
							max = names[i].length;
							maxI = i;
						}
					}
					return maxI;
				};
				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
					"monthNames" : "monthNamesShort"))));
				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
					"dayNames" : "dayNamesShort"))) + 20 - date.getDay());
			}
			inst.input.attr("size", this._formatDate(inst, date).length);
		}
	},

	/* Attach an inline date picker to a div. */
	_inlineDatepicker: function(target, inst) {
		var divSpan = $(target);
		if (divSpan.hasClass(this.markerClassName)) {
			return;
		}
		divSpan.addClass(this.markerClassName).append(inst.dpDiv);
		$.data(target, PROP_NAME, inst);
		this._setDate(inst, this._getDefaultDate(inst), true);
		this._updateDatepicker(inst);
		this._updateAlternate(inst);
		//If disabled option is true, disable the datepicker before showing it (see ticket #5665)
		if( inst.settings.disabled ) {
			this._disableDatepicker( target );
		}
		// Set display:block in place of inst.dpDiv.show() which won't work on disconnected elements
		// http://bugs.jqueryui.com/ticket/7552 - A Datepicker created on a detached div has zero height
		inst.dpDiv.css( "display", "block" );
	},

	/* Pop-up the date picker in a "dialog" box.
	 * @param  input element - ignored
	 * @param  date	string or Date - the initial date to display
	 * @param  onSelect  function - the function to call when a date is selected
	 * @param  settings  object - update the dialog date picker instance's settings (anonymous object)
	 * @param  pos int[2] - coordinates for the dialog's position within the screen or
	 *					event - with x/y coordinates or
	 *					leave empty for default (screen centre)
	 * @return the manager object
	 */
	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
		var id, browserWidth, browserHeight, scrollX, scrollY,
			inst = this._dialogInst; // internal instance

		if (!inst) {
			this.uuid += 1;
			id = "dp" + this.uuid;
			this._dialogInput = $("<input type='text' id='" + id +
				"' style='position: absolute; top: -100px; width: 0px;'/>");
			this._dialogInput.keydown(this._doKeyDown);
			$("body").append(this._dialogInput);
			inst = this._dialogInst = this._newInst(this._dialogInput, false);
			inst.settings = {};
			$.data(this._dialogInput[0], PROP_NAME, inst);
		}
		extendRemove(inst.settings, settings || {});
		date = (date && date.constructor === Date ? this._formatDate(inst, date) : date);
		this._dialogInput.val(date);

		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
		if (!this._pos) {
			browserWidth = document.documentElement.clientWidth;
			browserHeight = document.documentElement.clientHeight;
			scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
			scrollY = document.documentElement.scrollTop || document.body.scrollTop;
			this._pos = // should use actual width/height below
				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
		}

		// move input on screen for focus, but hidden behind dialog
		this._dialogInput.css("left", (this._pos[0] + 20) + "px").css("top", this._pos[1] + "px");
		inst.settings.onSelect = onSelect;
		this._inDialog = true;
		this.dpDiv.addClass(this._dialogClass);
		this._showDatepicker(this._dialogInput[0]);
		if ($.blockUI) {
			$.blockUI(this.dpDiv);
		}
		$.data(this._dialogInput[0], PROP_NAME, inst);
		return this;
	},

	/* Detach a datepicker from its control.
	 * @param  target	element - the target input field or division or span
	 */
	_destroyDatepicker: function(target) {
		var nodeName,
			$target = $(target),
			inst = $.data(target, PROP_NAME);

		if (!$target.hasClass(this.markerClassName)) {
			return;
		}

		nodeName = target.nodeName.toLowerCase();
		$.removeData(target, PROP_NAME);
		if (nodeName === "input") {
			inst.append.remove();
			inst.trigger.remove();
			$target.removeClass(this.markerClassName).
				unbind("focus", this._showDatepicker).
				unbind("keydown", this._doKeyDown).
				unbind("keypress", this._doKeyPress).
				unbind("keyup", this._doKeyUp);
		} else if (nodeName === "div" || nodeName === "span") {
			$target.removeClass(this.markerClassName).empty();
		}
	},

	/* Enable the date picker to a jQuery selection.
	 * @param  target	element - the target input field or division or span
	 */
	_enableDatepicker: function(target) {
		var nodeName, inline,
			$target = $(target),
			inst = $.data(target, PROP_NAME);

		if (!$target.hasClass(this.markerClassName)) {
			return;
		}

		nodeName = target.nodeName.toLowerCase();
		if (nodeName === "input") {
			target.disabled = false;
			inst.trigger.filter("button").
				each(function() { this.disabled = false; }).end().
				filter("img").css({opacity: "1.0", cursor: ""});
		} else if (nodeName === "div" || nodeName === "span") {
			inline = $target.children("." + this._inlineClass);
			inline.children().removeClass("ui-state-disabled");
			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
				prop("disabled", false);
		}
		this._disabledInputs = $.map(this._disabledInputs,
			function(value) { return (value === target ? null : value); }); // delete entry
	},

	/* Disable the date picker to a jQuery selection.
	 * @param  target	element - the target input field or division or span
	 */
	_disableDatepicker: function(target) {
		var nodeName, inline,
			$target = $(target),
			inst = $.data(target, PROP_NAME);

		if (!$target.hasClass(this.markerClassName)) {
			return;
		}

		nodeName = target.nodeName.toLowerCase();
		if (nodeName === "input") {
			target.disabled = true;
			inst.trigger.filter("button").
				each(function() { this.disabled = true; }).end().
				filter("img").css({opacity: "0.5", cursor: "default"});
		} else if (nodeName === "div" || nodeName === "span") {
			inline = $target.children("." + this._inlineClass);
			inline.children().addClass("ui-state-disabled");
			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
				prop("disabled", true);
		}
		this._disabledInputs = $.map(this._disabledInputs,
			function(value) { return (value === target ? null : value); }); // delete entry
		this._disabledInputs[this._disabledInputs.length] = target;
	},

	/* Is the first field in a jQuery collection disabled as a datepicker?
	 * @param  target	element - the target input field or division or span
	 * @return boolean - true if disabled, false if enabled
	 */
	_isDisabledDatepicker: function(target) {
		if (!target) {
			return false;
		}
		for (var i = 0; i < this._disabledInputs.length; i++) {
			if (this._disabledInputs[i] === target) {
				return true;
			}
		}
		return false;
	},

	/* Retrieve the instance data for the target control.
	 * @param  target  element - the target input field or division or span
	 * @return  object - the associated instance data
	 * @throws  error if a jQuery problem getting data
	 */
	_getInst: function(target) {
		try {
			return $.data(target, PROP_NAME);
		}
		catch (err) {
			throw "Missing instance data for this datepicker";
		}
	},

	/* Update or retrieve the settings for a date picker attached to an input field or division.
	 * @param  target  element - the target input field or division or span
	 * @param  name	object - the new settings to update or
	 *				string - the name of the setting to change or retrieve,
	 *				when retrieving also "all" for all instance settings or
	 *				"defaults" for all global defaults
	 * @param  value   any - the new value for the setting
	 *				(omit if above is an object or to retrieve a value)
	 */
	_optionDatepicker: function(target, name, value) {
		var settings, date, minDate, maxDate,
			inst = this._getInst(target);

		if (arguments.length === 2 && typeof name === "string") {
			return (name === "defaults" ? $.extend({}, $.datepicker._defaults) :
				(inst ? (name === "all" ? $.extend({}, inst.settings) :
				this._get(inst, name)) : null));
		}

		settings = name || {};
		if (typeof name === "string") {
			settings = {};
			settings[name] = value;
		}

		if (inst) {
			if (this._curInst === inst) {
				this._hideDatepicker();
			}

			date = this._getDateDatepicker(target, true);
			minDate = this._getMinMaxDate(inst, "min");
			maxDate = this._getMinMaxDate(inst, "max");
			extendRemove(inst.settings, settings);
			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
			if (minDate !== null && settings.dateFormat !== undefined && settings.minDate === undefined) {
				inst.settings.minDate = this._formatDate(inst, minDate);
			}
			if (maxDate !== null && settings.dateFormat !== undefined && settings.maxDate === undefined) {
				inst.settings.maxDate = this._formatDate(inst, maxDate);
			}
			if ( "disabled" in settings ) {
				if ( settings.disabled ) {
					this._disableDatepicker(target);
				} else {
					this._enableDatepicker(target);
				}
			}
			this._attachments($(target), inst);
			this._autoSize(inst);
			this._setDate(inst, date);
			this._updateAlternate(inst);
			this._updateDatepicker(inst);
		}
	},

	// change method deprecated
	_changeDatepicker: function(target, name, value) {
		this._optionDatepicker(target, name, value);
	},

	/* Redraw the date picker attached to an input field or division.
	 * @param  target  element - the target input field or division or span
	 */
	_refreshDatepicker: function(target) {
		var inst = this._getInst(target);
		if (inst) {
			this._updateDatepicker(inst);
		}
	},

	/* Set the dates for a jQuery selection.
	 * @param  target element - the target input field or division or span
	 * @param  date	Date - the new date
	 */
	_setDateDatepicker: function(target, date) {
		var inst = this._getInst(target);
		if (inst) {
			this._setDate(inst, date);
			this._updateDatepicker(inst);
			this._updateAlternate(inst);
		}
	},

	/* Get the date(s) for the first entry in a jQuery selection.
	 * @param  target element - the target input field or division or span
	 * @param  noDefault boolean - true if no default date is to be used
	 * @return Date - the current date
	 */
	_getDateDatepicker: function(target, noDefault) {
		var inst = this._getInst(target);
		if (inst && !inst.inline) {
			this._setDateFromField(inst, noDefault);
		}
		return (inst ? this._getDate(inst) : null);
	},

	/* Handle keystrokes. */
	_doKeyDown: function(event) {
		var onSelect, dateStr, sel,
			inst = $.datepicker._getInst(event.target),
			handled = true,
			isRTL = inst.dpDiv.is(".ui-datepicker-rtl");

		inst._keyEvent = true;
		if ($.datepicker._datepickerShowing) {
			switch (event.keyCode) {
				case 9: $.datepicker._hideDatepicker();
						handled = false;
						break; // hide on tab out
				case 13: sel = $("td." + $.datepicker._dayOverClass + ":not(." +
									$.datepicker._currentClass + ")", inst.dpDiv);
						if (sel[0]) {
							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
						}

						onSelect = $.datepicker._get(inst, "onSelect");
						if (onSelect) {
							dateStr = $.datepicker._formatDate(inst);

							// trigger custom callback
							onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
						} else {
							$.datepicker._hideDatepicker();
						}

						return false; // don't submit the form
				case 27: $.datepicker._hideDatepicker();
						break; // hide on escape
				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
							-$.datepicker._get(inst, "stepBigMonths") :
							-$.datepicker._get(inst, "stepMonths")), "M");
						break; // previous month/year on page up/+ ctrl
				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
							+$.datepicker._get(inst, "stepBigMonths") :
							+$.datepicker._get(inst, "stepMonths")), "M");
						break; // next month/year on page down/+ ctrl
				case 35: if (event.ctrlKey || event.metaKey) {
							$.datepicker._clearDate(event.target);
						}
						handled = event.ctrlKey || event.metaKey;
						break; // clear on ctrl or command +end
				case 36: if (event.ctrlKey || event.metaKey) {
							$.datepicker._gotoToday(event.target);
						}
						handled = event.ctrlKey || event.metaKey;
						break; // current on ctrl or command +home
				case 37: if (event.ctrlKey || event.metaKey) {
							$.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), "D");
						}
						handled = event.ctrlKey || event.metaKey;
						// -1 day on ctrl or command +left
						if (event.originalEvent.altKey) {
							$.datepicker._adjustDate(event.target, (event.ctrlKey ?
								-$.datepicker._get(inst, "stepBigMonths") :
								-$.datepicker._get(inst, "stepMonths")), "M");
						}
						// next month/year on alt +left on Mac
						break;
				case 38: if (event.ctrlKey || event.metaKey) {
							$.datepicker._adjustDate(event.target, -7, "D");
						}
						handled = event.ctrlKey || event.metaKey;
						break; // -1 week on ctrl or command +up
				case 39: if (event.ctrlKey || event.metaKey) {
							$.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), "D");
						}
						handled = event.ctrlKey || event.metaKey;
						// +1 day on ctrl or command +right
						if (event.originalEvent.altKey) {
							$.datepicker._adjustDate(event.target, (event.ctrlKey ?
								+$.datepicker._get(inst, "stepBigMonths") :
								+$.datepicker._get(inst, "stepMonths")), "M");
						}
						// next month/year on alt +right
						break;
				case 40: if (event.ctrlKey || event.metaKey) {
							$.datepicker._adjustDate(event.target, +7, "D");
						}
						handled = event.ctrlKey || event.metaKey;
						break; // +1 week on ctrl or command +down
				default: handled = false;
			}
		} else if (event.keyCode === 36 && event.ctrlKey) { // display the date picker on ctrl+home
			$.datepicker._showDatepicker(this);
		} else {
			handled = false;
		}

		if (handled) {
			event.preventDefault();
			event.stopPropagation();
		}
	},

	/* Filter entered characters - based on date format. */
	_doKeyPress: function(event) {
		var chars, chr,
			inst = $.datepicker._getInst(event.target);

		if ($.datepicker._get(inst, "constrainInput")) {
			chars = $.datepicker._possibleChars($.datepicker._get(inst, "dateFormat"));
			chr = String.fromCharCode(event.charCode == null ? event.keyCode : event.charCode);
			return event.ctrlKey || event.metaKey || (chr < " " || !chars || chars.indexOf(chr) > -1);
		}
	},

	/* Synchronise manual entry and field/alternate field. */
	_doKeyUp: function(event) {
		var date,
			inst = $.datepicker._getInst(event.target);

		if (inst.input.val() !== inst.lastVal) {
			try {
				date = $.datepicker.parseDate($.datepicker._get(inst, "dateFormat"),
					(inst.input ? inst.input.val() : null),
					$.datepicker._getFormatConfig(inst));

				if (date) { // only if valid
					$.datepicker._setDateFromField(inst);
					$.datepicker._updateAlternate(inst);
					$.datepicker._updateDatepicker(inst);
				}
			}
			catch (err) {
			}
		}
		return true;
	},

	/* Pop-up the date picker for a given input field.
	 * If false returned from beforeShow event handler do not show.
	 * @param  input  element - the input field attached to the date picker or
	 *					event - if triggered by focus
	 */
	_showDatepicker: function(input) {
		input = input.target || input;
		if (input.nodeName.toLowerCase() !== "input") { // find from button/image trigger
			input = $("input", input.parentNode)[0];
		}

		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput === input) { // already here
			return;
		}

		var inst, beforeShow, beforeShowSettings, isFixed,
			offset, showAnim, duration;

		inst = $.datepicker._getInst(input);
		if ($.datepicker._curInst && $.datepicker._curInst !== inst) {
			$.datepicker._curInst.dpDiv.stop(true, true);
			if ( inst && $.datepicker._datepickerShowing ) {
				$.datepicker._hideDatepicker( $.datepicker._curInst.input[0] );
			}
		}

		beforeShow = $.datepicker._get(inst, "beforeShow");
		beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
		if(beforeShowSettings === false){
			return;
		}
		extendRemove(inst.settings, beforeShowSettings);

		inst.lastVal = null;
		$.datepicker._lastInput = input;
		$.datepicker._setDateFromField(inst);

		if ($.datepicker._inDialog) { // hide cursor
			input.value = "";
		}
		if (!$.datepicker._pos) { // position below input
			$.datepicker._pos = $.datepicker._findPos(input);
			$.datepicker._pos[1] += input.offsetHeight; // add the height
		}

		isFixed = false;
		$(input).parents().each(function() {
			isFixed |= $(this).css("position") === "fixed";
			return !isFixed;
		});

		offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
		$.datepicker._pos = null;
		//to avoid flashes on Firefox
		inst.dpDiv.empty();
		// determine sizing offscreen
		inst.dpDiv.css({position: "absolute", display: "block", top: "-1000px"});
		$.datepicker._updateDatepicker(inst);
		// fix width for dynamic number of date pickers
		// and adjust position before showing
		offset = $.datepicker._checkOffset(inst, offset, isFixed);
		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
			"static" : (isFixed ? "fixed" : "absolute")), display: "none",
			left: offset.left + "px", top: offset.top + "px"});

		if (!inst.inline) {
			showAnim = $.datepicker._get(inst, "showAnim");
			duration = $.datepicker._get(inst, "duration");
			inst.dpDiv.zIndex($(input).zIndex()+1);
			$.datepicker._datepickerShowing = true;

			if ( $.effects && $.effects.effect[ showAnim ] ) {
				inst.dpDiv.show(showAnim, $.datepicker._get(inst, "showOptions"), duration);
			} else {
				inst.dpDiv[showAnim || "show"](showAnim ? duration : null);
			}

			if ( $.datepicker._shouldFocusInput( inst ) ) {
				inst.input.focus();
			}

			$.datepicker._curInst = inst;
		}
	},

	/* Generate the date picker content. */
	_updateDatepicker: function(inst) {
		this.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
		instActive = inst; // for delegate hover events
		inst.dpDiv.empty().append(this._generateHTML(inst));
		this._attachHandlers(inst);
		inst.dpDiv.find("." + this._dayOverClass + " a").mouseover();

		var origyearshtml,
			numMonths = this._getNumberOfMonths(inst),
			cols = numMonths[1],
			width = 17;

		inst.dpDiv.removeClass("ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4").width("");
		if (cols > 1) {
			inst.dpDiv.addClass("ui-datepicker-multi-" + cols).css("width", (width * cols) + "em");
		}
		inst.dpDiv[(numMonths[0] !== 1 || numMonths[1] !== 1 ? "add" : "remove") +
			"Class"]("ui-datepicker-multi");
		inst.dpDiv[(this._get(inst, "isRTL") ? "add" : "remove") +
			"Class"]("ui-datepicker-rtl");

		if (inst === $.datepicker._curInst && $.datepicker._datepickerShowing && $.datepicker._shouldFocusInput( inst ) ) {
			inst.input.focus();
		}

		// deffered render of the years select (to avoid flashes on Firefox)
		if( inst.yearshtml ){
			origyearshtml = inst.yearshtml;
			setTimeout(function(){
				//assure that inst.yearshtml didn't change.
				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
					inst.dpDiv.find("select.ui-datepicker-year:first").replaceWith(inst.yearshtml);
				}
				origyearshtml = inst.yearshtml = null;
			}, 0);
		}
	},

	// #6694 - don't focus the input if it's already focused
	// this breaks the change event in IE
	// Support: IE and jQuery <1.9
	_shouldFocusInput: function( inst ) {
		return inst.input && inst.input.is( ":visible" ) && !inst.input.is( ":disabled" ) && !inst.input.is( ":focus" );
	},

	/* Check positioning to remain on screen. */
	_checkOffset: function(inst, offset, isFixed) {
		var dpWidth = inst.dpDiv.outerWidth(),
			dpHeight = inst.dpDiv.outerHeight(),
			inputWidth = inst.input ? inst.input.outerWidth() : 0,
			inputHeight = inst.input ? inst.input.outerHeight() : 0,
			viewWidth = document.documentElement.clientWidth + (isFixed ? 0 : $(document).scrollLeft()),
			viewHeight = document.documentElement.clientHeight + (isFixed ? 0 : $(document).scrollTop());

		offset.left -= (this._get(inst, "isRTL") ? (dpWidth - inputWidth) : 0);
		offset.left -= (isFixed && offset.left === inst.input.offset().left) ? $(document).scrollLeft() : 0;
		offset.top -= (isFixed && offset.top === (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;

		// now check if datepicker is showing outside window viewport - move to a better place if so.
		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
			Math.abs(offset.left + dpWidth - viewWidth) : 0);
		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
			Math.abs(dpHeight + inputHeight) : 0);

		return offset;
	},

	/* Find an object's position on the screen. */
	_findPos: function(obj) {
		var position,
			inst = this._getInst(obj),
			isRTL = this._get(inst, "isRTL");

		while (obj && (obj.type === "hidden" || obj.nodeType !== 1 || $.expr.filters.hidden(obj))) {
			obj = obj[isRTL ? "previousSibling" : "nextSibling"];
		}

		position = $(obj).offset();
		return [position.left, position.top];
	},

	/* Hide the date picker from view.
	 * @param  input  element - the input field attached to the date picker
	 */
	_hideDatepicker: function(input) {
		var showAnim, duration, postProcess, onClose,
			inst = this._curInst;

		if (!inst || (input && inst !== $.data(input, PROP_NAME))) {
			return;
		}

		if (this._datepickerShowing) {
			showAnim = this._get(inst, "showAnim");
			duration = this._get(inst, "duration");
			postProcess = function() {
				$.datepicker._tidyDialog(inst);
			};

			// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) ) {
				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, "showOptions"), duration, postProcess);
			} else {
				inst.dpDiv[(showAnim === "slideDown" ? "slideUp" :
					(showAnim === "fadeIn" ? "fadeOut" : "hide"))]((showAnim ? duration : null), postProcess);
			}

			if (!showAnim) {
				postProcess();
			}
			this._datepickerShowing = false;

			onClose = this._get(inst, "onClose");
			if (onClose) {
				onClose.apply((inst.input ? inst.input[0] : null), [(inst.input ? inst.input.val() : ""), inst]);
			}

			this._lastInput = null;
			if (this._inDialog) {
				this._dialogInput.css({ position: "absolute", left: "0", top: "-100px" });
				if ($.blockUI) {
					$.unblockUI();
					$("body").append(this.dpDiv);
				}
			}
			this._inDialog = false;
		}
	},

	/* Tidy up after a dialog display. */
	_tidyDialog: function(inst) {
		inst.dpDiv.removeClass(this._dialogClass).unbind(".ui-datepicker-calendar");
	},

	/* Close date picker if clicked elsewhere. */
	_checkExternalClick: function(event) {
		if (!$.datepicker._curInst) {
			return;
		}

		var $target = $(event.target),
			inst = $.datepicker._getInst($target[0]);

		if ( ( ( $target[0].id !== $.datepicker._mainDivId &&
				$target.parents("#" + $.datepicker._mainDivId).length === 0 &&
				!$target.hasClass($.datepicker.markerClassName) &&
				!$target.closest("." + $.datepicker._triggerClass).length &&
				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI) ) ) ||
			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst !== inst ) ) {
				$.datepicker._hideDatepicker();
		}
	},

	/* Adjust one of the date sub-fields. */
	_adjustDate: function(id, offset, period) {
		var target = $(id),
			inst = this._getInst(target[0]);

		if (this._isDisabledDatepicker(target[0])) {
			return;
		}
		this._adjustInstDate(inst, offset +
			(period === "M" ? this._get(inst, "showCurrentAtPos") : 0), // undo positioning
			period);
		this._updateDatepicker(inst);
	},

	/* Action for current link. */
	_gotoToday: function(id) {
		var date,
			target = $(id),
			inst = this._getInst(target[0]);

		if (this._get(inst, "gotoCurrent") && inst.currentDay) {
			inst.selectedDay = inst.currentDay;
			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
			inst.drawYear = inst.selectedYear = inst.currentYear;
		} else {
			date = new Date();
			inst.selectedDay = date.getDate();
			inst.drawMonth = inst.selectedMonth = date.getMonth();
			inst.drawYear = inst.selectedYear = date.getFullYear();
		}
		this._notifyChange(inst);
		this._adjustDate(target);
	},

	/* Action for selecting a new month/year. */
	_selectMonthYear: function(id, select, period) {
		var target = $(id),
			inst = this._getInst(target[0]);

		inst["selected" + (period === "M" ? "Month" : "Year")] =
		inst["draw" + (period === "M" ? "Month" : "Year")] =
			parseInt(select.options[select.selectedIndex].value,10);

		this._notifyChange(inst);
		this._adjustDate(target);
	},

	/* Action for selecting a day. */
	_selectDay: function(id, month, year, td) {
		var inst,
			target = $(id);

		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
			return;
		}

		inst = this._getInst(target[0]);
		inst.selectedDay = inst.currentDay = $("a", td).html();
		inst.selectedMonth = inst.currentMonth = month;
		inst.selectedYear = inst.currentYear = year;
		this._selectDate(id, this._formatDate(inst,
			inst.currentDay, inst.currentMonth, inst.currentYear));
	},

	/* Erase the input field and hide the date picker. */
	_clearDate: function(id) {
		var target = $(id);
		this._selectDate(target, "");
	},

	/* Update the input field with the selected date. */
	_selectDate: function(id, dateStr) {
		var onSelect,
			target = $(id),
			inst = this._getInst(target[0]);

		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
		if (inst.input) {
			inst.input.val(dateStr);
		}
		this._updateAlternate(inst);

		onSelect = this._get(inst, "onSelect");
		if (onSelect) {
			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
		} else if (inst.input) {
			inst.input.trigger("change"); // fire the change event
		}

		if (inst.inline){
			this._updateDatepicker(inst);
		} else {
			this._hideDatepicker();
			this._lastInput = inst.input[0];
			if (typeof(inst.input[0]) !== "object") {
				inst.input.focus(); // restore focus
			}
			this._lastInput = null;
		}
	},

	/* Update any alternate field to synchronise with the main field. */
	_updateAlternate: function(inst) {
		var altFormat, date, dateStr,
			altField = this._get(inst, "altField");

		if (altField) { // update alternate field too
			altFormat = this._get(inst, "altFormat") || this._get(inst, "dateFormat");
			date = this._getDate(inst);
			dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
			$(altField).each(function() { $(this).val(dateStr); });
		}
	},

	/* Set as beforeShowDay function to prevent selection of weekends.
	 * @param  date  Date - the date to customise
	 * @return [boolean, string] - is this date selectable?, what is its CSS class?
	 */
	noWeekends: function(date) {
		var day = date.getDay();
		return [(day > 0 && day < 6), ""];
	},

	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
	 * @param  date  Date - the date to get the week for
	 * @return  number - the number of the week within the year that contains this date
	 */
	iso8601Week: function(date) {
		var time,
			checkDate = new Date(date.getTime());

		// Find Thursday of this week starting on Monday
		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));

		time = checkDate.getTime();
		checkDate.setMonth(0); // Compare with Jan 1
		checkDate.setDate(1);
		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
	},

	/* Parse a string value into a date object.
	 * See formatDate below for the possible formats.
	 *
	 * @param  format string - the expected format of the date
	 * @param  value string - the date in the above format
	 * @param  settings Object - attributes include:
	 *					shortYearCutoff  number - the cutoff year for determining the century (optional)
	 *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
	 *					dayNames		string[7] - names of the days from Sunday (optional)
	 *					monthNamesShort string[12] - abbreviated names of the months (optional)
	 *					monthNames		string[12] - names of the months (optional)
	 * @return  Date - the extracted date value or null if value is blank
	 */
	parseDate: function (format, value, settings) {
		if (format == null || value == null) {
			throw "Invalid arguments";
		}

		value = (typeof value === "object" ? value.toString() : value + "");
		if (value === "") {
			return null;
		}

		var iFormat, dim, extra,
			iValue = 0,
			shortYearCutoffTemp = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff,
			shortYearCutoff = (typeof shortYearCutoffTemp !== "string" ? shortYearCutoffTemp :
				new Date().getFullYear() % 100 + parseInt(shortYearCutoffTemp, 10)),
			dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort,
			dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames,
			monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort,
			monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames,
			year = -1,
			month = -1,
			day = -1,
			doy = -1,
			literal = false,
			date,
			// Check whether a format character is doubled
			lookAhead = function(match) {
				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
				if (matches) {
					iFormat++;
				}
				return matches;
			},
			// Extract a number from the string value
			getNumber = function(match) {
				var isDoubled = lookAhead(match),
					size = (match === "@" ? 14 : (match === "!" ? 20 :
					(match === "y" && isDoubled ? 4 : (match === "o" ? 3 : 2)))),
					digits = new RegExp("^\\d{1," + size + "}"),
					num = value.substring(iValue).match(digits);
				if (!num) {
					throw "Missing number at position " + iValue;
				}
				iValue += num[0].length;
				return parseInt(num[0], 10);
			},
			// Extract a name from the string value and convert to an index
			getName = function(match, shortNames, longNames) {
				var index = -1,
					names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
						return [ [k, v] ];
					}).sort(function (a, b) {
						return -(a[1].length - b[1].length);
					});

				$.each(names, function (i, pair) {
					var name = pair[1];
					if (value.substr(iValue, name.length).toLowerCase() === name.toLowerCase()) {
						index = pair[0];
						iValue += name.length;
						return false;
					}
				});
				if (index !== -1) {
					return index + 1;
				} else {
					throw "Unknown name at position " + iValue;
				}
			},
			// Confirm that a literal character matches the string value
			checkLiteral = function() {
				if (value.charAt(iValue) !== format.charAt(iFormat)) {
					throw "Unexpected literal at position " + iValue;
				}
				iValue++;
			};

		for (iFormat = 0; iFormat < format.length; iFormat++) {
			if (literal) {
				if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
					literal = false;
				} else {
					checkLiteral();
				}
			} else {
				switch (format.charAt(iFormat)) {
					case "d":
						day = getNumber("d");
						break;
					case "D":
						getName("D", dayNamesShort, dayNames);
						break;
					case "o":
						doy = getNumber("o");
						break;
					case "m":
						month = getNumber("m");
						break;
					case "M":
						month = getName("M", monthNamesShort, monthNames);
						break;
					case "y":
						year = getNumber("y");
						break;
					case "@":
						date = new Date(getNumber("@"));
						year = date.getFullYear();
						month = date.getMonth() + 1;
						day = date.getDate();
						break;
					case "!":
						date = new Date((getNumber("!") - this._ticksTo1970) / 10000);
						year = date.getFullYear();
						month = date.getMonth() + 1;
						day = date.getDate();
						break;
					case "'":
						if (lookAhead("'")){
							checkLiteral();
						} else {
							literal = true;
						}
						break;
					default:
						checkLiteral();
				}
			}
		}

		if (iValue < value.length){
			extra = value.substr(iValue);
			if (!/^\s+/.test(extra)) {
				throw "Extra/unparsed characters found in date: " + extra;
			}
		}

		if (year === -1) {
			year = new Date().getFullYear();
		} else if (year < 100) {
			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
				(year <= shortYearCutoff ? 0 : -100);
		}

		if (doy > -1) {
			month = 1;
			day = doy;
			do {
				dim = this._getDaysInMonth(year, month - 1);
				if (day <= dim) {
					break;
				}
				month++;
				day -= dim;
			} while (true);
		}

		date = this._daylightSavingAdjust(new Date(year, month - 1, day));
		if (date.getFullYear() !== year || date.getMonth() + 1 !== month || date.getDate() !== day) {
			throw "Invalid date"; // E.g. 31/02/00
		}
		return date;
	},

	/* Standard date formats. */
	ATOM: "yy-mm-dd", // RFC 3339 (ISO 8601)
	COOKIE: "D, dd M yy",
	ISO_8601: "yy-mm-dd",
	RFC_822: "D, d M y",
	RFC_850: "DD, dd-M-y",
	RFC_1036: "D, d M y",
	RFC_1123: "D, d M yy",
	RFC_2822: "D, d M yy",
	RSS: "D, d M y", // RFC 822
	TICKS: "!",
	TIMESTAMP: "@",
	W3C: "yy-mm-dd", // ISO 8601

	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),

	/* Format a date object into a string value.
	 * The format can be combinations of the following:
	 * d  - day of month (no leading zero)
	 * dd - day of month (two digit)
	 * o  - day of year (no leading zeros)
	 * oo - day of year (three digit)
	 * D  - day name short
	 * DD - day name long
	 * m  - month of year (no leading zero)
	 * mm - month of year (two digit)
	 * M  - month name short
	 * MM - month name long
	 * y  - year (two digit)
	 * yy - year (four digit)
	 * @ - Unix timestamp (ms since 01/01/1970)
	 * ! - Windows ticks (100ns since 01/01/0001)
	 * "..." - literal text
	 * '' - single quote
	 *
	 * @param  format string - the desired format of the date
	 * @param  date Date - the date value to format
	 * @param  settings Object - attributes include:
	 *					dayNamesShort	string[7] - abbreviated names of the days from Sunday (optional)
	 *					dayNames		string[7] - names of the days from Sunday (optional)
	 *					monthNamesShort string[12] - abbreviated names of the months (optional)
	 *					monthNames		string[12] - names of the months (optional)
	 * @return  string - the date in the above format
	 */
	formatDate: function (format, date, settings) {
		if (!date) {
			return "";
		}

		var iFormat,
			dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort,
			dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames,
			monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort,
			monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames,
			// Check whether a format character is doubled
			lookAhead = function(match) {
				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
				if (matches) {
					iFormat++;
				}
				return matches;
			},
			// Format a number, with leading zero if necessary
			formatNumber = function(match, value, len) {
				var num = "" + value;
				if (lookAhead(match)) {
					while (num.length < len) {
						num = "0" + num;
					}
				}
				return num;
			},
			// Format a name, short or long as requested
			formatName = function(match, value, shortNames, longNames) {
				return (lookAhead(match) ? longNames[value] : shortNames[value]);
			},
			output = "",
			literal = false;

		if (date) {
			for (iFormat = 0; iFormat < format.length; iFormat++) {
				if (literal) {
					if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
						literal = false;
					} else {
						output += format.charAt(iFormat);
					}
				} else {
					switch (format.charAt(iFormat)) {
						case "d":
							output += formatNumber("d", date.getDate(), 2);
							break;
						case "D":
							output += formatName("D", date.getDay(), dayNamesShort, dayNames);
							break;
						case "o":
							output += formatNumber("o",
								Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
							break;
						case "m":
							output += formatNumber("m", date.getMonth() + 1, 2);
							break;
						case "M":
							output += formatName("M", date.getMonth(), monthNamesShort, monthNames);
							break;
						case "y":
							output += (lookAhead("y") ? date.getFullYear() :
								(date.getYear() % 100 < 10 ? "0" : "") + date.getYear() % 100);
							break;
						case "@":
							output += date.getTime();
							break;
						case "!":
							output += date.getTime() * 10000 + this._ticksTo1970;
							break;
						case "'":
							if (lookAhead("'")) {
								output += "'";
							} else {
								literal = true;
							}
							break;
						default:
							output += format.charAt(iFormat);
					}
				}
			}
		}
		return output;
	},

	/* Extract all possible characters from the date format. */
	_possibleChars: function (format) {
		var iFormat,
			chars = "",
			literal = false,
			// Check whether a format character is doubled
			lookAhead = function(match) {
				var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) === match);
				if (matches) {
					iFormat++;
				}
				return matches;
			};

		for (iFormat = 0; iFormat < format.length; iFormat++) {
			if (literal) {
				if (format.charAt(iFormat) === "'" && !lookAhead("'")) {
					literal = false;
				} else {
					chars += format.charAt(iFormat);
				}
			} else {
				switch (format.charAt(iFormat)) {
					case "d": case "m": case "y": case "@":
						chars += "0123456789";
						break;
					case "D": case "M":
						return null; // Accept anything
					case "'":
						if (lookAhead("'")) {
							chars += "'";
						} else {
							literal = true;
						}
						break;
					default:
						chars += format.charAt(iFormat);
				}
			}
		}
		return chars;
	},

	/* Get a setting value, defaulting if necessary. */
	_get: function(inst, name) {
		return inst.settings[name] !== undefined ?
			inst.settings[name] : this._defaults[name];
	},

	/* Parse existing date and initialise date picker. */
	_setDateFromField: function(inst, noDefault) {
		if (inst.input.val() === inst.lastVal) {
			return;
		}

		var dateFormat = this._get(inst, "dateFormat"),
			dates = inst.lastVal = inst.input ? inst.input.val() : null,
			defaultDate = this._getDefaultDate(inst),
			date = defaultDate,
			settings = this._getFormatConfig(inst);

		try {
			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
		} catch (event) {
			dates = (noDefault ? "" : dates);
		}
		inst.selectedDay = date.getDate();
		inst.drawMonth = inst.selectedMonth = date.getMonth();
		inst.drawYear = inst.selectedYear = date.getFullYear();
		inst.currentDay = (dates ? date.getDate() : 0);
		inst.currentMonth = (dates ? date.getMonth() : 0);
		inst.currentYear = (dates ? date.getFullYear() : 0);
		this._adjustInstDate(inst);
	},

	/* Retrieve the default date shown on opening. */
	_getDefaultDate: function(inst) {
		return this._restrictMinMax(inst,
			this._determineDate(inst, this._get(inst, "defaultDate"), new Date()));
	},

	/* A date may be specified as an exact value or a relative one. */
	_determineDate: function(inst, date, defaultDate) {
		var offsetNumeric = function(offset) {
				var date = new Date();
				date.setDate(date.getDate() + offset);
				return date;
			},
			offsetString = function(offset) {
				try {
					return $.datepicker.parseDate($.datepicker._get(inst, "dateFormat"),
						offset, $.datepicker._getFormatConfig(inst));
				}
				catch (e) {
					// Ignore
				}

				var date = (offset.toLowerCase().match(/^c/) ?
					$.datepicker._getDate(inst) : null) || new Date(),
					year = date.getFullYear(),
					month = date.getMonth(),
					day = date.getDate(),
					pattern = /([+\-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g,
					matches = pattern.exec(offset);

				while (matches) {
					switch (matches[2] || "d") {
						case "d" : case "D" :
							day += parseInt(matches[1],10); break;
						case "w" : case "W" :
							day += parseInt(matches[1],10) * 7; break;
						case "m" : case "M" :
							month += parseInt(matches[1],10);
							day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
							break;
						case "y": case "Y" :
							year += parseInt(matches[1],10);
							day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
							break;
					}
					matches = pattern.exec(offset);
				}
				return new Date(year, month, day);
			},
			newDate = (date == null || date === "" ? defaultDate : (typeof date === "string" ? offsetString(date) :
				(typeof date === "number" ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));

		newDate = (newDate && newDate.toString() === "Invalid Date" ? defaultDate : newDate);
		if (newDate) {
			newDate.setHours(0);
			newDate.setMinutes(0);
			newDate.setSeconds(0);
			newDate.setMilliseconds(0);
		}
		return this._daylightSavingAdjust(newDate);
	},

	/* Handle switch to/from daylight saving.
	 * Hours may be non-zero on daylight saving cut-over:
	 * > 12 when midnight changeover, but then cannot generate
	 * midnight datetime, so jump to 1AM, otherwise reset.
	 * @param  date  (Date) the date to check
	 * @return  (Date) the corrected date
	 */
	_daylightSavingAdjust: function(date) {
		if (!date) {
			return null;
		}
		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
		return date;
	},

	/* Set the date(s) directly. */
	_setDate: function(inst, date, noChange) {
		var clear = !date,
			origMonth = inst.selectedMonth,
			origYear = inst.selectedYear,
			newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));

		inst.selectedDay = inst.currentDay = newDate.getDate();
		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
		if ((origMonth !== inst.selectedMonth || origYear !== inst.selectedYear) && !noChange) {
			this._notifyChange(inst);
		}
		this._adjustInstDate(inst);
		if (inst.input) {
			inst.input.val(clear ? "" : this._formatDate(inst));
		}
	},

	/* Retrieve the date(s) directly. */
	_getDate: function(inst) {
		var startDate = (!inst.currentYear || (inst.input && inst.input.val() === "") ? null :
			this._daylightSavingAdjust(new Date(
			inst.currentYear, inst.currentMonth, inst.currentDay)));
			return startDate;
	},

	/* Attach the onxxx handlers.  These are declared statically so
	 * they work with static code transformers like Caja.
	 */
	_attachHandlers: function(inst) {
		var stepMonths = this._get(inst, "stepMonths"),
			id = "#" + inst.id.replace( /\\\\/g, "\\" );
		inst.dpDiv.find("[data-handler]").map(function () {
			var handler = {
				prev: function () {
					$.datepicker._adjustDate(id, -stepMonths, "M");
				},
				next: function () {
					$.datepicker._adjustDate(id, +stepMonths, "M");
				},
				hide: function () {
					$.datepicker._hideDatepicker();
				},
				today: function () {
					$.datepicker._gotoToday(id);
				},
				selectDay: function () {
					$.datepicker._selectDay(id, +this.getAttribute("data-month"), +this.getAttribute("data-year"), this);
					return false;
				},
				selectMonth: function () {
					$.datepicker._selectMonthYear(id, this, "M");
					return false;
				},
				selectYear: function () {
					$.datepicker._selectMonthYear(id, this, "Y");
					return false;
				}
			};
			$(this).bind(this.getAttribute("data-event"), handler[this.getAttribute("data-handler")]);
		});
	},

	/* Generate the HTML for the current state of the date picker. */
	_generateHTML: function(inst) {
		var maxDraw, prevText, prev, nextText, next, currentText, gotoDate,
			controls, buttonPanel, firstDay, showWeek, dayNames, dayNamesMin,
			monthNames, monthNamesShort, beforeShowDay, showOtherMonths,
			selectOtherMonths, defaultDate, html, dow, row, group, col, selectedDate,
			cornerClass, calender, thead, day, daysInMonth, leadDays, curRows, numRows,
			printDate, dRow, tbody, daySettings, otherMonth, unselectable,
			tempDate = new Date(),
			today = this._daylightSavingAdjust(
				new Date(tempDate.getFullYear(), tempDate.getMonth(), tempDate.getDate())), // clear time
			isRTL = this._get(inst, "isRTL"),
			showButtonPanel = this._get(inst, "showButtonPanel"),
			hideIfNoPrevNext = this._get(inst, "hideIfNoPrevNext"),
			navigationAsDateFormat = this._get(inst, "navigationAsDateFormat"),
			numMonths = this._getNumberOfMonths(inst),
			showCurrentAtPos = this._get(inst, "showCurrentAtPos"),
			stepMonths = this._get(inst, "stepMonths"),
			isMultiMonth = (numMonths[0] !== 1 || numMonths[1] !== 1),
			currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
				new Date(inst.currentYear, inst.currentMonth, inst.currentDay))),
			minDate = this._getMinMaxDate(inst, "min"),
			maxDate = this._getMinMaxDate(inst, "max"),
			drawMonth = inst.drawMonth - showCurrentAtPos,
			drawYear = inst.drawYear;

		if (drawMonth < 0) {
			drawMonth += 12;
			drawYear--;
		}
		if (maxDate) {
			maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
				drawMonth--;
				if (drawMonth < 0) {
					drawMonth = 11;
					drawYear--;
				}
			}
		}
		inst.drawMonth = drawMonth;
		inst.drawYear = drawYear;

		prevText = this._get(inst, "prevText");
		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
			this._getFormatConfig(inst)));

		prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
			"<a class='ui-datepicker-prev ui-corner-all' data-handler='prev' data-event='click'" +
			" title='" + prevText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "e" : "w") + "'>" + prevText + "</span></a>" :
			(hideIfNoPrevNext ? "" : "<a class='ui-datepicker-prev ui-corner-all ui-state-disabled' title='"+ prevText +"'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "e" : "w") + "'>" + prevText + "</span></a>"));

		nextText = this._get(inst, "nextText");
		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
			this._getFormatConfig(inst)));

		next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
			"<a class='ui-datepicker-next ui-corner-all' data-handler='next' data-event='click'" +
			" title='" + nextText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "w" : "e") + "'>" + nextText + "</span></a>" :
			(hideIfNoPrevNext ? "" : "<a class='ui-datepicker-next ui-corner-all ui-state-disabled' title='"+ nextText + "'><span class='ui-icon ui-icon-circle-triangle-" + ( isRTL ? "w" : "e") + "'>" + nextText + "</span></a>"));

		currentText = this._get(inst, "currentText");
		gotoDate = (this._get(inst, "gotoCurrent") && inst.currentDay ? currentDate : today);
		currentText = (!navigationAsDateFormat ? currentText :
			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));

		controls = (!inst.inline ? "<button type='button' class='ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all' data-handler='hide' data-event='click'>" +
			this._get(inst, "closeText") + "</button>" : "");

		buttonPanel = (showButtonPanel) ? "<div class='ui-datepicker-buttonpane ui-widget-content'>" + (isRTL ? controls : "") +
			(this._isInRange(inst, gotoDate) ? "<button type='button' class='ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all' data-handler='today' data-event='click'" +
			">" + currentText + "</button>" : "") + (isRTL ? "" : controls) + "</div>" : "";

		firstDay = parseInt(this._get(inst, "firstDay"),10);
		firstDay = (isNaN(firstDay) ? 0 : firstDay);

		showWeek = this._get(inst, "showWeek");
		dayNames = this._get(inst, "dayNames");
		dayNamesMin = this._get(inst, "dayNamesMin");
		monthNames = this._get(inst, "monthNames");
		monthNamesShort = this._get(inst, "monthNamesShort");
		beforeShowDay = this._get(inst, "beforeShowDay");
		showOtherMonths = this._get(inst, "showOtherMonths");
		selectOtherMonths = this._get(inst, "selectOtherMonths");
		defaultDate = this._getDefaultDate(inst);
		html = "";
		dow;
		for (row = 0; row < numMonths[0]; row++) {
			group = "";
			this.maxRows = 4;
			for (col = 0; col < numMonths[1]; col++) {
				selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
				cornerClass = " ui-corner-all";
				calender = "";
				if (isMultiMonth) {
					calender += "<div class='ui-datepicker-group";
					if (numMonths[1] > 1) {
						switch (col) {
							case 0: calender += " ui-datepicker-group-first";
								cornerClass = " ui-corner-" + (isRTL ? "right" : "left"); break;
							case numMonths[1]-1: calender += " ui-datepicker-group-last";
								cornerClass = " ui-corner-" + (isRTL ? "left" : "right"); break;
							default: calender += " ui-datepicker-group-middle"; cornerClass = ""; break;
						}
					}
					calender += "'>";
				}
				calender += "<div class='ui-datepicker-header ui-widget-header ui-helper-clearfix" + cornerClass + "'>" +
					(/all|left/.test(cornerClass) && row === 0 ? (isRTL ? next : prev) : "") +
					(/all|right/.test(cornerClass) && row === 0 ? (isRTL ? prev : next) : "") +
					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
					"</div><table class='ui-datepicker-calendar'><thead>" +
					"<tr>";
				thead = (showWeek ? "<th class='ui-datepicker-week-col'>" + this._get(inst, "weekHeader") + "</th>" : "");
				for (dow = 0; dow < 7; dow++) { // days of the week
					day = (dow + firstDay) % 7;
					thead += "<th" + ((dow + firstDay + 6) % 7 >= 5 ? " class='ui-datepicker-week-end'" : "") + ">" +
						"<span title='" + dayNames[day] + "'>" + dayNamesMin[day] + "</span></th>";
				}
				calender += thead + "</tr></thead><tbody>";
				daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
				if (drawYear === inst.selectedYear && drawMonth === inst.selectedMonth) {
					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
				}
				leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
				curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
				numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
				this.maxRows = numRows;
				printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
				for (dRow = 0; dRow < numRows; dRow++) { // create date picker rows
					calender += "<tr>";
					tbody = (!showWeek ? "" : "<td class='ui-datepicker-week-col'>" +
						this._get(inst, "calculateWeek")(printDate) + "</td>");
					for (dow = 0; dow < 7; dow++) { // create date picker days
						daySettings = (beforeShowDay ?
							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, ""]);
						otherMonth = (printDate.getMonth() !== drawMonth);
						unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
						tbody += "<td class='" +
							((dow + firstDay + 6) % 7 >= 5 ? " ui-datepicker-week-end" : "") + // highlight weekends
							(otherMonth ? " ui-datepicker-other-month" : "") + // highlight days from other months
							((printDate.getTime() === selectedDate.getTime() && drawMonth === inst.selectedMonth && inst._keyEvent) || // user pressed key
							(defaultDate.getTime() === printDate.getTime() && defaultDate.getTime() === selectedDate.getTime()) ?
							// or defaultDate is current printedDate and defaultDate is selectedDate
							" " + this._dayOverClass : "") + // highlight selected day
							(unselectable ? " " + this._unselectableClass + " ui-state-disabled": "") +  // highlight unselectable days
							(otherMonth && !showOtherMonths ? "" : " " + daySettings[1] + // highlight custom dates
							(printDate.getTime() === currentDate.getTime() ? " " + this._currentClass : "") + // highlight selected day
							(printDate.getTime() === today.getTime() ? " ui-datepicker-today" : "")) + "'" + // highlight today (if different)
							((!otherMonth || showOtherMonths) && daySettings[2] ? " title='" + daySettings[2].replace(/'/g, "&#39;") + "'" : "") + // cell title
							(unselectable ? "" : " data-handler='selectDay' data-event='click' data-month='" + printDate.getMonth() + "' data-year='" + printDate.getFullYear() + "'") + ">" + // actions
							(otherMonth && !showOtherMonths ? "&#xa0;" : // display for other months
							(unselectable ? "<span class='ui-state-default'>" + printDate.getDate() + "</span>" : "<a class='ui-state-default" +
							(printDate.getTime() === today.getTime() ? " ui-state-highlight" : "") +
							(printDate.getTime() === currentDate.getTime() ? " ui-state-active" : "") + // highlight selected day
							(otherMonth ? " ui-priority-secondary" : "") + // distinguish dates from other months
							"' href='#'>" + printDate.getDate() + "</a>")) + "</td>"; // display selectable date
						printDate.setDate(printDate.getDate() + 1);
						printDate = this._daylightSavingAdjust(printDate);
					}
					calender += tbody + "</tr>";
				}
				drawMonth++;
				if (drawMonth > 11) {
					drawMonth = 0;
					drawYear++;
				}
				calender += "</tbody></table>" + (isMultiMonth ? "</div>" +
							((numMonths[0] > 0 && col === numMonths[1]-1) ? "<div class='ui-datepicker-row-break'></div>" : "") : "");
				group += calender;
			}
			html += group;
		}
		html += buttonPanel;
		inst._keyEvent = false;
		return html;
	},

	/* Generate the month and year header. */
	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
			secondary, monthNames, monthNamesShort) {

		var inMinYear, inMaxYear, month, years, thisYear, determineYear, year, endYear,
			changeMonth = this._get(inst, "changeMonth"),
			changeYear = this._get(inst, "changeYear"),
			showMonthAfterYear = this._get(inst, "showMonthAfterYear"),
			html = "<div class='ui-datepicker-title'>",
			monthHtml = "";

		// month selection
		if (secondary || !changeMonth) {
			monthHtml += "<span class='ui-datepicker-month'>" + monthNames[drawMonth] + "</span>";
		} else {
			inMinYear = (minDate && minDate.getFullYear() === drawYear);
			inMaxYear = (maxDate && maxDate.getFullYear() === drawYear);
			monthHtml += "<select class='ui-datepicker-month' data-handler='selectMonth' data-event='change'>";
			for ( month = 0; month < 12; month++) {
				if ((!inMinYear || month >= minDate.getMonth()) && (!inMaxYear || month <= maxDate.getMonth())) {
					monthHtml += "<option value='" + month + "'" +
						(month === drawMonth ? " selected='selected'" : "") +
						">" + monthNamesShort[month] + "</option>";
				}
			}
			monthHtml += "</select>";
		}

		if (!showMonthAfterYear) {
			html += monthHtml + (secondary || !(changeMonth && changeYear) ? "&#xa0;" : "");
		}

		// year selection
		if ( !inst.yearshtml ) {
			inst.yearshtml = "";
			if (secondary || !changeYear) {
				html += "<span class='ui-datepicker-year'>" + drawYear + "</span>";
			} else {
				// determine range of years to display
				years = this._get(inst, "yearRange").split(":");
				thisYear = new Date().getFullYear();
				determineYear = function(value) {
					var year = (value.match(/c[+\-].*/) ? drawYear + parseInt(value.substring(1), 10) :
						(value.match(/[+\-].*/) ? thisYear + parseInt(value, 10) :
						parseInt(value, 10)));
					return (isNaN(year) ? thisYear : year);
				};
				year = determineYear(years[0]);
				endYear = Math.max(year, determineYear(years[1] || ""));
				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
				inst.yearshtml += "<select class='ui-datepicker-year' data-handler='selectYear' data-event='change'>";
				for (; year <= endYear; year++) {
					inst.yearshtml += "<option value='" + year + "'" +
						(year === drawYear ? " selected='selected'" : "") +
						">" + year + "</option>";
				}
				inst.yearshtml += "</select>";

				html += inst.yearshtml;
				inst.yearshtml = null;
			}
		}

		html += this._get(inst, "yearSuffix");
		if (showMonthAfterYear) {
			html += (secondary || !(changeMonth && changeYear) ? "&#xa0;" : "") + monthHtml;
		}
		html += "</div>"; // Close datepicker_header
		return html;
	},

	/* Adjust one of the date sub-fields. */
	_adjustInstDate: function(inst, offset, period) {
		var year = inst.drawYear + (period === "Y" ? offset : 0),
			month = inst.drawMonth + (period === "M" ? offset : 0),
			day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) + (period === "D" ? offset : 0),
			date = this._restrictMinMax(inst, this._daylightSavingAdjust(new Date(year, month, day)));

		inst.selectedDay = date.getDate();
		inst.drawMonth = inst.selectedMonth = date.getMonth();
		inst.drawYear = inst.selectedYear = date.getFullYear();
		if (period === "M" || period === "Y") {
			this._notifyChange(inst);
		}
	},

	/* Ensure a date is within any min/max bounds. */
	_restrictMinMax: function(inst, date) {
		var minDate = this._getMinMaxDate(inst, "min"),
			maxDate = this._getMinMaxDate(inst, "max"),
			newDate = (minDate && date < minDate ? minDate : date);
		return (maxDate && newDate > maxDate ? maxDate : newDate);
	},

	/* Notify change of month/year. */
	_notifyChange: function(inst) {
		var onChange = this._get(inst, "onChangeMonthYear");
		if (onChange) {
			onChange.apply((inst.input ? inst.input[0] : null),
				[inst.selectedYear, inst.selectedMonth + 1, inst]);
		}
	},

	/* Determine the number of months to show. */
	_getNumberOfMonths: function(inst) {
		var numMonths = this._get(inst, "numberOfMonths");
		return (numMonths == null ? [1, 1] : (typeof numMonths === "number" ? [1, numMonths] : numMonths));
	},

	/* Determine the current maximum date - ensure no time components are set. */
	_getMinMaxDate: function(inst, minMax) {
		return this._determineDate(inst, this._get(inst, minMax + "Date"), null);
	},

	/* Find the number of days in a given month. */
	_getDaysInMonth: function(year, month) {
		return 32 - this._daylightSavingAdjust(new Date(year, month, 32)).getDate();
	},

	/* Find the day of the week of the first of a month. */
	_getFirstDayOfMonth: function(year, month) {
		return new Date(year, month, 1).getDay();
	},

	/* Determines if we should allow a "next/prev" month display change. */
	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
		var numMonths = this._getNumberOfMonths(inst),
			date = this._daylightSavingAdjust(new Date(curYear,
			curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));

		if (offset < 0) {
			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
		}
		return this._isInRange(inst, date);
	},

	/* Is the given date in the accepted range? */
	_isInRange: function(inst, date) {
		var yearSplit, currentYear,
			minDate = this._getMinMaxDate(inst, "min"),
			maxDate = this._getMinMaxDate(inst, "max"),
			minYear = null,
			maxYear = null,
			years = this._get(inst, "yearRange");
			if (years){
				yearSplit = years.split(":");
				currentYear = new Date().getFullYear();
				minYear = parseInt(yearSplit[0], 10);
				maxYear = parseInt(yearSplit[1], 10);
				if ( yearSplit[0].match(/[+\-].*/) ) {
					minYear += currentYear;
				}
				if ( yearSplit[1].match(/[+\-].*/) ) {
					maxYear += currentYear;
				}
			}

		return ((!minDate || date.getTime() >= minDate.getTime()) &&
			(!maxDate || date.getTime() <= maxDate.getTime()) &&
			(!minYear || date.getFullYear() >= minYear) &&
			(!maxYear || date.getFullYear() <= maxYear));
	},

	/* Provide the configuration settings for formatting/parsing. */
	_getFormatConfig: function(inst) {
		var shortYearCutoff = this._get(inst, "shortYearCutoff");
		shortYearCutoff = (typeof shortYearCutoff !== "string" ? shortYearCutoff :
			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
		return {shortYearCutoff: shortYearCutoff,
			dayNamesShort: this._get(inst, "dayNamesShort"), dayNames: this._get(inst, "dayNames"),
			monthNamesShort: this._get(inst, "monthNamesShort"), monthNames: this._get(inst, "monthNames")};
	},

	/* Format the given date for display. */
	_formatDate: function(inst, day, month, year) {
		if (!day) {
			inst.currentDay = inst.selectedDay;
			inst.currentMonth = inst.selectedMonth;
			inst.currentYear = inst.selectedYear;
		}
		var date = (day ? (typeof day === "object" ? day :
			this._daylightSavingAdjust(new Date(year, month, day))) :
			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
		return this.formatDate(this._get(inst, "dateFormat"), date, this._getFormatConfig(inst));
	}
});

/*
 * Bind hover events for datepicker elements.
 * Done via delegate so the binding only occurs once in the lifetime of the parent div.
 * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
 */
function bindHover(dpDiv) {
	var selector = "button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a";
	return dpDiv.delegate(selector, "mouseout", function() {
			$(this).removeClass("ui-state-hover");
			if (this.className.indexOf("ui-datepicker-prev") !== -1) {
				$(this).removeClass("ui-datepicker-prev-hover");
			}
			if (this.className.indexOf("ui-datepicker-next") !== -1) {
				$(this).removeClass("ui-datepicker-next-hover");
			}
		})
		.delegate(selector, "mouseover", function(){
			if (!$.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0])) {
				$(this).parents(".ui-datepicker-calendar").find("a").removeClass("ui-state-hover");
				$(this).addClass("ui-state-hover");
				if (this.className.indexOf("ui-datepicker-prev") !== -1) {
					$(this).addClass("ui-datepicker-prev-hover");
				}
				if (this.className.indexOf("ui-datepicker-next") !== -1) {
					$(this).addClass("ui-datepicker-next-hover");
				}
			}
		});
}

/* jQuery extend now ignores nulls! */
function extendRemove(target, props) {
	$.extend(target, props);
	for (var name in props) {
		if (props[name] == null) {
			target[name] = props[name];
		}
	}
	return target;
}

/* Invoke the datepicker functionality.
   @param  options  string - a command, optionally followed by additional parameters or
					Object - settings for attaching new datepicker functionality
   @return  jQuery object */
$.fn.datepicker = function(options){

	/* Verify an empty collection wasn't passed - Fixes #6976 */
	if ( !this.length ) {
		return this;
	}

	/* Initialise the date picker. */
	if (!$.datepicker.initialized) {
		$(document).mousedown($.datepicker._checkExternalClick);
		$.datepicker.initialized = true;
	}

	/* Append datepicker main container to body if not exist. */
	if ($("#"+$.datepicker._mainDivId).length === 0) {
		$("body").append($.datepicker.dpDiv);
	}

	var otherArgs = Array.prototype.slice.call(arguments, 1);
	if (typeof options === "string" && (options === "isDisabled" || options === "getDate" || options === "widget")) {
		return $.datepicker["_" + options + "Datepicker"].
			apply($.datepicker, [this[0]].concat(otherArgs));
	}
	if (options === "option" && arguments.length === 2 && typeof arguments[1] === "string") {
		return $.datepicker["_" + options + "Datepicker"].
			apply($.datepicker, [this[0]].concat(otherArgs));
	}
	return this.each(function() {
		typeof options === "string" ?
			$.datepicker["_" + options + "Datepicker"].
				apply($.datepicker, [this].concat(otherArgs)) :
			$.datepicker._attachDatepicker(this, options);
	});
};

$.datepicker = new Datepicker(); // singleton instance
$.datepicker.initialized = false;
$.datepicker.uuid = new Date().getTime();
$.datepicker.version = "1.10.3";

})(jQuery);

(function( $, undefined ) {

var sizeRelatedOptions = {
		buttons: true,
		height: true,
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true,
		width: true
	},
	resizableRelatedOptions = {
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true
	};

$.widget( "ui.dialog", {
	version: "1.10.3",
	options: {
		appendTo: "body",
		autoOpen: true,
		buttons: [],
		closeOnEscape: true,
		closeText: "close",
		dialogClass: "",
		draggable: true,
		hide: null,
		height: "auto",
		maxHeight: null,
		maxWidth: null,
		minHeight: 150,
		minWidth: 150,
		modal: false,
		position: {
			my: "center",
			at: "center",
			of: window,
			collision: "fit",
			// Ensure the titlebar is always visible
			using: function( pos ) {
				var topOffset = $( this ).css( pos ).offset().top;
				if ( topOffset < 0 ) {
					$( this ).css( "top", pos.top - topOffset );
				}
			}
		},
		resizable: true,
		show: null,
		title: null,
		width: 300,

		// callbacks
		beforeClose: null,
		close: null,
		drag: null,
		dragStart: null,
		dragStop: null,
		focus: null,
		open: null,
		resize: null,
		resizeStart: null,
		resizeStop: null
	},

	_create: function() {
		this.originalCss = {
			display: this.element[0].style.display,
			width: this.element[0].style.width,
			minHeight: this.element[0].style.minHeight,
			maxHeight: this.element[0].style.maxHeight,
			height: this.element[0].style.height
		};
		this.originalPosition = {
			parent: this.element.parent(),
			index: this.element.parent().children().index( this.element )
		};
		this.originalTitle = this.element.attr("title");
		this.options.title = this.options.title || this.originalTitle;

		this._createWrapper();

		this.element
			.show()
			.removeAttr("title")
			.addClass("ui-dialog-content ui-widget-content")
			.appendTo( this.uiDialog );

		this._createTitlebar();
		this._createButtonPane();

		if ( this.options.draggable && $.fn.draggable ) {
			this._makeDraggable();
		}
		if ( this.options.resizable && $.fn.resizable ) {
			this._makeResizable();
		}

		this._isOpen = false;
	},

	_init: function() {
		if ( this.options.autoOpen ) {
			this.open();
		}
	},

	_appendTo: function() {
		var element = this.options.appendTo;
		if ( element && (element.jquery || element.nodeType) ) {
			return $( element );
		}
		return this.document.find( element || "body" ).eq( 0 );
	},

	_destroy: function() {
		var next,
			originalPosition = this.originalPosition;

		this._destroyOverlay();

		this.element
			.removeUniqueId()
			.removeClass("ui-dialog-content ui-widget-content")
			.css( this.originalCss )
			// Without detaching first, the following becomes really slow
			.detach();

		this.uiDialog.stop( true, true ).remove();

		if ( this.originalTitle ) {
			this.element.attr( "title", this.originalTitle );
		}

		next = originalPosition.parent.children().eq( originalPosition.index );
		// Don't try to place the dialog next to itself (#8613)
		if ( next.length && next[0] !== this.element[0] ) {
			next.before( this.element );
		} else {
			originalPosition.parent.append( this.element );
		}
	},

	widget: function() {
		return this.uiDialog;
	},

	disable: $.noop,
	enable: $.noop,

	close: function( event ) {
		var that = this;

		if ( !this._isOpen || this._trigger( "beforeClose", event ) === false ) {
			return;
		}

		this._isOpen = false;
		this._destroyOverlay();

		if ( !this.opener.filter(":focusable").focus().length ) {
			// Hiding a focused element doesn't trigger blur in WebKit
			// so in case we have nothing to focus on, explicitly blur the active element
			// https://bugs.webkit.org/show_bug.cgi?id=47182
			$( this.document[0].activeElement ).blur();
		}

		this._hide( this.uiDialog, this.options.hide, function() {
			that._trigger( "close", event );
		});
	},

	isOpen: function() {
		return this._isOpen;
	},

	moveToTop: function() {
		this._moveToTop();
	},

	_moveToTop: function( event, silent ) {
		var moved = !!this.uiDialog.nextAll(":visible").insertBefore( this.uiDialog ).length;
		if ( moved && !silent ) {
			this._trigger( "focus", event );
		}
		return moved;
	},

	open: function() {
		var that = this;
		if ( this._isOpen ) {
			if ( this._moveToTop() ) {
				this._focusTabbable();
			}
			return;
		}

		this._isOpen = true;
		this.opener = $( this.document[0].activeElement );

		this._size();
		this._position();
		this._createOverlay();
		this._moveToTop( null, true );
		this._show( this.uiDialog, this.options.show, function() {
			that._focusTabbable();
			that._trigger("focus");
		});

		this._trigger("open");
	},

	_focusTabbable: function() {
		// Set focus to the first match:
		// 1. First element inside the dialog matching [autofocus]
		// 2. Tabbable element inside the content element
		// 3. Tabbable element inside the buttonpane
		// 4. The close button
		// 5. The dialog itself
		var hasFocus = this.element.find("[autofocus]");
		if ( !hasFocus.length ) {
			hasFocus = this.element.find(":tabbable");
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialogButtonPane.find(":tabbable");
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialogTitlebarClose.filter(":tabbable");
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialog;
		}
		hasFocus.eq( 0 ).focus();
	},

	_keepFocus: function( event ) {
		function checkFocus() {
			var activeElement = this.document[0].activeElement,
				isActive = this.uiDialog[0] === activeElement ||
					$.contains( this.uiDialog[0], activeElement );
			if ( !isActive ) {
				this._focusTabbable();
			}
		}
		event.preventDefault();
		checkFocus.call( this );
		// support: IE
		// IE <= 8 doesn't prevent moving focus even with event.preventDefault()
		// so we check again later
		this._delay( checkFocus );
	},

	_createWrapper: function() {
		this.uiDialog = $("<div>")
			.addClass( "ui-dialog ui-widget ui-widget-content ui-corner-all ui-front " +
				this.options.dialogClass )
			.hide()
			.attr({
				// Setting tabIndex makes the div focusable
				tabIndex: -1,
				role: "dialog"
			})
			.appendTo( this._appendTo() );

		this._on( this.uiDialog, {
			keydown: function( event ) {
				if ( this.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
						event.keyCode === $.ui.keyCode.ESCAPE ) {
					event.preventDefault();
					this.close( event );
					return;
				}

				// prevent tabbing out of dialogs
				if ( event.keyCode !== $.ui.keyCode.TAB ) {
					return;
				}
				var tabbables = this.uiDialog.find(":tabbable"),
					first = tabbables.filter(":first"),
					last  = tabbables.filter(":last");

				if ( ( event.target === last[0] || event.target === this.uiDialog[0] ) && !event.shiftKey ) {
					first.focus( 1 );
					event.preventDefault();
				} else if ( ( event.target === first[0] || event.target === this.uiDialog[0] ) && event.shiftKey ) {
					last.focus( 1 );
					event.preventDefault();
				}
			},
			mousedown: function( event ) {
				if ( this._moveToTop( event ) ) {
					this._focusTabbable();
				}
			}
		});

		// We assume that any existing aria-describedby attribute means
		// that the dialog content is marked up properly
		// otherwise we brute force the content as the description
		if ( !this.element.find("[aria-describedby]").length ) {
			this.uiDialog.attr({
				"aria-describedby": this.element.uniqueId().attr("id")
			});
		}
	},

	_createTitlebar: function() {
		var uiDialogTitle;

		this.uiDialogTitlebar = $("<div>")
			.addClass("ui-dialog-titlebar ui-widget-header ui-corner-all ui-helper-clearfix")
			.prependTo( this.uiDialog );
		this._on( this.uiDialogTitlebar, {
			mousedown: function( event ) {
				// Don't prevent click on close button (#8838)
				// Focusing a dialog that is partially scrolled out of view
				// causes the browser to scroll it into view, preventing the click event
				if ( !$( event.target ).closest(".ui-dialog-titlebar-close") ) {
					// Dialog isn't getting focus when dragging (#8063)
					this.uiDialog.focus();
				}
			}
		});

		this.uiDialogTitlebarClose = $("<button></button>")
			.button({
				label: this.options.closeText,
				icons: {
					primary: "ui-icon-closethick"
				},
				text: false
			})
			.addClass("ui-dialog-titlebar-close")
			.appendTo( this.uiDialogTitlebar );
		this._on( this.uiDialogTitlebarClose, {
			click: function( event ) {
				event.preventDefault();
				this.close( event );
			}
		});

		uiDialogTitle = $("<span>")
			.uniqueId()
			.addClass("ui-dialog-title")
			.prependTo( this.uiDialogTitlebar );
		this._title( uiDialogTitle );

		this.uiDialog.attr({
			"aria-labelledby": uiDialogTitle.attr("id")
		});
	},

	_title: function( title ) {
		if ( !this.options.title ) {
			title.html("&#160;");
		}
		title.text( this.options.title );
	},

	_createButtonPane: function() {
		this.uiDialogButtonPane = $("<div>")
			.addClass("ui-dialog-buttonpane ui-widget-content ui-helper-clearfix");

		this.uiButtonSet = $("<div>")
			.addClass("ui-dialog-buttonset")
			.appendTo( this.uiDialogButtonPane );

		this._createButtons();
	},

	_createButtons: function() {
		var that = this,
			buttons = this.options.buttons;

		// if we already have a button pane, remove it
		this.uiDialogButtonPane.remove();
		this.uiButtonSet.empty();

		if ( $.isEmptyObject( buttons ) || ($.isArray( buttons ) && !buttons.length) ) {
			this.uiDialog.removeClass("ui-dialog-buttons");
			return;
		}

		$.each( buttons, function( name, props ) {
			var click, buttonOptions;
			props = $.isFunction( props ) ?
				{ click: props, text: name } :
				props;
			// Default to a non-submitting button
			props = $.extend( { type: "button" }, props );
			// Change the context for the click callback to be the main element
			click = props.click;
			props.click = function() {
				click.apply( that.element[0], arguments );
			};
			buttonOptions = {
				icons: props.icons,
				text: props.showText
			};
			delete props.icons;
			delete props.showText;
			$( "<button></button>", props )
				.button( buttonOptions )
				.appendTo( that.uiButtonSet );
		});
		this.uiDialog.addClass("ui-dialog-buttons");
		this.uiDialogButtonPane.appendTo( this.uiDialog );
	},

	_makeDraggable: function() {
		var that = this,
			options = this.options;

		function filteredUi( ui ) {
			return {
				position: ui.position,
				offset: ui.offset
			};
		}

		this.uiDialog.draggable({
			cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
			handle: ".ui-dialog-titlebar",
			containment: "document",
			start: function( event, ui ) {
				$( this ).addClass("ui-dialog-dragging");
				that._blockFrames();
				that._trigger( "dragStart", event, filteredUi( ui ) );
			},
			drag: function( event, ui ) {
				that._trigger( "drag", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				options.position = [
					ui.position.left - that.document.scrollLeft(),
					ui.position.top - that.document.scrollTop()
				];
				$( this ).removeClass("ui-dialog-dragging");
				that._unblockFrames();
				that._trigger( "dragStop", event, filteredUi( ui ) );
			}
		});
	},

	_makeResizable: function() {
		var that = this,
			options = this.options,
			handles = options.resizable,
			// .ui-resizable has position: relative defined in the stylesheet
			// but dialogs have to use absolute or fixed positioning
			position = this.uiDialog.css("position"),
			resizeHandles = typeof handles === "string" ?
				handles	:
				"n,e,s,w,se,sw,ne,nw";

		function filteredUi( ui ) {
			return {
				originalPosition: ui.originalPosition,
				originalSize: ui.originalSize,
				position: ui.position,
				size: ui.size
			};
		}

		this.uiDialog.resizable({
			cancel: ".ui-dialog-content",
			containment: "document",
			alsoResize: this.element,
			maxWidth: options.maxWidth,
			maxHeight: options.maxHeight,
			minWidth: options.minWidth,
			minHeight: this._minHeight(),
			handles: resizeHandles,
			start: function( event, ui ) {
				$( this ).addClass("ui-dialog-resizing");
				that._blockFrames();
				that._trigger( "resizeStart", event, filteredUi( ui ) );
			},
			resize: function( event, ui ) {
				that._trigger( "resize", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				options.height = $( this ).height();
				options.width = $( this ).width();
				$( this ).removeClass("ui-dialog-resizing");
				that._unblockFrames();
				that._trigger( "resizeStop", event, filteredUi( ui ) );
			}
		})
		.css( "position", position );
	},

	_minHeight: function() {
		var options = this.options;

		return options.height === "auto" ?
			options.minHeight :
			Math.min( options.minHeight, options.height );
	},

	_position: function() {
		// Need to show the dialog to get the actual offset in the position plugin
		var isVisible = this.uiDialog.is(":visible");
		if ( !isVisible ) {
			this.uiDialog.show();
		}
		this.uiDialog.position( this.options.position );
		if ( !isVisible ) {
			this.uiDialog.hide();
		}
	},

	_setOptions: function( options ) {
		var that = this,
			resize = false,
			resizableOptions = {};

		$.each( options, function( key, value ) {
			that._setOption( key, value );

			if ( key in sizeRelatedOptions ) {
				resize = true;
			}
			if ( key in resizableRelatedOptions ) {
				resizableOptions[ key ] = value;
			}
		});

		if ( resize ) {
			this._size();
			this._position();
		}
		if ( this.uiDialog.is(":data(ui-resizable)") ) {
			this.uiDialog.resizable( "option", resizableOptions );
		}
	},

	_setOption: function( key, value ) {
		/*jshint maxcomplexity:15*/
		var isDraggable, isResizable,
			uiDialog = this.uiDialog;

		if ( key === "dialogClass" ) {
			uiDialog
				.removeClass( this.options.dialogClass )
				.addClass( value );
		}

		if ( key === "disabled" ) {
			return;
		}

		this._super( key, value );

		if ( key === "appendTo" ) {
			this.uiDialog.appendTo( this._appendTo() );
		}

		if ( key === "buttons" ) {
			this._createButtons();
		}

		if ( key === "closeText" ) {
			this.uiDialogTitlebarClose.button({
				// Ensure that we always pass a string
				label: "" + value
			});
		}

		if ( key === "draggable" ) {
			isDraggable = uiDialog.is(":data(ui-draggable)");
			if ( isDraggable && !value ) {
				uiDialog.draggable("destroy");
			}

			if ( !isDraggable && value ) {
				this._makeDraggable();
			}
		}

		if ( key === "position" ) {
			this._position();
		}

		if ( key === "resizable" ) {
			// currently resizable, becoming non-resizable
			isResizable = uiDialog.is(":data(ui-resizable)");
			if ( isResizable && !value ) {
				uiDialog.resizable("destroy");
			}

			// currently resizable, changing handles
			if ( isResizable && typeof value === "string" ) {
				uiDialog.resizable( "option", "handles", value );
			}

			// currently non-resizable, becoming resizable
			if ( !isResizable && value !== false ) {
				this._makeResizable();
			}
		}

		if ( key === "title" ) {
			this._title( this.uiDialogTitlebar.find(".ui-dialog-title") );
		}
	},

	_size: function() {
		// If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
		// divs will both have width and height set, so we need to reset them
		var nonContentHeight, minContentHeight, maxContentHeight,
			options = this.options;

		// Reset content sizing
		this.element.show().css({
			width: "auto",
			minHeight: 0,
			maxHeight: "none",
			height: 0
		});

		if ( options.minWidth > options.width ) {
			options.width = options.minWidth;
		}

		// reset wrapper sizing
		// determine the height of all the non-content elements
		nonContentHeight = this.uiDialog.css({
				height: "auto",
				width: options.width
			})
			.outerHeight();
		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
		maxContentHeight = typeof options.maxHeight === "number" ?
			Math.max( 0, options.maxHeight - nonContentHeight ) :
			"none";

		if ( options.height === "auto" ) {
			this.element.css({
				minHeight: minContentHeight,
				maxHeight: maxContentHeight,
				height: "auto"
			});
		} else {
			this.element.height( Math.max( 0, options.height - nonContentHeight ) );
		}

		if (this.uiDialog.is(":data(ui-resizable)") ) {
			this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
		}
	},

	_blockFrames: function() {
		this.iframeBlocks = this.document.find( "iframe" ).map(function() {
			var iframe = $( this );

			return $( "<div>" )
				.css({
					position: "absolute",
					width: iframe.outerWidth(),
					height: iframe.outerHeight()
				})
				.appendTo( iframe.parent() )
				.offset( iframe.offset() )[0];
		});
	},

	_unblockFrames: function() {
		if ( this.iframeBlocks ) {
			this.iframeBlocks.remove();
			delete this.iframeBlocks;
		}
	},

	_allowInteraction: function( event ) {
		if ( $( event.target ).closest(".ui-dialog").length ) {
			return true;
		}

		// TODO: Remove hack when datepicker implements
		// the .ui-front logic (#8989)
		return !!$( event.target ).closest(".ui-datepicker").length;
	},

	_createOverlay: function() {
		if ( !this.options.modal ) {
			return;
		}

		var that = this,
			widgetFullName = this.widgetFullName;
		if ( !$.ui.dialog.overlayInstances ) {
			// Prevent use of anchors and inputs.
			// We use a delay in case the overlay is created from an
			// event that we're going to be cancelling. (#2804)
			this._delay(function() {
				// Handle .dialog().dialog("close") (#4065)
				if ( $.ui.dialog.overlayInstances ) {
					this.document.bind( "focusin.dialog", function( event ) {
						if ( !that._allowInteraction( event ) ) {
							event.preventDefault();
							$(".ui-dialog:visible:last .ui-dialog-content")
								.data( widgetFullName )._focusTabbable();
						}
					});
				}
			});
		}

		this.overlay = $("<div>")
			.addClass("ui-widget-overlay ui-front")
			.appendTo( this._appendTo() );
		this._on( this.overlay, {
			mousedown: "_keepFocus"
		});
		$.ui.dialog.overlayInstances++;
	},

	_destroyOverlay: function() {
		if ( !this.options.modal ) {
			return;
		}

		if ( this.overlay ) {
			$.ui.dialog.overlayInstances--;

			if ( !$.ui.dialog.overlayInstances ) {
				this.document.unbind( "focusin.dialog" );
			}
			this.overlay.remove();
			this.overlay = null;
		}
	}
});

$.ui.dialog.overlayInstances = 0;

// DEPRECATED
if ( $.uiBackCompat !== false ) {
	// position option with array notation
	// just override with old implementation
	$.widget( "ui.dialog", $.ui.dialog, {
		_position: function() {
			var position = this.options.position,
				myAt = [],
				offset = [ 0, 0 ],
				isVisible;

			if ( position ) {
				if ( typeof position === "string" || (typeof position === "object" && "0" in position ) ) {
					myAt = position.split ? position.split(" ") : [ position[0], position[1] ];
					if ( myAt.length === 1 ) {
						myAt[1] = myAt[0];
					}

					$.each( [ "left", "top" ], function( i, offsetPosition ) {
						if ( +myAt[ i ] === myAt[ i ] ) {
							offset[ i ] = myAt[ i ];
							myAt[ i ] = offsetPosition;
						}
					});

					position = {
						my: myAt[0] + (offset[0] < 0 ? offset[0] : "+" + offset[0]) + " " +
							myAt[1] + (offset[1] < 0 ? offset[1] : "+" + offset[1]),
						at: myAt.join(" ")
					};
				}

				position = $.extend( {}, $.ui.dialog.prototype.options.position, position );
			} else {
				position = $.ui.dialog.prototype.options.position;
			}

			// need to show the dialog to get the actual offset in the position plugin
			isVisible = this.uiDialog.is(":visible");
			if ( !isVisible ) {
				this.uiDialog.show();
			}
			this.uiDialog.position( position );
			if ( !isVisible ) {
				this.uiDialog.hide();
			}
		}
	});
}

}( jQuery ) );

(function( $, undefined ) {

var rvertical = /up|down|vertical/,
	rpositivemotion = /up|left|vertical|horizontal/;

$.effects.effect.blind = function( o, done ) {
	// Create element
	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
		mode = $.effects.setMode( el, o.mode || "hide" ),
		direction = o.direction || "up",
		vertical = rvertical.test( direction ),
		ref = vertical ? "height" : "width",
		ref2 = vertical ? "top" : "left",
		motion = rpositivemotion.test( direction ),
		animation = {},
		show = mode === "show",
		wrapper, distance, margin;

	// if already wrapped, the wrapper's properties are my property. #6245
	if ( el.parent().is( ".ui-effects-wrapper" ) ) {
		$.effects.save( el.parent(), props );
	} else {
		$.effects.save( el, props );
	}
	el.show();
	wrapper = $.effects.createWrapper( el ).css({
		overflow: "hidden"
	});

	distance = wrapper[ ref ]();
	margin = parseFloat( wrapper.css( ref2 ) ) || 0;

	animation[ ref ] = show ? distance : 0;
	if ( !motion ) {
		el
			.css( vertical ? "bottom" : "right", 0 )
			.css( vertical ? "top" : "left", "auto" )
			.css({ position: "absolute" });

		animation[ ref2 ] = show ? margin : distance + margin;
	}

	// start at 0 if we are showing
	if ( show ) {
		wrapper.css( ref, 0 );
		if ( ! motion ) {
			wrapper.css( ref2, margin + distance );
		}
	}

	// Animate
	wrapper.animate( animation, {
		duration: o.duration,
		easing: o.easing,
		queue: false,
		complete: function() {
			if ( mode === "hide" ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		}
	});

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.bounce = function( o, done ) {
	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "height", "width" ],

		// defaults:
		mode = $.effects.setMode( el, o.mode || "effect" ),
		hide = mode === "hide",
		show = mode === "show",
		direction = o.direction || "up",
		distance = o.distance,
		times = o.times || 5,

		// number of internal animations
		anims = times * 2 + ( show || hide ? 1 : 0 ),
		speed = o.duration / anims,
		easing = o.easing,

		// utility:
		ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
		motion = ( direction === "up" || direction === "left" ),
		i,
		upAnim,
		downAnim,

		// we will need to re-assemble the queue to stack our animations in place
		queue = el.queue(),
		queuelen = queue.length;

	// Avoid touching opacity to prevent clearType and PNG issues in IE
	if ( show || hide ) {
		props.push( "opacity" );
	}

	$.effects.save( el, props );
	el.show();
	$.effects.createWrapper( el ); // Create Wrapper

	// default distance for the BIGGEST bounce is the outer Distance / 3
	if ( !distance ) {
		distance = el[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
	}

	if ( show ) {
		downAnim = { opacity: 1 };
		downAnim[ ref ] = 0;

		// if we are showing, force opacity 0 and set the initial position
		// then do the "first" animation
		el.css( "opacity", 0 )
			.css( ref, motion ? -distance * 2 : distance * 2 )
			.animate( downAnim, speed, easing );
	}

	// start at the smallest distance if we are hiding
	if ( hide ) {
		distance = distance / Math.pow( 2, times - 1 );
	}

	downAnim = {};
	downAnim[ ref ] = 0;
	// Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
	for ( i = 0; i < times; i++ ) {
		upAnim = {};
		upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

		el.animate( upAnim, speed, easing )
			.animate( downAnim, speed, easing );

		distance = hide ? distance * 2 : distance / 2;
	}

	// Last Bounce when Hiding
	if ( hide ) {
		upAnim = { opacity: 0 };
		upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

		el.animate( upAnim, speed, easing );
	}

	el.queue(function() {
		if ( hide ) {
			el.hide();
		}
		$.effects.restore( el, props );
		$.effects.removeWrapper( el );
		done();
	});

	// inject all the animations we just queued to be first in line (after "inprogress")
	if ( queuelen > 1) {
		queue.splice.apply( queue,
			[ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
	}
	el.dequeue();

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.clip = function( o, done ) {
	// Create element
	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
		mode = $.effects.setMode( el, o.mode || "hide" ),
		show = mode === "show",
		direction = o.direction || "vertical",
		vert = direction === "vertical",
		size = vert ? "height" : "width",
		position = vert ? "top" : "left",
		animation = {},
		wrapper, animate, distance;

	// Save & Show
	$.effects.save( el, props );
	el.show();

	// Create Wrapper
	wrapper = $.effects.createWrapper( el ).css({
		overflow: "hidden"
	});
	animate = ( el[0].tagName === "IMG" ) ? wrapper : el;
	distance = animate[ size ]();

	// Shift
	if ( show ) {
		animate.css( size, 0 );
		animate.css( position, distance / 2 );
	}

	// Create Animation Object:
	animation[ size ] = show ? distance : 0;
	animation[ position ] = show ? 0 : distance / 2;

	// Animate
	animate.animate( animation, {
		queue: false,
		duration: o.duration,
		easing: o.easing,
		complete: function() {
			if ( !show ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		}
	});

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.drop = function( o, done ) {

	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "opacity", "height", "width" ],
		mode = $.effects.setMode( el, o.mode || "hide" ),
		show = mode === "show",
		direction = o.direction || "left",
		ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
		motion = ( direction === "up" || direction === "left" ) ? "pos" : "neg",
		animation = {
			opacity: show ? 1 : 0
		},
		distance;

	// Adjust
	$.effects.save( el, props );
	el.show();
	$.effects.createWrapper( el );

	distance = o.distance || el[ ref === "top" ? "outerHeight": "outerWidth" ]( true ) / 2;

	if ( show ) {
		el
			.css( "opacity", 0 )
			.css( ref, motion === "pos" ? -distance : distance );
	}

	// Animation
	animation[ ref ] = ( show ?
		( motion === "pos" ? "+=" : "-=" ) :
		( motion === "pos" ? "-=" : "+=" ) ) +
		distance;

	// Animate
	el.animate( animation, {
		queue: false,
		duration: o.duration,
		easing: o.easing,
		complete: function() {
			if ( mode === "hide" ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		}
	});
};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.explode = function( o, done ) {

	var rows = o.pieces ? Math.round( Math.sqrt( o.pieces ) ) : 3,
		cells = rows,
		el = $( this ),
		mode = $.effects.setMode( el, o.mode || "hide" ),
		show = mode === "show",

		// show and then visibility:hidden the element before calculating offset
		offset = el.show().css( "visibility", "hidden" ).offset(),

		// width and height of a piece
		width = Math.ceil( el.outerWidth() / cells ),
		height = Math.ceil( el.outerHeight() / rows ),
		pieces = [],

		// loop
		i, j, left, top, mx, my;

	// children animate complete:
	function childComplete() {
		pieces.push( this );
		if ( pieces.length === rows * cells ) {
			animComplete();
		}
	}

	// clone the element for each row and cell.
	for( i = 0; i < rows ; i++ ) { // ===>
		top = offset.top + i * height;
		my = i - ( rows - 1 ) / 2 ;

		for( j = 0; j < cells ; j++ ) { // |||
			left = offset.left + j * width;
			mx = j - ( cells - 1 ) / 2 ;

			// Create a clone of the now hidden main element that will be absolute positioned
			// within a wrapper div off the -left and -top equal to size of our pieces
			el
				.clone()
				.appendTo( "body" )
				.wrap( "<div></div>" )
				.css({
					position: "absolute",
					visibility: "visible",
					left: -j * width,
					top: -i * height
				})

			// select the wrapper - make it overflow: hidden and absolute positioned based on
			// where the original was located +left and +top equal to the size of pieces
				.parent()
				.addClass( "ui-effects-explode" )
				.css({
					position: "absolute",
					overflow: "hidden",
					width: width,
					height: height,
					left: left + ( show ? mx * width : 0 ),
					top: top + ( show ? my * height : 0 ),
					opacity: show ? 0 : 1
				}).animate({
					left: left + ( show ? 0 : mx * width ),
					top: top + ( show ? 0 : my * height ),
					opacity: show ? 1 : 0
				}, o.duration || 500, o.easing, childComplete );
		}
	}

	function animComplete() {
		el.css({
			visibility: "visible"
		});
		$( pieces ).remove();
		if ( !show ) {
			el.hide();
		}
		done();
	}
};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.fade = function( o, done ) {
	var el = $( this ),
		mode = $.effects.setMode( el, o.mode || "toggle" );

	el.animate({
		opacity: mode
	}, {
		queue: false,
		duration: o.duration,
		easing: o.easing,
		complete: done
	});
};

})( jQuery );

(function( $, undefined ) {

$.effects.effect.fold = function( o, done ) {

	// Create element
	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
		mode = $.effects.setMode( el, o.mode || "hide" ),
		show = mode === "show",
		hide = mode === "hide",
		size = o.size || 15,
		percent = /([0-9]+)%/.exec( size ),
		horizFirst = !!o.horizFirst,
		widthFirst = show !== horizFirst,
		ref = widthFirst ? [ "width", "height" ] : [ "height", "width" ],
		duration = o.duration / 2,
		wrapper, distance,
		animation1 = {},
		animation2 = {};

	$.effects.save( el, props );
	el.show();

	// Create Wrapper
	wrapper = $.effects.createWrapper( el ).css({
		overflow: "hidden"
	});
	distance = widthFirst ?
		[ wrapper.width(), wrapper.height() ] :
		[ wrapper.height(), wrapper.width() ];

	if ( percent ) {
		size = parseInt( percent[ 1 ], 10 ) / 100 * distance[ hide ? 0 : 1 ];
	}
	if ( show ) {
		wrapper.css( horizFirst ? {
			height: 0,
			width: size
		} : {
			height: size,
			width: 0
		});
	}

	// Animation
	animation1[ ref[ 0 ] ] = show ? distance[ 0 ] : size;
	animation2[ ref[ 1 ] ] = show ? distance[ 1 ] : 0;

	// Animate
	wrapper
		.animate( animation1, duration, o.easing )
		.animate( animation2, duration, o.easing, function() {
			if ( hide ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		});

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.highlight = function( o, done ) {
	var elem = $( this ),
		props = [ "backgroundImage", "backgroundColor", "opacity" ],
		mode = $.effects.setMode( elem, o.mode || "show" ),
		animation = {
			backgroundColor: elem.css( "backgroundColor" )
		};

	if (mode === "hide") {
		animation.opacity = 0;
	}

	$.effects.save( elem, props );

	elem
		.show()
		.css({
			backgroundImage: "none",
			backgroundColor: o.color || "#ffff99"
		})
		.animate( animation, {
			queue: false,
			duration: o.duration,
			easing: o.easing,
			complete: function() {
				if ( mode === "hide" ) {
					elem.hide();
				}
				$.effects.restore( elem, props );
				done();
			}
		});
};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.pulsate = function( o, done ) {
	var elem = $( this ),
		mode = $.effects.setMode( elem, o.mode || "show" ),
		show = mode === "show",
		hide = mode === "hide",
		showhide = ( show || mode === "hide" ),

		// showing or hiding leaves of the "last" animation
		anims = ( ( o.times || 5 ) * 2 ) + ( showhide ? 1 : 0 ),
		duration = o.duration / anims,
		animateTo = 0,
		queue = elem.queue(),
		queuelen = queue.length,
		i;

	if ( show || !elem.is(":visible")) {
		elem.css( "opacity", 0 ).show();
		animateTo = 1;
	}

	// anims - 1 opacity "toggles"
	for ( i = 1; i < anims; i++ ) {
		elem.animate({
			opacity: animateTo
		}, duration, o.easing );
		animateTo = 1 - animateTo;
	}

	elem.animate({
		opacity: animateTo
	}, duration, o.easing);

	elem.queue(function() {
		if ( hide ) {
			elem.hide();
		}
		done();
	});

	// We just queued up "anims" animations, we need to put them next in the queue
	if ( queuelen > 1 ) {
		queue.splice.apply( queue,
			[ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
	}
	elem.dequeue();
};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.puff = function( o, done ) {
	var elem = $( this ),
		mode = $.effects.setMode( elem, o.mode || "hide" ),
		hide = mode === "hide",
		percent = parseInt( o.percent, 10 ) || 150,
		factor = percent / 100,
		original = {
			height: elem.height(),
			width: elem.width(),
			outerHeight: elem.outerHeight(),
			outerWidth: elem.outerWidth()
		};

	$.extend( o, {
		effect: "scale",
		queue: false,
		fade: true,
		mode: mode,
		complete: done,
		percent: hide ? percent : 100,
		from: hide ?
			original :
			{
				height: original.height * factor,
				width: original.width * factor,
				outerHeight: original.outerHeight * factor,
				outerWidth: original.outerWidth * factor
			}
	});

	elem.effect( o );
};

$.effects.effect.scale = function( o, done ) {

	// Create element
	var el = $( this ),
		options = $.extend( true, {}, o ),
		mode = $.effects.setMode( el, o.mode || "effect" ),
		percent = parseInt( o.percent, 10 ) ||
			( parseInt( o.percent, 10 ) === 0 ? 0 : ( mode === "hide" ? 0 : 100 ) ),
		direction = o.direction || "both",
		origin = o.origin,
		original = {
			height: el.height(),
			width: el.width(),
			outerHeight: el.outerHeight(),
			outerWidth: el.outerWidth()
		},
		factor = {
			y: direction !== "horizontal" ? (percent / 100) : 1,
			x: direction !== "vertical" ? (percent / 100) : 1
		};

	// We are going to pass this effect to the size effect:
	options.effect = "size";
	options.queue = false;
	options.complete = done;

	// Set default origin and restore for show/hide
	if ( mode !== "effect" ) {
		options.origin = origin || ["middle","center"];
		options.restore = true;
	}

	options.from = o.from || ( mode === "show" ? {
		height: 0,
		width: 0,
		outerHeight: 0,
		outerWidth: 0
	} : original );
	options.to = {
		height: original.height * factor.y,
		width: original.width * factor.x,
		outerHeight: original.outerHeight * factor.y,
		outerWidth: original.outerWidth * factor.x
	};

	// Fade option to support puff
	if ( options.fade ) {
		if ( mode === "show" ) {
			options.from.opacity = 0;
			options.to.opacity = 1;
		}
		if ( mode === "hide" ) {
			options.from.opacity = 1;
			options.to.opacity = 0;
		}
	}

	// Animate
	el.effect( options );

};

$.effects.effect.size = function( o, done ) {

	// Create element
	var original, baseline, factor,
		el = $( this ),
		props0 = [ "position", "top", "bottom", "left", "right", "width", "height", "overflow", "opacity" ],

		// Always restore
		props1 = [ "position", "top", "bottom", "left", "right", "overflow", "opacity" ],

		// Copy for children
		props2 = [ "width", "height", "overflow" ],
		cProps = [ "fontSize" ],
		vProps = [ "borderTopWidth", "borderBottomWidth", "paddingTop", "paddingBottom" ],
		hProps = [ "borderLeftWidth", "borderRightWidth", "paddingLeft", "paddingRight" ],

		// Set options
		mode = $.effects.setMode( el, o.mode || "effect" ),
		restore = o.restore || mode !== "effect",
		scale = o.scale || "both",
		origin = o.origin || [ "middle", "center" ],
		position = el.css( "position" ),
		props = restore ? props0 : props1,
		zero = {
			height: 0,
			width: 0,
			outerHeight: 0,
			outerWidth: 0
		};

	if ( mode === "show" ) {
		el.show();
	}
	original = {
		height: el.height(),
		width: el.width(),
		outerHeight: el.outerHeight(),
		outerWidth: el.outerWidth()
	};

	if ( o.mode === "toggle" && mode === "show" ) {
		el.from = o.to || zero;
		el.to = o.from || original;
	} else {
		el.from = o.from || ( mode === "show" ? zero : original );
		el.to = o.to || ( mode === "hide" ? zero : original );
	}

	// Set scaling factor
	factor = {
		from: {
			y: el.from.height / original.height,
			x: el.from.width / original.width
		},
		to: {
			y: el.to.height / original.height,
			x: el.to.width / original.width
		}
	};

	// Scale the css box
	if ( scale === "box" || scale === "both" ) {

		// Vertical props scaling
		if ( factor.from.y !== factor.to.y ) {
			props = props.concat( vProps );
			el.from = $.effects.setTransition( el, vProps, factor.from.y, el.from );
			el.to = $.effects.setTransition( el, vProps, factor.to.y, el.to );
		}

		// Horizontal props scaling
		if ( factor.from.x !== factor.to.x ) {
			props = props.concat( hProps );
			el.from = $.effects.setTransition( el, hProps, factor.from.x, el.from );
			el.to = $.effects.setTransition( el, hProps, factor.to.x, el.to );
		}
	}

	// Scale the content
	if ( scale === "content" || scale === "both" ) {

		// Vertical props scaling
		if ( factor.from.y !== factor.to.y ) {
			props = props.concat( cProps ).concat( props2 );
			el.from = $.effects.setTransition( el, cProps, factor.from.y, el.from );
			el.to = $.effects.setTransition( el, cProps, factor.to.y, el.to );
		}
	}

	$.effects.save( el, props );
	el.show();
	$.effects.createWrapper( el );
	el.css( "overflow", "hidden" ).css( el.from );

	// Adjust
	if (origin) { // Calculate baseline shifts
		baseline = $.effects.getBaseline( origin, original );
		el.from.top = ( original.outerHeight - el.outerHeight() ) * baseline.y;
		el.from.left = ( original.outerWidth - el.outerWidth() ) * baseline.x;
		el.to.top = ( original.outerHeight - el.to.outerHeight ) * baseline.y;
		el.to.left = ( original.outerWidth - el.to.outerWidth ) * baseline.x;
	}
	el.css( el.from ); // set top & left

	// Animate
	if ( scale === "content" || scale === "both" ) { // Scale the children

		// Add margins/font-size
		vProps = vProps.concat([ "marginTop", "marginBottom" ]).concat(cProps);
		hProps = hProps.concat([ "marginLeft", "marginRight" ]);
		props2 = props0.concat(vProps).concat(hProps);

		el.find( "*[width]" ).each( function(){
			var child = $( this ),
				c_original = {
					height: child.height(),
					width: child.width(),
					outerHeight: child.outerHeight(),
					outerWidth: child.outerWidth()
				};
			if (restore) {
				$.effects.save(child, props2);
			}

			child.from = {
				height: c_original.height * factor.from.y,
				width: c_original.width * factor.from.x,
				outerHeight: c_original.outerHeight * factor.from.y,
				outerWidth: c_original.outerWidth * factor.from.x
			};
			child.to = {
				height: c_original.height * factor.to.y,
				width: c_original.width * factor.to.x,
				outerHeight: c_original.height * factor.to.y,
				outerWidth: c_original.width * factor.to.x
			};

			// Vertical props scaling
			if ( factor.from.y !== factor.to.y ) {
				child.from = $.effects.setTransition( child, vProps, factor.from.y, child.from );
				child.to = $.effects.setTransition( child, vProps, factor.to.y, child.to );
			}

			// Horizontal props scaling
			if ( factor.from.x !== factor.to.x ) {
				child.from = $.effects.setTransition( child, hProps, factor.from.x, child.from );
				child.to = $.effects.setTransition( child, hProps, factor.to.x, child.to );
			}

			// Animate children
			child.css( child.from );
			child.animate( child.to, o.duration, o.easing, function() {

				// Restore children
				if ( restore ) {
					$.effects.restore( child, props2 );
				}
			});
		});
	}

	// Animate
	el.animate( el.to, {
		queue: false,
		duration: o.duration,
		easing: o.easing,
		complete: function() {
			if ( el.to.opacity === 0 ) {
				el.css( "opacity", el.from.opacity );
			}
			if( mode === "hide" ) {
				el.hide();
			}
			$.effects.restore( el, props );
			if ( !restore ) {

				// we need to calculate our new positioning based on the scaling
				if ( position === "static" ) {
					el.css({
						position: "relative",
						top: el.to.top,
						left: el.to.left
					});
				} else {
					$.each([ "top", "left" ], function( idx, pos ) {
						el.css( pos, function( _, str ) {
							var val = parseInt( str, 10 ),
								toRef = idx ? el.to.left : el.to.top;

							// if original was "auto", recalculate the new value from wrapper
							if ( str === "auto" ) {
								return toRef + "px";
							}

							return val + toRef + "px";
						});
					});
				}
			}

			$.effects.removeWrapper( el );
			done();
		}
	});

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.shake = function( o, done ) {

	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
		mode = $.effects.setMode( el, o.mode || "effect" ),
		direction = o.direction || "left",
		distance = o.distance || 20,
		times = o.times || 3,
		anims = times * 2 + 1,
		speed = Math.round(o.duration/anims),
		ref = (direction === "up" || direction === "down") ? "top" : "left",
		positiveMotion = (direction === "up" || direction === "left"),
		animation = {},
		animation1 = {},
		animation2 = {},
		i,

		// we will need to re-assemble the queue to stack our animations in place
		queue = el.queue(),
		queuelen = queue.length;

	$.effects.save( el, props );
	el.show();
	$.effects.createWrapper( el );

	// Animation
	animation[ ref ] = ( positiveMotion ? "-=" : "+=" ) + distance;
	animation1[ ref ] = ( positiveMotion ? "+=" : "-=" ) + distance * 2;
	animation2[ ref ] = ( positiveMotion ? "-=" : "+=" ) + distance * 2;

	// Animate
	el.animate( animation, speed, o.easing );

	// Shakes
	for ( i = 1; i < times; i++ ) {
		el.animate( animation1, speed, o.easing ).animate( animation2, speed, o.easing );
	}
	el
		.animate( animation1, speed, o.easing )
		.animate( animation, speed / 2, o.easing )
		.queue(function() {
			if ( mode === "hide" ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		});

	// inject all the animations we just queued to be first in line (after "inprogress")
	if ( queuelen > 1) {
		queue.splice.apply( queue,
			[ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
	}
	el.dequeue();

};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.slide = function( o, done ) {

	// Create element
	var el = $( this ),
		props = [ "position", "top", "bottom", "left", "right", "width", "height" ],
		mode = $.effects.setMode( el, o.mode || "show" ),
		show = mode === "show",
		direction = o.direction || "left",
		ref = (direction === "up" || direction === "down") ? "top" : "left",
		positiveMotion = (direction === "up" || direction === "left"),
		distance,
		animation = {};

	// Adjust
	$.effects.save( el, props );
	el.show();
	distance = o.distance || el[ ref === "top" ? "outerHeight" : "outerWidth" ]( true );

	$.effects.createWrapper( el ).css({
		overflow: "hidden"
	});

	if ( show ) {
		el.css( ref, positiveMotion ? (isNaN(distance) ? "-" + distance : -distance) : distance );
	}

	// Animation
	animation[ ref ] = ( show ?
		( positiveMotion ? "+=" : "-=") :
		( positiveMotion ? "-=" : "+=")) +
		distance;

	// Animate
	el.animate( animation, {
		queue: false,
		duration: o.duration,
		easing: o.easing,
		complete: function() {
			if ( mode === "hide" ) {
				el.hide();
			}
			$.effects.restore( el, props );
			$.effects.removeWrapper( el );
			done();
		}
	});
};

})(jQuery);

(function( $, undefined ) {

$.effects.effect.transfer = function( o, done ) {
	var elem = $( this ),
		target = $( o.to ),
		targetFixed = target.css( "position" ) === "fixed",
		body = $("body"),
		fixTop = targetFixed ? body.scrollTop() : 0,
		fixLeft = targetFixed ? body.scrollLeft() : 0,
		endPosition = target.offset(),
		animation = {
			top: endPosition.top - fixTop ,
			left: endPosition.left - fixLeft ,
			height: target.innerHeight(),
			width: target.innerWidth()
		},
		startPosition = elem.offset(),
		transfer = $( "<div class='ui-effects-transfer'></div>" )
			.appendTo( document.body )
			.addClass( o.className )
			.css({
				top: startPosition.top - fixTop ,
				left: startPosition.left - fixLeft ,
				height: elem.innerHeight(),
				width: elem.innerWidth(),
				position: targetFixed ? "fixed" : "absolute"
			})
			.animate( animation, o.duration, o.easing, function() {
				transfer.remove();
				done();
			});
};

})(jQuery);

(function( $, undefined ) {

$.widget( "ui.menu", {
	version: "1.10.3",
	defaultElement: "<ul>",
	delay: 300,
	options: {
		icons: {
			submenu: "ui-icon-carat-1-e"
		},
		menus: "ul",
		position: {
			my: "left top",
			at: "right top"
		},
		role: "menu",

		// callbacks
		blur: null,
		focus: null,
		select: null
	},

	_create: function() {
		this.activeMenu = this.element;
		// flag used to prevent firing of the click handler
		// as the event bubbles up through nested menus
		this.mouseHandled = false;
		this.element
			.uniqueId()
			.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
			.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
			.attr({
				role: this.options.role,
				tabIndex: 0
			})
			// need to catch all clicks on disabled menu
			// not possible through _on
			.bind( "click" + this.eventNamespace, $.proxy(function( event ) {
				if ( this.options.disabled ) {
					event.preventDefault();
				}
			}, this ));

		if ( this.options.disabled ) {
			this.element
				.addClass( "ui-state-disabled" )
				.attr( "aria-disabled", "true" );
		}

		this._on({
			// Prevent focus from sticking to links inside menu after clicking
			// them (focus should always stay on UL during navigation).
			"mousedown .ui-menu-item > a": function( event ) {
				event.preventDefault();
			},
			"click .ui-state-disabled > a": function( event ) {
				event.preventDefault();
			},
			"click .ui-menu-item:has(a)": function( event ) {
				var target = $( event.target ).closest( ".ui-menu-item" );
				if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
					this.mouseHandled = true;

					this.select( event );
					// Open submenu on click
					if ( target.has( ".ui-menu" ).length ) {
						this.expand( event );
					} else if ( !this.element.is( ":focus" ) ) {
						// Redirect focus to the menu
						this.element.trigger( "focus", [ true ] );

						// If the active item is on the top level, let it stay active.
						// Otherwise, blur the active item since it is no longer visible.
						if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
							clearTimeout( this.timer );
						}
					}
				}
			},
			"mouseenter .ui-menu-item": function( event ) {
				var target = $( event.currentTarget );
				// Remove ui-state-active class from siblings of the newly focused menu item
				// to avoid a jump caused by adjacent elements both having a class with a border
				target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
				this.focus( event, target );
			},
			mouseleave: "collapseAll",
			"mouseleave .ui-menu": "collapseAll",
			focus: function( event, keepActiveItem ) {
				// If there's already an active item, keep it active
				// If not, activate the first item
				var item = this.active || this.element.children( ".ui-menu-item" ).eq( 0 );

				if ( !keepActiveItem ) {
					this.focus( event, item );
				}
			},
			blur: function( event ) {
				this._delay(function() {
					if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
						this.collapseAll( event );
					}
				});
			},
			keydown: "_keydown"
		});

		this.refresh();

		// Clicks outside of a menu collapse any open menus
		this._on( this.document, {
			click: function( event ) {
				if ( !$( event.target ).closest( ".ui-menu" ).length ) {
					this.collapseAll( event );
				}

				// Reset the mouseHandled flag
				this.mouseHandled = false;
			}
		});
	},

	_destroy: function() {
		// Destroy (sub)menus
		this.element
			.removeAttr( "aria-activedescendant" )
			.find( ".ui-menu" ).addBack()
				.removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons" )
				.removeAttr( "role" )
				.removeAttr( "tabIndex" )
				.removeAttr( "aria-labelledby" )
				.removeAttr( "aria-expanded" )
				.removeAttr( "aria-hidden" )
				.removeAttr( "aria-disabled" )
				.removeUniqueId()
				.show();

		// Destroy menu items
		this.element.find( ".ui-menu-item" )
			.removeClass( "ui-menu-item" )
			.removeAttr( "role" )
			.removeAttr( "aria-disabled" )
			.children( "a" )
				.removeUniqueId()
				.removeClass( "ui-corner-all ui-state-hover" )
				.removeAttr( "tabIndex" )
				.removeAttr( "role" )
				.removeAttr( "aria-haspopup" )
				.children().each( function() {
					var elem = $( this );
					if ( elem.data( "ui-menu-submenu-carat" ) ) {
						elem.remove();
					}
				});

		// Destroy menu dividers
		this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
	},

	_keydown: function( event ) {
		/*jshint maxcomplexity:20*/
		var match, prev, character, skip, regex,
			preventDefault = true;

		function escape( value ) {
			return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
		}

		switch ( event.keyCode ) {
		case $.ui.keyCode.PAGE_UP:
			this.previousPage( event );
			break;
		case $.ui.keyCode.PAGE_DOWN:
			this.nextPage( event );
			break;
		case $.ui.keyCode.HOME:
			this._move( "first", "first", event );
			break;
		case $.ui.keyCode.END:
			this._move( "last", "last", event );
			break;
		case $.ui.keyCode.UP:
			this.previous( event );
			break;
		case $.ui.keyCode.DOWN:
			this.next( event );
			break;
		case $.ui.keyCode.LEFT:
			this.collapse( event );
			break;
		case $.ui.keyCode.RIGHT:
			if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
				this.expand( event );
			}
			break;
		case $.ui.keyCode.ENTER:
		case $.ui.keyCode.SPACE:
			this._activate( event );
			break;
		case $.ui.keyCode.ESCAPE:
			this.collapse( event );
			break;
		default:
			preventDefault = false;
			prev = this.previousFilter || "";
			character = String.fromCharCode( event.keyCode );
			skip = false;

			clearTimeout( this.filterTimer );

			if ( character === prev ) {
				skip = true;
			} else {
				character = prev + character;
			}

			regex = new RegExp( "^" + escape( character ), "i" );
			match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
				return regex.test( $( this ).children( "a" ).text() );
			});
			match = skip && match.index( this.active.next() ) !== -1 ?
				this.active.nextAll( ".ui-menu-item" ) :
				match;

			// If no matches on the current filter, reset to the last character pressed
			// to move down the menu to the first item that starts with that character
			if ( !match.length ) {
				character = String.fromCharCode( event.keyCode );
				regex = new RegExp( "^" + escape( character ), "i" );
				match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
					return regex.test( $( this ).children( "a" ).text() );
				});
			}

			if ( match.length ) {
				this.focus( event, match );
				if ( match.length > 1 ) {
					this.previousFilter = character;
					this.filterTimer = this._delay(function() {
						delete this.previousFilter;
					}, 1000 );
				} else {
					delete this.previousFilter;
				}
			} else {
				delete this.previousFilter;
			}
		}

		if ( preventDefault ) {
			event.preventDefault();
		}
	},

	_activate: function( event ) {
		if ( !this.active.is( ".ui-state-disabled" ) ) {
			if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
				this.expand( event );
			} else {
				this.select( event );
			}
		}
	},

	refresh: function() {
		var menus,
			icon = this.options.icons.submenu,
			submenus = this.element.find( this.options.menus );

		// Initialize nested menus
		submenus.filter( ":not(.ui-menu)" )
			.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
			.hide()
			.attr({
				role: this.options.role,
				"aria-hidden": "true",
				"aria-expanded": "false"
			})
			.each(function() {
				var menu = $( this ),
					item = menu.prev( "a" ),
					submenuCarat = $( "<span>" )
						.addClass( "ui-menu-icon ui-icon " + icon )
						.data( "ui-menu-submenu-carat", true );

				item
					.attr( "aria-haspopup", "true" )
					.prepend( submenuCarat );
				menu.attr( "aria-labelledby", item.attr( "id" ) );
			});

		menus = submenus.add( this.element );

		// Don't refresh list items that are already adapted
		menus.children( ":not(.ui-menu-item):has(a)" )
			.addClass( "ui-menu-item" )
			.attr( "role", "presentation" )
			.children( "a" )
				.uniqueId()
				.addClass( "ui-corner-all" )
				.attr({
					tabIndex: -1,
					role: this._itemRole()
				});

		// Initialize unlinked menu-items containing spaces and/or dashes only as dividers
		menus.children( ":not(.ui-menu-item)" ).each(function() {
			var item = $( this );
			// hyphen, em dash, en dash
			if ( !/[^\-\u2014\u2013\s]/.test( item.text() ) ) {
				item.addClass( "ui-widget-content ui-menu-divider" );
			}
		});

		// Add aria-disabled attribute to any disabled menu item
		menus.children( ".ui-state-disabled" ).attr( "aria-disabled", "true" );

		// If the active item has been removed, blur the menu
		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
			this.blur();
		}
	},

	_itemRole: function() {
		return {
			menu: "menuitem",
			listbox: "option"
		}[ this.options.role ];
	},

	_setOption: function( key, value ) {
		if ( key === "icons" ) {
			this.element.find( ".ui-menu-icon" )
				.removeClass( this.options.icons.submenu )
				.addClass( value.submenu );
		}
		this._super( key, value );
	},

	focus: function( event, item ) {
		var nested, focused;
		this.blur( event, event && event.type === "focus" );

		this._scrollIntoView( item );

		this.active = item.first();
		focused = this.active.children( "a" ).addClass( "ui-state-focus" );
		// Only update aria-activedescendant if there's a role
		// otherwise we assume focus is managed elsewhere
		if ( this.options.role ) {
			this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
		}

		// Highlight active parent menu item, if any
		this.active
			.parent()
			.closest( ".ui-menu-item" )
			.children( "a:first" )
			.addClass( "ui-state-active" );

		if ( event && event.type === "keydown" ) {
			this._close();
		} else {
			this.timer = this._delay(function() {
				this._close();
			}, this.delay );
		}

		nested = item.children( ".ui-menu" );
		if ( nested.length && ( /^mouse/.test( event.type ) ) ) {
			this._startOpening(nested);
		}
		this.activeMenu = item.parent();

		this._trigger( "focus", event, { item: item } );
	},

	_scrollIntoView: function( item ) {
		var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
		if ( this._hasScroll() ) {
			borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
			paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
			offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
			scroll = this.activeMenu.scrollTop();
			elementHeight = this.activeMenu.height();
			itemHeight = item.height();

			if ( offset < 0 ) {
				this.activeMenu.scrollTop( scroll + offset );
			} else if ( offset + itemHeight > elementHeight ) {
				this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
			}
		}
	},

	blur: function( event, fromFocus ) {
		if ( !fromFocus ) {
			clearTimeout( this.timer );
		}

		if ( !this.active ) {
			return;
		}

		this.active.children( "a" ).removeClass( "ui-state-focus" );
		this.active = null;

		this._trigger( "blur", event, { item: this.active } );
	},

	_startOpening: function( submenu ) {
		clearTimeout( this.timer );

		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
		// shift in the submenu position when mousing over the carat icon
		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
			return;
		}

		this.timer = this._delay(function() {
			this._close();
			this._open( submenu );
		}, this.delay );
	},

	_open: function( submenu ) {
		var position = $.extend({
			of: this.active
		}, this.options.position );

		clearTimeout( this.timer );
		this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
			.hide()
			.attr( "aria-hidden", "true" );

		submenu
			.show()
			.removeAttr( "aria-hidden" )
			.attr( "aria-expanded", "true" )
			.position( position );
	},

	collapseAll: function( event, all ) {
		clearTimeout( this.timer );
		this.timer = this._delay(function() {
			// If we were passed an event, look for the submenu that contains the event
			var currentMenu = all ? this.element :
				$( event && event.target ).closest( this.element.find( ".ui-menu" ) );

			// If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
			if ( !currentMenu.length ) {
				currentMenu = this.element;
			}

			this._close( currentMenu );

			this.blur( event );
			this.activeMenu = currentMenu;
		}, this.delay );
	},

	// With no arguments, closes the currently active menu - if nothing is active
	// it closes all menus.  If passed an argument, it will search for menus BELOW
	_close: function( startMenu ) {
		if ( !startMenu ) {
			startMenu = this.active ? this.active.parent() : this.element;
		}

		startMenu
			.find( ".ui-menu" )
				.hide()
				.attr( "aria-hidden", "true" )
				.attr( "aria-expanded", "false" )
			.end()
			.find( "a.ui-state-active" )
				.removeClass( "ui-state-active" );
	},

	collapse: function( event ) {
		var newItem = this.active &&
			this.active.parent().closest( ".ui-menu-item", this.element );
		if ( newItem && newItem.length ) {
			this._close();
			this.focus( event, newItem );
		}
	},

	expand: function( event ) {
		var newItem = this.active &&
			this.active
				.children( ".ui-menu " )
				.children( ".ui-menu-item" )
				.first();

		if ( newItem && newItem.length ) {
			this._open( newItem.parent() );

			// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
			this._delay(function() {
				this.focus( event, newItem );
			});
		}
	},

	next: function( event ) {
		this._move( "next", "first", event );
	},

	previous: function( event ) {
		this._move( "prev", "last", event );
	},

	isFirstItem: function() {
		return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
	},

	isLastItem: function() {
		return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
	},

	_move: function( direction, filter, event ) {
		var next;
		if ( this.active ) {
			if ( direction === "first" || direction === "last" ) {
				next = this.active
					[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
					.eq( -1 );
			} else {
				next = this.active
					[ direction + "All" ]( ".ui-menu-item" )
					.eq( 0 );
			}
		}
		if ( !next || !next.length || !this.active ) {
			next = this.activeMenu.children( ".ui-menu-item" )[ filter ]();
		}

		this.focus( event, next );
	},

	nextPage: function( event ) {
		var item, base, height;

		if ( !this.active ) {
			this.next( event );
			return;
		}
		if ( this.isLastItem() ) {
			return;
		}
		if ( this._hasScroll() ) {
			base = this.active.offset().top;
			height = this.element.height();
			this.active.nextAll( ".ui-menu-item" ).each(function() {
				item = $( this );
				return item.offset().top - base - height < 0;
			});

			this.focus( event, item );
		} else {
			this.focus( event, this.activeMenu.children( ".ui-menu-item" )
				[ !this.active ? "first" : "last" ]() );
		}
	},

	previousPage: function( event ) {
		var item, base, height;
		if ( !this.active ) {
			this.next( event );
			return;
		}
		if ( this.isFirstItem() ) {
			return;
		}
		if ( this._hasScroll() ) {
			base = this.active.offset().top;
			height = this.element.height();
			this.active.prevAll( ".ui-menu-item" ).each(function() {
				item = $( this );
				return item.offset().top - base + height > 0;
			});

			this.focus( event, item );
		} else {
			this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
		}
	},

	_hasScroll: function() {
		return this.element.outerHeight() < this.element.prop( "scrollHeight" );
	},

	select: function( event ) {
		// TODO: It should never be possible to not have an active item at this
		// point, but the tests don't trigger mouseenter before click.
		this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
		var ui = { item: this.active };
		if ( !this.active.has( ".ui-menu" ).length ) {
			this.collapseAll( event, true );
		}
		this._trigger( "select", event, ui );
	}
});

}( jQuery ));

(function( $, undefined ) {

$.ui = $.ui || {};

var cachedScrollbarWidth,
	max = Math.max,
	abs = Math.abs,
	round = Math.round,
	rhorizontal = /left|center|right/,
	rvertical = /top|center|bottom/,
	roffset = /[\+\-]\d+(\.[\d]+)?%?/,
	rposition = /^\w+/,
	rpercent = /%$/,
	_position = $.fn.position;

function getOffsets( offsets, width, height ) {
	return [
		parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
		parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
	];
}

function parseCss( element, property ) {
	return parseInt( $.css( element, property ), 10 ) || 0;
}

function getDimensions( elem ) {
	var raw = elem[0];
	if ( raw.nodeType === 9 ) {
		return {
			width: elem.width(),
			height: elem.height(),
			offset: { top: 0, left: 0 }
		};
	}
	if ( $.isWindow( raw ) ) {
		return {
			width: elem.width(),
			height: elem.height(),
			offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
		};
	}
	if ( raw.preventDefault ) {
		return {
			width: 0,
			height: 0,
			offset: { top: raw.pageY, left: raw.pageX }
		};
	}
	return {
		width: elem.outerWidth(),
		height: elem.outerHeight(),
		offset: elem.offset()
	};
}

$.position = {
	scrollbarWidth: function() {
		if ( cachedScrollbarWidth !== undefined ) {
			return cachedScrollbarWidth;
		}
		var w1, w2,
			div = $( "<div style='display:block;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
			innerDiv = div.children()[0];

		$( "body" ).append( div );
		w1 = innerDiv.offsetWidth;
		div.css( "overflow", "scroll" );

		w2 = innerDiv.offsetWidth;

		if ( w1 === w2 ) {
			w2 = div[0].clientWidth;
		}

		div.remove();

		return (cachedScrollbarWidth = w1 - w2);
	},
	getScrollInfo: function( within ) {
		var overflowX = within.isWindow ? "" : within.element.css( "overflow-x" ),
			overflowY = within.isWindow ? "" : within.element.css( "overflow-y" ),
			hasOverflowX = overflowX === "scroll" ||
				( overflowX === "auto" && within.width < within.element[0].scrollWidth ),
			hasOverflowY = overflowY === "scroll" ||
				( overflowY === "auto" && within.height < within.element[0].scrollHeight );
		return {
			width: hasOverflowY ? $.position.scrollbarWidth() : 0,
			height: hasOverflowX ? $.position.scrollbarWidth() : 0
		};
	},
	getWithinInfo: function( element ) {
		var withinElement = $( element || window ),
			isWindow = $.isWindow( withinElement[0] );
		return {
			element: withinElement,
			isWindow: isWindow,
			offset: withinElement.offset() || { left: 0, top: 0 },
			scrollLeft: withinElement.scrollLeft(),
			scrollTop: withinElement.scrollTop(),
			width: isWindow ? withinElement.width() : withinElement.outerWidth(),
			height: isWindow ? withinElement.height() : withinElement.outerHeight()
		};
	}
};

$.fn.position = function( options ) {
	if ( !options || !options.of ) {
		return _position.apply( this, arguments );
	}

	// make a copy, we don't want to modify arguments
	options = $.extend( {}, options );

	var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
		target = $( options.of ),
		within = $.position.getWithinInfo( options.within ),
		scrollInfo = $.position.getScrollInfo( within ),
		collision = ( options.collision || "flip" ).split( " " ),
		offsets = {};

	dimensions = getDimensions( target );
	if ( target[0].preventDefault ) {
		// force left top to allow flipping
		options.at = "left top";
	}
	targetWidth = dimensions.width;
	targetHeight = dimensions.height;
	targetOffset = dimensions.offset;
	// clone to reuse original targetOffset later
	basePosition = $.extend( {}, targetOffset );

	// force my and at to have valid horizontal and vertical positions
	// if a value is missing or invalid, it will be converted to center
	$.each( [ "my", "at" ], function() {
		var pos = ( options[ this ] || "" ).split( " " ),
			horizontalOffset,
			verticalOffset;

		if ( pos.length === 1) {
			pos = rhorizontal.test( pos[ 0 ] ) ?
				pos.concat( [ "center" ] ) :
				rvertical.test( pos[ 0 ] ) ?
					[ "center" ].concat( pos ) :
					[ "center", "center" ];
		}
		pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
		pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";

		// calculate offsets
		horizontalOffset = roffset.exec( pos[ 0 ] );
		verticalOffset = roffset.exec( pos[ 1 ] );
		offsets[ this ] = [
			horizontalOffset ? horizontalOffset[ 0 ] : 0,
			verticalOffset ? verticalOffset[ 0 ] : 0
		];

		// reduce to just the positions without the offsets
		options[ this ] = [
			rposition.exec( pos[ 0 ] )[ 0 ],
			rposition.exec( pos[ 1 ] )[ 0 ]
		];
	});

	// normalize collision option
	if ( collision.length === 1 ) {
		collision[ 1 ] = collision[ 0 ];
	}

	if ( options.at[ 0 ] === "right" ) {
		basePosition.left += targetWidth;
	} else if ( options.at[ 0 ] === "center" ) {
		basePosition.left += targetWidth / 2;
	}

	if ( options.at[ 1 ] === "bottom" ) {
		basePosition.top += targetHeight;
	} else if ( options.at[ 1 ] === "center" ) {
		basePosition.top += targetHeight / 2;
	}

	atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
	basePosition.left += atOffset[ 0 ];
	basePosition.top += atOffset[ 1 ];

	return this.each(function() {
		var collisionPosition, using,
			elem = $( this ),
			elemWidth = elem.outerWidth(),
			elemHeight = elem.outerHeight(),
			marginLeft = parseCss( this, "marginLeft" ),
			marginTop = parseCss( this, "marginTop" ),
			collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + scrollInfo.width,
			collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + scrollInfo.height,
			position = $.extend( {}, basePosition ),
			myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );

		if ( options.my[ 0 ] === "right" ) {
			position.left -= elemWidth;
		} else if ( options.my[ 0 ] === "center" ) {
			position.left -= elemWidth / 2;
		}

		if ( options.my[ 1 ] === "bottom" ) {
			position.top -= elemHeight;
		} else if ( options.my[ 1 ] === "center" ) {
			position.top -= elemHeight / 2;
		}

		position.left += myOffset[ 0 ];
		position.top += myOffset[ 1 ];

		// if the browser doesn't support fractions, then round for consistent results
		if ( !$.support.offsetFractions ) {
			position.left = round( position.left );
			position.top = round( position.top );
		}

		collisionPosition = {
			marginLeft: marginLeft,
			marginTop: marginTop
		};

		$.each( [ "left", "top" ], function( i, dir ) {
			if ( $.ui.position[ collision[ i ] ] ) {
				$.ui.position[ collision[ i ] ][ dir ]( position, {
					targetWidth: targetWidth,
					targetHeight: targetHeight,
					elemWidth: elemWidth,
					elemHeight: elemHeight,
					collisionPosition: collisionPosition,
					collisionWidth: collisionWidth,
					collisionHeight: collisionHeight,
					offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
					my: options.my,
					at: options.at,
					within: within,
					elem : elem
				});
			}
		});

		if ( options.using ) {
			// adds feedback as second argument to using callback, if present
			using = function( props ) {
				var left = targetOffset.left - position.left,
					right = left + targetWidth - elemWidth,
					top = targetOffset.top - position.top,
					bottom = top + targetHeight - elemHeight,
					feedback = {
						target: {
							element: target,
							left: targetOffset.left,
							top: targetOffset.top,
							width: targetWidth,
							height: targetHeight
						},
						element: {
							element: elem,
							left: position.left,
							top: position.top,
							width: elemWidth,
							height: elemHeight
						},
						horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
						vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
					};
				if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
					feedback.horizontal = "center";
				}
				if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
					feedback.vertical = "middle";
				}
				if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
					feedback.important = "horizontal";
				} else {
					feedback.important = "vertical";
				}
				options.using.call( this, props, feedback );
			};
		}

		elem.offset( $.extend( position, { using: using } ) );
	});
};

$.ui.position = {
	fit: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
				outerWidth = within.width,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = withinOffset - collisionPosLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
				newOverRight;

			// element is wider than within
			if ( data.collisionWidth > outerWidth ) {
				// element is initially over the left side of within
				if ( overLeft > 0 && overRight <= 0 ) {
					newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - withinOffset;
					position.left += overLeft - newOverRight;
				// element is initially over right side of within
				} else if ( overRight > 0 && overLeft <= 0 ) {
					position.left = withinOffset;
				// element is initially over both left and right sides of within
				} else {
					if ( overLeft > overRight ) {
						position.left = withinOffset + outerWidth - data.collisionWidth;
					} else {
						position.left = withinOffset;
					}
				}
			// too far left -> align with left edge
			} else if ( overLeft > 0 ) {
				position.left += overLeft;
			// too far right -> align with right edge
			} else if ( overRight > 0 ) {
				position.left -= overRight;
			// adjust based on position and margin
			} else {
				position.left = max( position.left - collisionPosLeft, position.left );
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
				outerHeight = data.within.height,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = withinOffset - collisionPosTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
				newOverBottom;

			// element is taller than within
			if ( data.collisionHeight > outerHeight ) {
				// element is initially over the top of within
				if ( overTop > 0 && overBottom <= 0 ) {
					newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - withinOffset;
					position.top += overTop - newOverBottom;
				// element is initially over bottom of within
				} else if ( overBottom > 0 && overTop <= 0 ) {
					position.top = withinOffset;
				// element is initially over both top and bottom of within
				} else {
					if ( overTop > overBottom ) {
						position.top = withinOffset + outerHeight - data.collisionHeight;
					} else {
						position.top = withinOffset;
					}
				}
			// too far up -> align with top
			} else if ( overTop > 0 ) {
				position.top += overTop;
			// too far down -> align with bottom edge
			} else if ( overBottom > 0 ) {
				position.top -= overBottom;
			// adjust based on position and margin
			} else {
				position.top = max( position.top - collisionPosTop, position.top );
			}
		}
	},
	flip: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.left + within.scrollLeft,
				outerWidth = within.width,
				offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = collisionPosLeft - offsetLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
				myOffset = data.my[ 0 ] === "left" ?
					-data.elemWidth :
					data.my[ 0 ] === "right" ?
						data.elemWidth :
						0,
				atOffset = data.at[ 0 ] === "left" ?
					data.targetWidth :
					data.at[ 0 ] === "right" ?
						-data.targetWidth :
						0,
				offset = -2 * data.offset[ 0 ],
				newOverRight,
				newOverLeft;

			if ( overLeft < 0 ) {
				newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - outerWidth - withinOffset;
				if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
					position.left += myOffset + atOffset + offset;
				}
			}
			else if ( overRight > 0 ) {
				newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + atOffset + offset - offsetLeft;
				if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
					position.left += myOffset + atOffset + offset;
				}
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.top + within.scrollTop,
				outerHeight = within.height,
				offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = collisionPosTop - offsetTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
				top = data.my[ 1 ] === "top",
				myOffset = top ?
					-data.elemHeight :
					data.my[ 1 ] === "bottom" ?
						data.elemHeight :
						0,
				atOffset = data.at[ 1 ] === "top" ?
					data.targetHeight :
					data.at[ 1 ] === "bottom" ?
						-data.targetHeight :
						0,
				offset = -2 * data.offset[ 1 ],
				newOverTop,
				newOverBottom;
			if ( overTop < 0 ) {
				newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - outerHeight - withinOffset;
				if ( ( position.top + myOffset + atOffset + offset) > overTop && ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) ) {
					position.top += myOffset + atOffset + offset;
				}
			}
			else if ( overBottom > 0 ) {
				newOverTop = position.top -  data.collisionPosition.marginTop + myOffset + atOffset + offset - offsetTop;
				if ( ( position.top + myOffset + atOffset + offset) > overBottom && ( newOverTop > 0 || abs( newOverTop ) < overBottom ) ) {
					position.top += myOffset + atOffset + offset;
				}
			}
		}
	},
	flipfit: {
		left: function() {
			$.ui.position.flip.left.apply( this, arguments );
			$.ui.position.fit.left.apply( this, arguments );
		},
		top: function() {
			$.ui.position.flip.top.apply( this, arguments );
			$.ui.position.fit.top.apply( this, arguments );
		}
	}
};

// fraction support test
(function () {
	var testElement, testElementParent, testElementStyle, offsetLeft, i,
		body = document.getElementsByTagName( "body" )[ 0 ],
		div = document.createElement( "div" );

	//Create a "fake body" for testing based on method used in jQuery.support
	testElement = document.createElement( body ? "div" : "body" );
	testElementStyle = {
		visibility: "hidden",
		width: 0,
		height: 0,
		border: 0,
		margin: 0,
		background: "none"
	};
	if ( body ) {
		$.extend( testElementStyle, {
			position: "absolute",
			left: "-1000px",
			top: "-1000px"
		});
	}
	for ( i in testElementStyle ) {
		testElement.style[ i ] = testElementStyle[ i ];
	}
	testElement.appendChild( div );
	testElementParent = body || document.documentElement;
	testElementParent.insertBefore( testElement, testElementParent.firstChild );

	div.style.cssText = "position: absolute; left: 10.7432222px;";

	offsetLeft = $( div ).offset().left;
	$.support.offsetFractions = offsetLeft > 10 && offsetLeft < 11;

	testElement.innerHTML = "";
	testElementParent.removeChild( testElement );
})();

}( jQuery ) );

(function( $, undefined ) {

$.widget( "ui.progressbar", {
	version: "1.10.3",
	options: {
		max: 100,
		value: 0,

		change: null,
		complete: null
	},

	min: 0,

	_create: function() {
		// Constrain initial value
		this.oldValue = this.options.value = this._constrainedValue();

		this.element
			.addClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )
			.attr({
				// Only set static values, aria-valuenow and aria-valuemax are
				// set inside _refreshValue()
				role: "progressbar",
				"aria-valuemin": this.min
			});

		this.valueDiv = $( "<div class='ui-progressbar-value ui-widget-header ui-corner-left'></div>" )
			.appendTo( this.element );

		this._refreshValue();
	},

	_destroy: function() {
		this.element
			.removeClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )
			.removeAttr( "role" )
			.removeAttr( "aria-valuemin" )
			.removeAttr( "aria-valuemax" )
			.removeAttr( "aria-valuenow" );

		this.valueDiv.remove();
	},

	value: function( newValue ) {
		if ( newValue === undefined ) {
			return this.options.value;
		}

		this.options.value = this._constrainedValue( newValue );
		this._refreshValue();
	},

	_constrainedValue: function( newValue ) {
		if ( newValue === undefined ) {
			newValue = this.options.value;
		}

		this.indeterminate = newValue === false;

		// sanitize value
		if ( typeof newValue !== "number" ) {
			newValue = 0;
		}

		return this.indeterminate ? false :
			Math.min( this.options.max, Math.max( this.min, newValue ) );
	},

	_setOptions: function( options ) {
		// Ensure "value" option is set after other values (like max)
		var value = options.value;
		delete options.value;

		this._super( options );

		this.options.value = this._constrainedValue( value );
		this._refreshValue();
	},

	_setOption: function( key, value ) {
		if ( key === "max" ) {
			// Don't allow a max less than min
			value = Math.max( this.min, value );
		}

		this._super( key, value );
	},

	_percentage: function() {
		return this.indeterminate ? 100 : 100 * ( this.options.value - this.min ) / ( this.options.max - this.min );
	},

	_refreshValue: function() {
		var value = this.options.value,
			percentage = this._percentage();

		this.valueDiv
			.toggle( this.indeterminate || value > this.min )
			.toggleClass( "ui-corner-right", value === this.options.max )
			.width( percentage.toFixed(0) + "%" );

		this.element.toggleClass( "ui-progressbar-indeterminate", this.indeterminate );

		if ( this.indeterminate ) {
			this.element.removeAttr( "aria-valuenow" );
			if ( !this.overlayDiv ) {
				this.overlayDiv = $( "<div class='ui-progressbar-overlay'></div>" ).appendTo( this.valueDiv );
			}
		} else {
			this.element.attr({
				"aria-valuemax": this.options.max,
				"aria-valuenow": value
			});
			if ( this.overlayDiv ) {
				this.overlayDiv.remove();
				this.overlayDiv = null;
			}
		}

		if ( this.oldValue !== value ) {
			this.oldValue = value;
			this._trigger( "change" );
		}
		if ( value === this.options.max ) {
			this._trigger( "complete" );
		}
	}
});

})( jQuery );

(function( $, undefined ) {

// number of pages in a slider
// (how many times can you page up/down to go through the whole range)
var numPages = 5;

$.widget( "ui.slider", $.ui.mouse, {
	version: "1.10.3",
	widgetEventPrefix: "slide",

	options: {
		animate: false,
		distance: 0,
		max: 100,
		min: 0,
		orientation: "horizontal",
		range: false,
		step: 1,
		value: 0,
		values: null,

		// callbacks
		change: null,
		slide: null,
		start: null,
		stop: null
	},

	_create: function() {
		this._keySliding = false;
		this._mouseSliding = false;
		this._animateOff = true;
		this._handleIndex = null;
		this._detectOrientation();
		this._mouseInit();

		this.element
			.addClass( "ui-slider" +
				" ui-slider-" + this.orientation +
				" ui-widget" +
				" ui-widget-content" +
				" ui-corner-all");

		this._refresh();
		this._setOption( "disabled", this.options.disabled );

		this._animateOff = false;
	},

	_refresh: function() {
		this._createRange();
		this._createHandles();
		this._setupEvents();
		this._refreshValue();
	},

	_createHandles: function() {
		var i, handleCount,
			options = this.options,
			existingHandles = this.element.find( ".ui-slider-handle" ).addClass( "ui-state-default ui-corner-all" ),
			handle = "<a class='ui-slider-handle ui-state-default ui-corner-all' href='#'></a>",
			handles = [];

		handleCount = ( options.values && options.values.length ) || 1;

		if ( existingHandles.length > handleCount ) {
			existingHandles.slice( handleCount ).remove();
			existingHandles = existingHandles.slice( 0, handleCount );
		}

		for ( i = existingHandles.length; i < handleCount; i++ ) {
			handles.push( handle );
		}

		this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) );

		this.handle = this.handles.eq( 0 );

		this.handles.each(function( i ) {
			$( this ).data( "ui-slider-handle-index", i );
		});
	},

	_createRange: function() {
		var options = this.options,
			classes = "";

		if ( options.range ) {
			if ( options.range === true ) {
				if ( !options.values ) {
					options.values = [ this._valueMin(), this._valueMin() ];
				} else if ( options.values.length && options.values.length !== 2 ) {
					options.values = [ options.values[0], options.values[0] ];
				} else if ( $.isArray( options.values ) ) {
					options.values = options.values.slice(0);
				}
			}

			if ( !this.range || !this.range.length ) {
				this.range = $( "<div></div>" )
					.appendTo( this.element );

				classes = "ui-slider-range" +
				// note: this isn't the most fittingly semantic framework class for this element,
				// but worked best visually with a variety of themes
				" ui-widget-header ui-corner-all";
			} else {
				this.range.removeClass( "ui-slider-range-min ui-slider-range-max" )
					// Handle range switching from true to min/max
					.css({
						"left": "",
						"bottom": ""
					});
			}

			this.range.addClass( classes +
				( ( options.range === "min" || options.range === "max" ) ? " ui-slider-range-" + options.range : "" ) );
		} else {
			this.range = $([]);
		}
	},

	_setupEvents: function() {
		var elements = this.handles.add( this.range ).filter( "a" );
		this._off( elements );
		this._on( elements, this._handleEvents );
		this._hoverable( elements );
		this._focusable( elements );
	},

	_destroy: function() {
		this.handles.remove();
		this.range.remove();

		this.element
			.removeClass( "ui-slider" +
				" ui-slider-horizontal" +
				" ui-slider-vertical" +
				" ui-widget" +
				" ui-widget-content" +
				" ui-corner-all" );

		this._mouseDestroy();
	},

	_mouseCapture: function( event ) {
		var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle,
			that = this,
			o = this.options;

		if ( o.disabled ) {
			return false;
		}

		this.elementSize = {
			width: this.element.outerWidth(),
			height: this.element.outerHeight()
		};
		this.elementOffset = this.element.offset();

		position = { x: event.pageX, y: event.pageY };
		normValue = this._normValueFromMouse( position );
		distance = this._valueMax() - this._valueMin() + 1;
		this.handles.each(function( i ) {
			var thisDistance = Math.abs( normValue - that.values(i) );
			if (( distance > thisDistance ) ||
				( distance === thisDistance &&
					(i === that._lastChangedValue || that.values(i) === o.min ))) {
				distance = thisDistance;
				closestHandle = $( this );
				index = i;
			}
		});

		allowed = this._start( event, index );
		if ( allowed === false ) {
			return false;
		}
		this._mouseSliding = true;

		this._handleIndex = index;

		closestHandle
			.addClass( "ui-state-active" )
			.focus();

		offset = closestHandle.offset();
		mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" );
		this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
			left: event.pageX - offset.left - ( closestHandle.width() / 2 ),
			top: event.pageY - offset.top -
				( closestHandle.height() / 2 ) -
				( parseInt( closestHandle.css("borderTopWidth"), 10 ) || 0 ) -
				( parseInt( closestHandle.css("borderBottomWidth"), 10 ) || 0) +
				( parseInt( closestHandle.css("marginTop"), 10 ) || 0)
		};

		if ( !this.handles.hasClass( "ui-state-hover" ) ) {
			this._slide( event, index, normValue );
		}
		this._animateOff = true;
		return true;
	},

	_mouseStart: function() {
		return true;
	},

	_mouseDrag: function( event ) {
		var position = { x: event.pageX, y: event.pageY },
			normValue = this._normValueFromMouse( position );

		this._slide( event, this._handleIndex, normValue );

		return false;
	},

	_mouseStop: function( event ) {
		this.handles.removeClass( "ui-state-active" );
		this._mouseSliding = false;

		this._stop( event, this._handleIndex );
		this._change( event, this._handleIndex );

		this._handleIndex = null;
		this._clickOffset = null;
		this._animateOff = false;

		return false;
	},

	_detectOrientation: function() {
		this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal";
	},

	_normValueFromMouse: function( position ) {
		var pixelTotal,
			pixelMouse,
			percentMouse,
			valueTotal,
			valueMouse;

		if ( this.orientation === "horizontal" ) {
			pixelTotal = this.elementSize.width;
			pixelMouse = position.x - this.elementOffset.left - ( this._clickOffset ? this._clickOffset.left : 0 );
		} else {
			pixelTotal = this.elementSize.height;
			pixelMouse = position.y - this.elementOffset.top - ( this._clickOffset ? this._clickOffset.top : 0 );
		}

		percentMouse = ( pixelMouse / pixelTotal );
		if ( percentMouse > 1 ) {
			percentMouse = 1;
		}
		if ( percentMouse < 0 ) {
			percentMouse = 0;
		}
		if ( this.orientation === "vertical" ) {
			percentMouse = 1 - percentMouse;
		}

		valueTotal = this._valueMax() - this._valueMin();
		valueMouse = this._valueMin() + percentMouse * valueTotal;

		return this._trimAlignValue( valueMouse );
	},

	_start: function( event, index ) {
		var uiHash = {
			handle: this.handles[ index ],
			value: this.value()
		};
		if ( this.options.values && this.options.values.length ) {
			uiHash.value = this.values( index );
			uiHash.values = this.values();
		}
		return this._trigger( "start", event, uiHash );
	},

	_slide: function( event, index, newVal ) {
		var otherVal,
			newValues,
			allowed;

		if ( this.options.values && this.options.values.length ) {
			otherVal = this.values( index ? 0 : 1 );

			if ( ( this.options.values.length === 2 && this.options.range === true ) &&
					( ( index === 0 && newVal > otherVal) || ( index === 1 && newVal < otherVal ) )
				) {
				newVal = otherVal;
			}

			if ( newVal !== this.values( index ) ) {
				newValues = this.values();
				newValues[ index ] = newVal;
				// A slide can be canceled by returning false from the slide callback
				allowed = this._trigger( "slide", event, {
					handle: this.handles[ index ],
					value: newVal,
					values: newValues
				} );
				otherVal = this.values( index ? 0 : 1 );
				if ( allowed !== false ) {
					this.values( index, newVal, true );
				}
			}
		} else {
			if ( newVal !== this.value() ) {
				// A slide can be canceled by returning false from the slide callback
				allowed = this._trigger( "slide", event, {
					handle: this.handles[ index ],
					value: newVal
				} );
				if ( allowed !== false ) {
					this.value( newVal );
				}
			}
		}
	},

	_stop: function( event, index ) {
		var uiHash = {
			handle: this.handles[ index ],
			value: this.value()
		};
		if ( this.options.values && this.options.values.length ) {
			uiHash.value = this.values( index );
			uiHash.values = this.values();
		}

		this._trigger( "stop", event, uiHash );
	},

	_change: function( event, index ) {
		if ( !this._keySliding && !this._mouseSliding ) {
			var uiHash = {
				handle: this.handles[ index ],
				value: this.value()
			};
			if ( this.options.values && this.options.values.length ) {
				uiHash.value = this.values( index );
				uiHash.values = this.values();
			}

			//store the last changed value index for reference when handles overlap
			this._lastChangedValue = index;

			this._trigger( "change", event, uiHash );
		}
	},

	value: function( newValue ) {
		if ( arguments.length ) {
			this.options.value = this._trimAlignValue( newValue );
			this._refreshValue();
			this._change( null, 0 );
			return;
		}

		return this._value();
	},

	values: function( index, newValue ) {
		var vals,
			newValues,
			i;

		if ( arguments.length > 1 ) {
			this.options.values[ index ] = this._trimAlignValue( newValue );
			this._refreshValue();
			this._change( null, index );
			return;
		}

		if ( arguments.length ) {
			if ( $.isArray( arguments[ 0 ] ) ) {
				vals = this.options.values;
				newValues = arguments[ 0 ];
				for ( i = 0; i < vals.length; i += 1 ) {
					vals[ i ] = this._trimAlignValue( newValues[ i ] );
					this._change( null, i );
				}
				this._refreshValue();
			} else {
				if ( this.options.values && this.options.values.length ) {
					return this._values( index );
				} else {
					return this.value();
				}
			}
		} else {
			return this._values();
		}
	},

	_setOption: function( key, value ) {
		var i,
			valsLength = 0;

		if ( key === "range" && this.options.range === true ) {
			if ( value === "min" ) {
				this.options.value = this._values( 0 );
				this.options.values = null;
			} else if ( value === "max" ) {
				this.options.value = this._values( this.options.values.length-1 );
				this.options.values = null;
			}
		}

		if ( $.isArray( this.options.values ) ) {
			valsLength = this.options.values.length;
		}

		$.Widget.prototype._setOption.apply( this, arguments );

		switch ( key ) {
			case "orientation":
				this._detectOrientation();
				this.element
					.removeClass( "ui-slider-horizontal ui-slider-vertical" )
					.addClass( "ui-slider-" + this.orientation );
				this._refreshValue();
				break;
			case "value":
				this._animateOff = true;
				this._refreshValue();
				this._change( null, 0 );
				this._animateOff = false;
				break;
			case "values":
				this._animateOff = true;
				this._refreshValue();
				for ( i = 0; i < valsLength; i += 1 ) {
					this._change( null, i );
				}
				this._animateOff = false;
				break;
			case "min":
			case "max":
				this._animateOff = true;
				this._refreshValue();
				this._animateOff = false;
				break;
			case "range":
				this._animateOff = true;
				this._refresh();
				this._animateOff = false;
				break;
		}
	},

	//internal value getter
	// _value() returns value trimmed by min and max, aligned by step
	_value: function() {
		var val = this.options.value;
		val = this._trimAlignValue( val );

		return val;
	},

	//internal values getter
	// _values() returns array of values trimmed by min and max, aligned by step
	// _values( index ) returns single value trimmed by min and max, aligned by step
	_values: function( index ) {
		var val,
			vals,
			i;

		if ( arguments.length ) {
			val = this.options.values[ index ];
			val = this._trimAlignValue( val );

			return val;
		} else if ( this.options.values && this.options.values.length ) {
			// .slice() creates a copy of the array
			// this copy gets trimmed by min and max and then returned
			vals = this.options.values.slice();
			for ( i = 0; i < vals.length; i+= 1) {
				vals[ i ] = this._trimAlignValue( vals[ i ] );
			}

			return vals;
		} else {
			return [];
		}
	},

	// returns the step-aligned value that val is closest to, between (inclusive) min and max
	_trimAlignValue: function( val ) {
		if ( val <= this._valueMin() ) {
			return this._valueMin();
		}
		if ( val >= this._valueMax() ) {
			return this._valueMax();
		}
		var step = ( this.options.step > 0 ) ? this.options.step : 1,
			valModStep = (val - this._valueMin()) % step,
			alignValue = val - valModStep;

		if ( Math.abs(valModStep) * 2 >= step ) {
			alignValue += ( valModStep > 0 ) ? step : ( -step );
		}

		// Since JavaScript has problems with large floats, round
		// the final value to 5 digits after the decimal point (see #4124)
		return parseFloat( alignValue.toFixed(5) );
	},

	_valueMin: function() {
		return this.options.min;
	},

	_valueMax: function() {
		return this.options.max;
	},

	_refreshValue: function() {
		var lastValPercent, valPercent, value, valueMin, valueMax,
			oRange = this.options.range,
			o = this.options,
			that = this,
			animate = ( !this._animateOff ) ? o.animate : false,
			_set = {};

		if ( this.options.values && this.options.values.length ) {
			this.handles.each(function( i ) {
				valPercent = ( that.values(i) - that._valueMin() ) / ( that._valueMax() - that._valueMin() ) * 100;
				_set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
				$( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
				if ( that.options.range === true ) {
					if ( that.orientation === "horizontal" ) {
						if ( i === 0 ) {
							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { left: valPercent + "%" }, o.animate );
						}
						if ( i === 1 ) {
							that.range[ animate ? "animate" : "css" ]( { width: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } );
						}
					} else {
						if ( i === 0 ) {
							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { bottom: ( valPercent ) + "%" }, o.animate );
						}
						if ( i === 1 ) {
							that.range[ animate ? "animate" : "css" ]( { height: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } );
						}
					}
				}
				lastValPercent = valPercent;
			});
		} else {
			value = this.value();
			valueMin = this._valueMin();
			valueMax = this._valueMax();
			valPercent = ( valueMax !== valueMin ) ?
					( value - valueMin ) / ( valueMax - valueMin ) * 100 :
					0;
			_set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
			this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );

			if ( oRange === "min" && this.orientation === "horizontal" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { width: valPercent + "%" }, o.animate );
			}
			if ( oRange === "max" && this.orientation === "horizontal" ) {
				this.range[ animate ? "animate" : "css" ]( { width: ( 100 - valPercent ) + "%" }, { queue: false, duration: o.animate } );
			}
			if ( oRange === "min" && this.orientation === "vertical" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { height: valPercent + "%" }, o.animate );
			}
			if ( oRange === "max" && this.orientation === "vertical" ) {
				this.range[ animate ? "animate" : "css" ]( { height: ( 100 - valPercent ) + "%" }, { queue: false, duration: o.animate } );
			}
		}
	},

	_handleEvents: {
		keydown: function( event ) {
			/*jshint maxcomplexity:25*/
			var allowed, curVal, newVal, step,
				index = $( event.target ).data( "ui-slider-handle-index" );

			switch ( event.keyCode ) {
				case $.ui.keyCode.HOME:
				case $.ui.keyCode.END:
				case $.ui.keyCode.PAGE_UP:
				case $.ui.keyCode.PAGE_DOWN:
				case $.ui.keyCode.UP:
				case $.ui.keyCode.RIGHT:
				case $.ui.keyCode.DOWN:
				case $.ui.keyCode.LEFT:
					event.preventDefault();
					if ( !this._keySliding ) {
						this._keySliding = true;
						$( event.target ).addClass( "ui-state-active" );
						allowed = this._start( event, index );
						if ( allowed === false ) {
							return;
						}
					}
					break;
			}

			step = this.options.step;
			if ( this.options.values && this.options.values.length ) {
				curVal = newVal = this.values( index );
			} else {
				curVal = newVal = this.value();
			}

			switch ( event.keyCode ) {
				case $.ui.keyCode.HOME:
					newVal = this._valueMin();
					break;
				case $.ui.keyCode.END:
					newVal = this._valueMax();
					break;
				case $.ui.keyCode.PAGE_UP:
					newVal = this._trimAlignValue( curVal + ( (this._valueMax() - this._valueMin()) / numPages ) );
					break;
				case $.ui.keyCode.PAGE_DOWN:
					newVal = this._trimAlignValue( curVal - ( (this._valueMax() - this._valueMin()) / numPages ) );
					break;
				case $.ui.keyCode.UP:
				case $.ui.keyCode.RIGHT:
					if ( curVal === this._valueMax() ) {
						return;
					}
					newVal = this._trimAlignValue( curVal + step );
					break;
				case $.ui.keyCode.DOWN:
				case $.ui.keyCode.LEFT:
					if ( curVal === this._valueMin() ) {
						return;
					}
					newVal = this._trimAlignValue( curVal - step );
					break;
			}

			this._slide( event, index, newVal );
		},
		click: function( event ) {
			event.preventDefault();
		},
		keyup: function( event ) {
			var index = $( event.target ).data( "ui-slider-handle-index" );

			if ( this._keySliding ) {
				this._keySliding = false;
				this._stop( event, index );
				this._change( event, index );
				$( event.target ).removeClass( "ui-state-active" );
			}
		}
	}

});

}(jQuery));

(function( $ ) {

function modifier( fn ) {
	return function() {
		var previous = this.element.val();
		fn.apply( this, arguments );
		this._refresh();
		if ( previous !== this.element.val() ) {
			this._trigger( "change" );
		}
	};
}

$.widget( "ui.spinner", {
	version: "1.10.3",
	defaultElement: "<input>",
	widgetEventPrefix: "spin",
	options: {
		culture: null,
		icons: {
			down: "ui-icon-triangle-1-s",
			up: "ui-icon-triangle-1-n"
		},
		incremental: true,
		max: null,
		min: null,
		numberFormat: null,
		page: 10,
		step: 1,

		change: null,
		spin: null,
		start: null,
		stop: null
	},

	_create: function() {
		// handle string values that need to be parsed
		this._setOption( "max", this.options.max );
		this._setOption( "min", this.options.min );
		this._setOption( "step", this.options.step );

		// format the value, but don't constrain
		this._value( this.element.val(), true );

		this._draw();
		this._on( this._events );
		this._refresh();

		// turning off autocomplete prevents the browser from remembering the
		// value when navigating through history, so we re-enable autocomplete
		// if the page is unloaded before the widget is destroyed. #7790
		this._on( this.window, {
			beforeunload: function() {
				this.element.removeAttr( "autocomplete" );
			}
		});
	},

	_getCreateOptions: function() {
		var options = {},
			element = this.element;

		$.each( [ "min", "max", "step" ], function( i, option ) {
			var value = element.attr( option );
			if ( value !== undefined && value.length ) {
				options[ option ] = value;
			}
		});

		return options;
	},

	_events: {
		keydown: function( event ) {
			if ( this._start( event ) && this._keydown( event ) ) {
				event.preventDefault();
			}
		},
		keyup: "_stop",
		focus: function() {
			this.previous = this.element.val();
		},
		blur: function( event ) {
			if ( this.cancelBlur ) {
				delete this.cancelBlur;
				return;
			}

			this._stop();
			this._refresh();
			if ( this.previous !== this.element.val() ) {
				this._trigger( "change", event );
			}
		},
		mousewheel: function( event, delta ) {
			if ( !delta ) {
				return;
			}
			if ( !this.spinning && !this._start( event ) ) {
				return false;
			}

			this._spin( (delta > 0 ? 1 : -1) * this.options.step, event );
			clearTimeout( this.mousewheelTimer );
			this.mousewheelTimer = this._delay(function() {
				if ( this.spinning ) {
					this._stop( event );
				}
			}, 100 );
			event.preventDefault();
		},
		"mousedown .ui-spinner-button": function( event ) {
			var previous;

			// We never want the buttons to have focus; whenever the user is
			// interacting with the spinner, the focus should be on the input.
			// If the input is focused then this.previous is properly set from
			// when the input first received focus. If the input is not focused
			// then we need to set this.previous based on the value before spinning.
			previous = this.element[0] === this.document[0].activeElement ?
				this.previous : this.element.val();
			function checkFocus() {
				var isActive = this.element[0] === this.document[0].activeElement;
				if ( !isActive ) {
					this.element.focus();
					this.previous = previous;
					// support: IE
					// IE sets focus asynchronously, so we need to check if focus
					// moved off of the input because the user clicked on the button.
					this._delay(function() {
						this.previous = previous;
					});
				}
			}

			// ensure focus is on (or stays on) the text field
			event.preventDefault();
			checkFocus.call( this );

			// support: IE
			// IE doesn't prevent moving focus even with event.preventDefault()
			// so we set a flag to know when we should ignore the blur event
			// and check (again) if focus moved off of the input.
			this.cancelBlur = true;
			this._delay(function() {
				delete this.cancelBlur;
				checkFocus.call( this );
			});

			if ( this._start( event ) === false ) {
				return;
			}

			this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
		},
		"mouseup .ui-spinner-button": "_stop",
		"mouseenter .ui-spinner-button": function( event ) {
			// button will add ui-state-active if mouse was down while mouseleave and kept down
			if ( !$( event.currentTarget ).hasClass( "ui-state-active" ) ) {
				return;
			}

			if ( this._start( event ) === false ) {
				return false;
			}
			this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
		},
		// TODO: do we really want to consider this a stop?
		// shouldn't we just stop the repeater and wait until mouseup before
		// we trigger the stop event?
		"mouseleave .ui-spinner-button": "_stop"
	},

	_draw: function() {
		var uiSpinner = this.uiSpinner = this.element
			.addClass( "ui-spinner-input" )
			.attr( "autocomplete", "off" )
			.wrap( this._uiSpinnerHtml() )
			.parent()
				// add buttons
				.append( this._buttonHtml() );

		this.element.attr( "role", "spinbutton" );

		// button bindings
		this.buttons = uiSpinner.find( ".ui-spinner-button" )
			.attr( "tabIndex", -1 )
			.button()
			.removeClass( "ui-corner-all" );

		// IE 6 doesn't understand height: 50% for the buttons
		// unless the wrapper has an explicit height
		if ( this.buttons.height() > Math.ceil( uiSpinner.height() * 0.5 ) &&
				uiSpinner.height() > 0 ) {
			uiSpinner.height( uiSpinner.height() );
		}

		// disable spinner if element was already disabled
		if ( this.options.disabled ) {
			this.disable();
		}
	},

	_keydown: function( event ) {
		var options = this.options,
			keyCode = $.ui.keyCode;

		switch ( event.keyCode ) {
		case keyCode.UP:
			this._repeat( null, 1, event );
			return true;
		case keyCode.DOWN:
			this._repeat( null, -1, event );
			return true;
		case keyCode.PAGE_UP:
			this._repeat( null, options.page, event );
			return true;
		case keyCode.PAGE_DOWN:
			this._repeat( null, -options.page, event );
			return true;
		}

		return false;
	},

	_uiSpinnerHtml: function() {
		return "<span class='ui-spinner ui-widget ui-widget-content ui-corner-all'></span>";
	},

	_buttonHtml: function() {
		return "" +
			"<a class='ui-spinner-button ui-spinner-up ui-corner-tr'>" +
				"<span class='ui-icon " + this.options.icons.up + "'>&#9650;</span>" +
			"</a>" +
			"<a class='ui-spinner-button ui-spinner-down ui-corner-br'>" +
				"<span class='ui-icon " + this.options.icons.down + "'>&#9660;</span>" +
			"</a>";
	},

	_start: function( event ) {
		if ( !this.spinning && this._trigger( "start", event ) === false ) {
			return false;
		}

		if ( !this.counter ) {
			this.counter = 1;
		}
		this.spinning = true;
		return true;
	},

	_repeat: function( i, steps, event ) {
		i = i || 500;

		clearTimeout( this.timer );
		this.timer = this._delay(function() {
			this._repeat( 40, steps, event );
		}, i );

		this._spin( steps * this.options.step, event );
	},

	_spin: function( step, event ) {
		var value = this.value() || 0;

		if ( !this.counter ) {
			this.counter = 1;
		}

		value = this._adjustValue( value + step * this._increment( this.counter ) );

		if ( !this.spinning || this._trigger( "spin", event, { value: value } ) !== false) {
			this._value( value );
			this.counter++;
		}
	},

	_increment: function( i ) {
		var incremental = this.options.incremental;

		if ( incremental ) {
			return $.isFunction( incremental ) ?
				incremental( i ) :
				Math.floor( i*i*i/50000 - i*i/500 + 17*i/200 + 1 );
		}

		return 1;
	},

	_precision: function() {
		var precision = this._precisionOf( this.options.step );
		if ( this.options.min !== null ) {
			precision = Math.max( precision, this._precisionOf( this.options.min ) );
		}
		return precision;
	},

	_precisionOf: function( num ) {
		var str = num.toString(),
			decimal = str.indexOf( "." );
		return decimal === -1 ? 0 : str.length - decimal - 1;
	},

	_adjustValue: function( value ) {
		var base, aboveMin,
			options = this.options;

		// make sure we're at a valid step
		// - find out where we are relative to the base (min or 0)
		base = options.min !== null ? options.min : 0;
		aboveMin = value - base;
		// - round to the nearest step
		aboveMin = Math.round(aboveMin / options.step) * options.step;
		// - rounding is based on 0, so adjust back to our base
		value = base + aboveMin;

		// fix precision from bad JS floating point math
		value = parseFloat( value.toFixed( this._precision() ) );

		// clamp the value
		if ( options.max !== null && value > options.max) {
			return options.max;
		}
		if ( options.min !== null && value < options.min ) {
			return options.min;
		}

		return value;
	},

	_stop: function( event ) {
		if ( !this.spinning ) {
			return;
		}

		clearTimeout( this.timer );
		clearTimeout( this.mousewheelTimer );
		this.counter = 0;
		this.spinning = false;
		this._trigger( "stop", event );
	},

	_setOption: function( key, value ) {
		if ( key === "culture" || key === "numberFormat" ) {
			var prevValue = this._parse( this.element.val() );
			this.options[ key ] = value;
			this.element.val( this._format( prevValue ) );
			return;
		}

		if ( key === "max" || key === "min" || key === "step" ) {
			if ( typeof value === "string" ) {
				value = this._parse( value );
			}
		}
		if ( key === "icons" ) {
			this.buttons.first().find( ".ui-icon" )
				.removeClass( this.options.icons.up )
				.addClass( value.up );
			this.buttons.last().find( ".ui-icon" )
				.removeClass( this.options.icons.down )
				.addClass( value.down );
		}

		this._super( key, value );

		if ( key === "disabled" ) {
			if ( value ) {
				this.element.prop( "disabled", true );
				this.buttons.button( "disable" );
			} else {
				this.element.prop( "disabled", false );
				this.buttons.button( "enable" );
			}
		}
	},

	_setOptions: modifier(function( options ) {
		this._super( options );
		this._value( this.element.val() );
	}),

	_parse: function( val ) {
		if ( typeof val === "string" && val !== "" ) {
			val = window.Globalize && this.options.numberFormat ?
				Globalize.parseFloat( val, 10, this.options.culture ) : +val;
		}
		return val === "" || isNaN( val ) ? null : val;
	},

	_format: function( value ) {
		if ( value === "" ) {
			return "";
		}
		return window.Globalize && this.options.numberFormat ?
			Globalize.format( value, this.options.numberFormat, this.options.culture ) :
			value;
	},

	_refresh: function() {
		this.element.attr({
			"aria-valuemin": this.options.min,
			"aria-valuemax": this.options.max,
			// TODO: what should we do with values that can't be parsed?
			"aria-valuenow": this._parse( this.element.val() )
		});
	},

	// update the value without triggering change
	_value: function( value, allowAny ) {
		var parsed;
		if ( value !== "" ) {
			parsed = this._parse( value );
			if ( parsed !== null ) {
				if ( !allowAny ) {
					parsed = this._adjustValue( parsed );
				}
				value = this._format( parsed );
			}
		}
		this.element.val( value );
		this._refresh();
	},

	_destroy: function() {
		this.element
			.removeClass( "ui-spinner-input" )
			.prop( "disabled", false )
			.removeAttr( "autocomplete" )
			.removeAttr( "role" )
			.removeAttr( "aria-valuemin" )
			.removeAttr( "aria-valuemax" )
			.removeAttr( "aria-valuenow" );
		this.uiSpinner.replaceWith( this.element );
	},

	stepUp: modifier(function( steps ) {
		this._stepUp( steps );
	}),
	_stepUp: function( steps ) {
		if ( this._start() ) {
			this._spin( (steps || 1) * this.options.step );
			this._stop();
		}
	},

	stepDown: modifier(function( steps ) {
		this._stepDown( steps );
	}),
	_stepDown: function( steps ) {
		if ( this._start() ) {
			this._spin( (steps || 1) * -this.options.step );
			this._stop();
		}
	},

	pageUp: modifier(function( pages ) {
		this._stepUp( (pages || 1) * this.options.page );
	}),

	pageDown: modifier(function( pages ) {
		this._stepDown( (pages || 1) * this.options.page );
	}),

	value: function( newVal ) {
		if ( !arguments.length ) {
			return this._parse( this.element.val() );
		}
		modifier( this._value ).call( this, newVal );
	},

	widget: function() {
		return this.uiSpinner;
	}
});

}( jQuery ) );

(function( $, undefined ) {

var tabId = 0,
	rhash = /#.*$/;

function getNextTabId() {
	return ++tabId;
}

function isLocal( anchor ) {
	return anchor.hash.length > 1 &&
		decodeURIComponent( anchor.href.replace( rhash, "" ) ) ===
			decodeURIComponent( location.href.replace( rhash, "" ) );
}

$.widget( "ui.tabs", {
	version: "1.10.3",
	delay: 300,
	options: {
		active: null,
		collapsible: false,
		event: "click",
		heightStyle: "content",
		hide: null,
		show: null,

		// callbacks
		activate: null,
		beforeActivate: null,
		beforeLoad: null,
		load: null
	},

	_create: function() {
		var that = this,
			options = this.options;

		this.running = false;

		this.element
			.addClass( "ui-tabs ui-widget ui-widget-content ui-corner-all" )
			.toggleClass( "ui-tabs-collapsible", options.collapsible )
			// Prevent users from focusing disabled tabs via click
			.delegate( ".ui-tabs-nav > li", "mousedown" + this.eventNamespace, function( event ) {
				if ( $( this ).is( ".ui-state-disabled" ) ) {
					event.preventDefault();
				}
			})
			// support: IE <9
			// Preventing the default action in mousedown doesn't prevent IE
			// from focusing the element, so if the anchor gets focused, blur.
			// We don't have to worry about focusing the previously focused
			// element since clicking on a non-focusable element should focus
			// the body anyway.
			.delegate( ".ui-tabs-anchor", "focus" + this.eventNamespace, function() {
				if ( $( this ).closest( "li" ).is( ".ui-state-disabled" ) ) {
					this.blur();
				}
			});

		this._processTabs();
		options.active = this._initialActive();

		// Take disabling tabs via class attribute from HTML
		// into account and update option properly.
		if ( $.isArray( options.disabled ) ) {
			options.disabled = $.unique( options.disabled.concat(
				$.map( this.tabs.filter( ".ui-state-disabled" ), function( li ) {
					return that.tabs.index( li );
				})
			) ).sort();
		}

		// check for length avoids error when initializing empty list
		if ( this.options.active !== false && this.anchors.length ) {
			this.active = this._findActive( options.active );
		} else {
			this.active = $();
		}

		this._refresh();

		if ( this.active.length ) {
			this.load( options.active );
		}
	},

	_initialActive: function() {
		var active = this.options.active,
			collapsible = this.options.collapsible,
			locationHash = location.hash.substring( 1 );

		if ( active === null ) {
			// check the fragment identifier in the URL
			if ( locationHash ) {
				this.tabs.each(function( i, tab ) {
					if ( $( tab ).attr( "aria-controls" ) === locationHash ) {
						active = i;
						return false;
					}
				});
			}

			// check for a tab marked active via a class
			if ( active === null ) {
				active = this.tabs.index( this.tabs.filter( ".ui-tabs-active" ) );
			}

			// no active tab, set to false
			if ( active === null || active === -1 ) {
				active = this.tabs.length ? 0 : false;
			}
		}

		// handle numbers: negative, out of range
		if ( active !== false ) {
			active = this.tabs.index( this.tabs.eq( active ) );
			if ( active === -1 ) {
				active = collapsible ? false : 0;
			}
		}

		// don't allow collapsible: false and active: false
		if ( !collapsible && active === false && this.anchors.length ) {
			active = 0;
		}

		return active;
	},

	_getCreateEventData: function() {
		return {
			tab: this.active,
			panel: !this.active.length ? $() : this._getPanelForTab( this.active )
		};
	},

	_tabKeydown: function( event ) {
		/*jshint maxcomplexity:15*/
		var focusedTab = $( this.document[0].activeElement ).closest( "li" ),
			selectedIndex = this.tabs.index( focusedTab ),
			goingForward = true;

		if ( this._handlePageNav( event ) ) {
			return;
		}

		switch ( event.keyCode ) {
			case $.ui.keyCode.RIGHT:
			case $.ui.keyCode.DOWN:
				selectedIndex++;
				break;
			case $.ui.keyCode.UP:
			case $.ui.keyCode.LEFT:
				goingForward = false;
				selectedIndex--;
				break;
			case $.ui.keyCode.END:
				selectedIndex = this.anchors.length - 1;
				break;
			case $.ui.keyCode.HOME:
				selectedIndex = 0;
				break;
			case $.ui.keyCode.SPACE:
				// Activate only, no collapsing
				event.preventDefault();
				clearTimeout( this.activating );
				this._activate( selectedIndex );
				return;
			case $.ui.keyCode.ENTER:
				// Toggle (cancel delayed activation, allow collapsing)
				event.preventDefault();
				clearTimeout( this.activating );
				// Determine if we should collapse or activate
				this._activate( selectedIndex === this.options.active ? false : selectedIndex );
				return;
			default:
				return;
		}

		// Focus the appropriate tab, based on which key was pressed
		event.preventDefault();
		clearTimeout( this.activating );
		selectedIndex = this._focusNextTab( selectedIndex, goingForward );

		// Navigating with control key will prevent automatic activation
		if ( !event.ctrlKey ) {
			// Update aria-selected immediately so that AT think the tab is already selected.
			// Otherwise AT may confuse the user by stating that they need to activate the tab,
			// but the tab will already be activated by the time the announcement finishes.
			focusedTab.attr( "aria-selected", "false" );
			this.tabs.eq( selectedIndex ).attr( "aria-selected", "true" );

			this.activating = this._delay(function() {
				this.option( "active", selectedIndex );
			}, this.delay );
		}
	},

	_panelKeydown: function( event ) {
		if ( this._handlePageNav( event ) ) {
			return;
		}

		// Ctrl+up moves focus to the current tab
		if ( event.ctrlKey && event.keyCode === $.ui.keyCode.UP ) {
			event.preventDefault();
			this.active.focus();
		}
	},

	// Alt+page up/down moves focus to the previous/next tab (and activates)
	_handlePageNav: function( event ) {
		if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_UP ) {
			this._activate( this._focusNextTab( this.options.active - 1, false ) );
			return true;
		}
		if ( event.altKey && event.keyCode === $.ui.keyCode.PAGE_DOWN ) {
			this._activate( this._focusNextTab( this.options.active + 1, true ) );
			return true;
		}
	},

	_findNextTab: function( index, goingForward ) {
		var lastTabIndex = this.tabs.length - 1;

		function constrain() {
			if ( index > lastTabIndex ) {
				index = 0;
			}
			if ( index < 0 ) {
				index = lastTabIndex;
			}
			return index;
		}

		while ( $.inArray( constrain(), this.options.disabled ) !== -1 ) {
			index = goingForward ? index + 1 : index - 1;
		}

		return index;
	},

	_focusNextTab: function( index, goingForward ) {
		index = this._findNextTab( index, goingForward );
		this.tabs.eq( index ).focus();
		return index;
	},

	_setOption: function( key, value ) {
		if ( key === "active" ) {
			// _activate() will handle invalid values and update this.options
			this._activate( value );
			return;
		}

		if ( key === "disabled" ) {
			// don't use the widget factory's disabled handling
			this._setupDisabled( value );
			return;
		}

		this._super( key, value);

		if ( key === "collapsible" ) {
			this.element.toggleClass( "ui-tabs-collapsible", value );
			// Setting collapsible: false while collapsed; open first panel
			if ( !value && this.options.active === false ) {
				this._activate( 0 );
			}
		}

		if ( key === "event" ) {
			this._setupEvents( value );
		}

		if ( key === "heightStyle" ) {
			this._setupHeightStyle( value );
		}
	},

	_tabId: function( tab ) {
		return tab.attr( "aria-controls" ) || "ui-tabs-" + getNextTabId();
	},

	_sanitizeSelector: function( hash ) {
		return hash ? hash.replace( /[!"$%&'()*+,.\/:;<=>?@\[\]\^`{|}~]/g, "\\$&" ) : "";
	},

	refresh: function() {
		var options = this.options,
			lis = this.tablist.children( ":has(a[href])" );

		// get disabled tabs from class attribute from HTML
		// this will get converted to a boolean if needed in _refresh()
		options.disabled = $.map( lis.filter( ".ui-state-disabled" ), function( tab ) {
			return lis.index( tab );
		});

		this._processTabs();

		// was collapsed or no tabs
		if ( options.active === false || !this.anchors.length ) {
			options.active = false;
			this.active = $();
		// was active, but active tab is gone
		} else if ( this.active.length && !$.contains( this.tablist[ 0 ], this.active[ 0 ] ) ) {
			// all remaining tabs are disabled
			if ( this.tabs.length === options.disabled.length ) {
				options.active = false;
				this.active = $();
			// activate previous tab
			} else {
				this._activate( this._findNextTab( Math.max( 0, options.active - 1 ), false ) );
			}
		// was active, active tab still exists
		} else {
			// make sure active index is correct
			options.active = this.tabs.index( this.active );
		}

		this._refresh();
	},

	_refresh: function() {
		this._setupDisabled( this.options.disabled );
		this._setupEvents( this.options.event );
		this._setupHeightStyle( this.options.heightStyle );

		this.tabs.not( this.active ).attr({
			"aria-selected": "false",
			tabIndex: -1
		});
		this.panels.not( this._getPanelForTab( this.active ) )
			.hide()
			.attr({
				"aria-expanded": "false",
				"aria-hidden": "true"
			});

		// Make sure one tab is in the tab order
		if ( !this.active.length ) {
			this.tabs.eq( 0 ).attr( "tabIndex", 0 );
		} else {
			this.active
				.addClass( "ui-tabs-active ui-state-active" )
				.attr({
					"aria-selected": "true",
					tabIndex: 0
				});
			this._getPanelForTab( this.active )
				.show()
				.attr({
					"aria-expanded": "true",
					"aria-hidden": "false"
				});
		}
	},

	_processTabs: function() {
		var that = this;

		this.tablist = this._getList()
			.addClass( "ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all" )
			.attr( "role", "tablist" );

		this.tabs = this.tablist.find( "> li:has(a[href])" )
			.addClass( "ui-state-default ui-corner-top" )
			.attr({
				role: "tab",
				tabIndex: -1
			});

		this.anchors = this.tabs.map(function() {
				return $( "a", this )[ 0 ];
			})
			.addClass( "ui-tabs-anchor" )
			.attr({
				role: "presentation",
				tabIndex: -1
			});

		this.panels = $();

		this.anchors.each(function( i, anchor ) {
			var selector, panel, panelId,
				anchorId = $( anchor ).uniqueId().attr( "id" ),
				tab = $( anchor ).closest( "li" ),
				originalAriaControls = tab.attr( "aria-controls" );

			// inline tab
			if ( isLocal( anchor ) ) {
				selector = anchor.hash;
				panel = that.element.find( that._sanitizeSelector( selector ) );
			// remote tab
			} else {
				panelId = that._tabId( tab );
				selector = "#" + panelId;
				panel = that.element.find( selector );
				if ( !panel.length ) {
					panel = that._createPanel( panelId );
					panel.insertAfter( that.panels[ i - 1 ] || that.tablist );
				}
				panel.attr( "aria-live", "polite" );
			}

			if ( panel.length) {
				that.panels = that.panels.add( panel );
			}
			if ( originalAriaControls ) {
				tab.data( "ui-tabs-aria-controls", originalAriaControls );
			}
			tab.attr({
				"aria-controls": selector.substring( 1 ),
				"aria-labelledby": anchorId
			});
			panel.attr( "aria-labelledby", anchorId );
		});

		this.panels
			.addClass( "ui-tabs-panel ui-widget-content ui-corner-bottom" )
			.attr( "role", "tabpanel" );
	},

	// allow overriding how to find the list for rare usage scenarios (#7715)
	_getList: function() {
		return this.element.find( "ol,ul" ).eq( 0 );
	},

	_createPanel: function( id ) {
		return $( "<div>" )
			.attr( "id", id )
			.addClass( "ui-tabs-panel ui-widget-content ui-corner-bottom" )
			.data( "ui-tabs-destroy", true );
	},

	_setupDisabled: function( disabled ) {
		if ( $.isArray( disabled ) ) {
			if ( !disabled.length ) {
				disabled = false;
			} else if ( disabled.length === this.anchors.length ) {
				disabled = true;
			}
		}

		// disable tabs
		for ( var i = 0, li; ( li = this.tabs[ i ] ); i++ ) {
			if ( disabled === true || $.inArray( i, disabled ) !== -1 ) {
				$( li )
					.addClass( "ui-state-disabled" )
					.attr( "aria-disabled", "true" );
			} else {
				$( li )
					.removeClass( "ui-state-disabled" )
					.removeAttr( "aria-disabled" );
			}
		}

		this.options.disabled = disabled;
	},

	_setupEvents: function( event ) {
		var events = {
			click: function( event ) {
				event.preventDefault();
			}
		};
		if ( event ) {
			$.each( event.split(" "), function( index, eventName ) {
				events[ eventName ] = "_eventHandler";
			});
		}

		this._off( this.anchors.add( this.tabs ).add( this.panels ) );
		this._on( this.anchors, events );
		this._on( this.tabs, { keydown: "_tabKeydown" } );
		this._on( this.panels, { keydown: "_panelKeydown" } );

		this._focusable( this.tabs );
		this._hoverable( this.tabs );
	},

	_setupHeightStyle: function( heightStyle ) {
		var maxHeight,
			parent = this.element.parent();

		if ( heightStyle === "fill" ) {
			maxHeight = parent.height();
			maxHeight -= this.element.outerHeight() - this.element.height();

			this.element.siblings( ":visible" ).each(function() {
				var elem = $( this ),
					position = elem.css( "position" );

				if ( position === "absolute" || position === "fixed" ) {
					return;
				}
				maxHeight -= elem.outerHeight( true );
			});

			this.element.children().not( this.panels ).each(function() {
				maxHeight -= $( this ).outerHeight( true );
			});

			this.panels.each(function() {
				$( this ).height( Math.max( 0, maxHeight -
					$( this ).innerHeight() + $( this ).height() ) );
			})
			.css( "overflow", "auto" );
		} else if ( heightStyle === "auto" ) {
			maxHeight = 0;
			this.panels.each(function() {
				maxHeight = Math.max( maxHeight, $( this ).height( "" ).height() );
			}).height( maxHeight );
		}
	},

	_eventHandler: function( event ) {
		var options = this.options,
			active = this.active,
			anchor = $( event.currentTarget ),
			tab = anchor.closest( "li" ),
			clickedIsActive = tab[ 0 ] === active[ 0 ],
			collapsing = clickedIsActive && options.collapsible,
			toShow = collapsing ? $() : this._getPanelForTab( tab ),
			toHide = !active.length ? $() : this._getPanelForTab( active ),
			eventData = {
				oldTab: active,
				oldPanel: toHide,
				newTab: collapsing ? $() : tab,
				newPanel: toShow
			};

		event.preventDefault();

		if ( tab.hasClass( "ui-state-disabled" ) ||
				// tab is already loading
				tab.hasClass( "ui-tabs-loading" ) ||
				// can't switch durning an animation
				this.running ||
				// click on active header, but not collapsible
				( clickedIsActive && !options.collapsible ) ||
				// allow canceling activation
				( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
			return;
		}

		options.active = collapsing ? false : this.tabs.index( tab );

		this.active = clickedIsActive ? $() : tab;
		if ( this.xhr ) {
			this.xhr.abort();
		}

		if ( !toHide.length && !toShow.length ) {
			$.error( "jQuery UI Tabs: Mismatching fragment identifier." );
		}

		if ( toShow.length ) {
			this.load( this.tabs.index( tab ), event );
		}
		this._toggle( event, eventData );
	},

	// handles show/hide for selecting tabs
	_toggle: function( event, eventData ) {
		var that = this,
			toShow = eventData.newPanel,
			toHide = eventData.oldPanel;

		this.running = true;

		function complete() {
			that.running = false;
			that._trigger( "activate", event, eventData );
		}

		function show() {
			eventData.newTab.closest( "li" ).addClass( "ui-tabs-active ui-state-active" );

			if ( toShow.length && that.options.show ) {
				that._show( toShow, that.options.show, complete );
			} else {
				toShow.show();
				complete();
			}
		}

		// start out by hiding, then showing, then completing
		if ( toHide.length && this.options.hide ) {
			this._hide( toHide, this.options.hide, function() {
				eventData.oldTab.closest( "li" ).removeClass( "ui-tabs-active ui-state-active" );
				show();
			});
		} else {
			eventData.oldTab.closest( "li" ).removeClass( "ui-tabs-active ui-state-active" );
			toHide.hide();
			show();
		}

		toHide.attr({
			"aria-expanded": "false",
			"aria-hidden": "true"
		});
		eventData.oldTab.attr( "aria-selected", "false" );
		// If we're switching tabs, remove the old tab from the tab order.
		// If we're opening from collapsed state, remove the previous tab from the tab order.
		// If we're collapsing, then keep the collapsing tab in the tab order.
		if ( toShow.length && toHide.length ) {
			eventData.oldTab.attr( "tabIndex", -1 );
		} else if ( toShow.length ) {
			this.tabs.filter(function() {
				return $( this ).attr( "tabIndex" ) === 0;
			})
			.attr( "tabIndex", -1 );
		}

		toShow.attr({
			"aria-expanded": "true",
			"aria-hidden": "false"
		});
		eventData.newTab.attr({
			"aria-selected": "true",
			tabIndex: 0
		});
	},

	_activate: function( index ) {
		var anchor,
			active = this._findActive( index );

		// trying to activate the already active panel
		if ( active[ 0 ] === this.active[ 0 ] ) {
			return;
		}

		// trying to collapse, simulate a click on the current active header
		if ( !active.length ) {
			active = this.active;
		}

		anchor = active.find( ".ui-tabs-anchor" )[ 0 ];
		this._eventHandler({
			target: anchor,
			currentTarget: anchor,
			preventDefault: $.noop
		});
	},

	_findActive: function( index ) {
		return index === false ? $() : this.tabs.eq( index );
	},

	_getIndex: function( index ) {
		// meta-function to give users option to provide a href string instead of a numerical index.
		if ( typeof index === "string" ) {
			index = this.anchors.index( this.anchors.filter( "[href$='" + index + "']" ) );
		}

		return index;
	},

	_destroy: function() {
		if ( this.xhr ) {
			this.xhr.abort();
		}

		this.element.removeClass( "ui-tabs ui-widget ui-widget-content ui-corner-all ui-tabs-collapsible" );

		this.tablist
			.removeClass( "ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all" )
			.removeAttr( "role" );

		this.anchors
			.removeClass( "ui-tabs-anchor" )
			.removeAttr( "role" )
			.removeAttr( "tabIndex" )
			.removeUniqueId();

		this.tabs.add( this.panels ).each(function() {
			if ( $.data( this, "ui-tabs-destroy" ) ) {
				$( this ).remove();
			} else {
				$( this )
					.removeClass( "ui-state-default ui-state-active ui-state-disabled " +
						"ui-corner-top ui-corner-bottom ui-widget-content ui-tabs-active ui-tabs-panel" )
					.removeAttr( "tabIndex" )
					.removeAttr( "aria-live" )
					.removeAttr( "aria-busy" )
					.removeAttr( "aria-selected" )
					.removeAttr( "aria-labelledby" )
					.removeAttr( "aria-hidden" )
					.removeAttr( "aria-expanded" )
					.removeAttr( "role" );
			}
		});

		this.tabs.each(function() {
			var li = $( this ),
				prev = li.data( "ui-tabs-aria-controls" );
			if ( prev ) {
				li
					.attr( "aria-controls", prev )
					.removeData( "ui-tabs-aria-controls" );
			} else {
				li.removeAttr( "aria-controls" );
			}
		});

		this.panels.show();

		if ( this.options.heightStyle !== "content" ) {
			this.panels.css( "height", "" );
		}
	},

	enable: function( index ) {
		var disabled = this.options.disabled;
		if ( disabled === false ) {
			return;
		}

		if ( index === undefined ) {
			disabled = false;
		} else {
			index = this._getIndex( index );
			if ( $.isArray( disabled ) ) {
				disabled = $.map( disabled, function( num ) {
					return num !== index ? num : null;
				});
			} else {
				disabled = $.map( this.tabs, function( li, num ) {
					return num !== index ? num : null;
				});
			}
		}
		this._setupDisabled( disabled );
	},

	disable: function( index ) {
		var disabled = this.options.disabled;
		if ( disabled === true ) {
			return;
		}

		if ( index === undefined ) {
			disabled = true;
		} else {
			index = this._getIndex( index );
			if ( $.inArray( index, disabled ) !== -1 ) {
				return;
			}
			if ( $.isArray( disabled ) ) {
				disabled = $.merge( [ index ], disabled ).sort();
			} else {
				disabled = [ index ];
			}
		}
		this._setupDisabled( disabled );
	},

	load: function( index, event ) {
		index = this._getIndex( index );
		var that = this,
			tab = this.tabs.eq( index ),
			anchor = tab.find( ".ui-tabs-anchor" ),
			panel = this._getPanelForTab( tab ),
			eventData = {
				tab: tab,
				panel: panel
			};

		// not remote
		if ( isLocal( anchor[ 0 ] ) ) {
			return;
		}

		this.xhr = $.ajax( this._ajaxSettings( anchor, event, eventData ) );

		// support: jQuery <1.8
		// jQuery <1.8 returns false if the request is canceled in beforeSend,
		// but as of 1.8, $.ajax() always returns a jqXHR object.
		if ( this.xhr && this.xhr.statusText !== "canceled" ) {
			tab.addClass( "ui-tabs-loading" );
			panel.attr( "aria-busy", "true" );

			this.xhr
				.success(function( response ) {
					// support: jQuery <1.8
					// http://bugs.jquery.com/ticket/11778
					setTimeout(function() {
						panel.html( response );
						that._trigger( "load", event, eventData );
					}, 1 );
				})
				.complete(function( jqXHR, status ) {
					// support: jQuery <1.8
					// http://bugs.jquery.com/ticket/11778
					setTimeout(function() {
						if ( status === "abort" ) {
							that.panels.stop( false, true );
						}

						tab.removeClass( "ui-tabs-loading" );
						panel.removeAttr( "aria-busy" );

						if ( jqXHR === that.xhr ) {
							delete that.xhr;
						}
					}, 1 );
				});
		}
	},

	_ajaxSettings: function( anchor, event, eventData ) {
		var that = this;
		return {
			url: anchor.attr( "href" ),
			beforeSend: function( jqXHR, settings ) {
				return that._trigger( "beforeLoad", event,
					$.extend( { jqXHR : jqXHR, ajaxSettings: settings }, eventData ) );
			}
		};
	},

	_getPanelForTab: function( tab ) {
		var id = $( tab ).attr( "aria-controls" );
		return this.element.find( this._sanitizeSelector( "#" + id ) );
	}
});

})( jQuery );

(function( $ ) {

var increments = 0;

function addDescribedBy( elem, id ) {
	var describedby = (elem.attr( "aria-describedby" ) || "").split( /\s+/ );
	describedby.push( id );
	elem
		.data( "ui-tooltip-id", id )
		.attr( "aria-describedby", $.trim( describedby.join( " " ) ) );
}

function removeDescribedBy( elem ) {
	var id = elem.data( "ui-tooltip-id" ),
		describedby = (elem.attr( "aria-describedby" ) || "").split( /\s+/ ),
		index = $.inArray( id, describedby );
	if ( index !== -1 ) {
		describedby.splice( index, 1 );
	}

	elem.removeData( "ui-tooltip-id" );
	describedby = $.trim( describedby.join( " " ) );
	if ( describedby ) {
		elem.attr( "aria-describedby", describedby );
	} else {
		elem.removeAttr( "aria-describedby" );
	}
}

$.widget( "ui.tooltip", {
	version: "1.10.3",
	options: {
		content: function() {
			// support: IE<9, Opera in jQuery <1.7
			// .text() can't accept undefined, so coerce to a string
			var title = $( this ).attr( "title" ) || "";
			// Escape title, since we're going from an attribute to raw HTML
			return $( "<a>" ).text( title ).html();
		},
		hide: true,
		// Disabled elements have inconsistent behavior across browsers (#8661)
		items: "[title]:not([disabled])",
		position: {
			my: "left top+15",
			at: "left bottom",
			collision: "flipfit flip"
		},
		show: true,
		tooltipClass: null,
		track: false,

		// callbacks
		close: null,
		open: null
	},

	_create: function() {
		this._on({
			mouseover: "open",
			focusin: "open"
		});

		// IDs of generated tooltips, needed for destroy
		this.tooltips = {};
		// IDs of parent tooltips where we removed the title attribute
		this.parents = {};

		if ( this.options.disabled ) {
			this._disable();
		}
	},

	_setOption: function( key, value ) {
		var that = this;

		if ( key === "disabled" ) {
			this[ value ? "_disable" : "_enable" ]();
			this.options[ key ] = value;
			// disable element style changes
			return;
		}

		this._super( key, value );

		if ( key === "content" ) {
			$.each( this.tooltips, function( id, element ) {
				that._updateContent( element );
			});
		}
	},

	_disable: function() {
		var that = this;

		// close open tooltips
		$.each( this.tooltips, function( id, element ) {
			var event = $.Event( "blur" );
			event.target = event.currentTarget = element[0];
			that.close( event, true );
		});

		// remove title attributes to prevent native tooltips
		this.element.find( this.options.items ).addBack().each(function() {
			var element = $( this );
			if ( element.is( "[title]" ) ) {
				element
					.data( "ui-tooltip-title", element.attr( "title" ) )
					.attr( "title", "" );
			}
		});
	},

	_enable: function() {
		// restore title attributes
		this.element.find( this.options.items ).addBack().each(function() {
			var element = $( this );
			if ( element.data( "ui-tooltip-title" ) ) {
				element.attr( "title", element.data( "ui-tooltip-title" ) );
			}
		});
	},

	open: function( event ) {
		var that = this,
			target = $( event ? event.target : this.element )
				// we need closest here due to mouseover bubbling,
				// but always pointing at the same event target
				.closest( this.options.items );

		// No element to show a tooltip for or the tooltip is already open
		if ( !target.length || target.data( "ui-tooltip-id" ) ) {
			return;
		}

		if ( target.attr( "title" ) ) {
			target.data( "ui-tooltip-title", target.attr( "title" ) );
		}

		target.data( "ui-tooltip-open", true );

		// kill parent tooltips, custom or native, for hover
		if ( event && event.type === "mouseover" ) {
			target.parents().each(function() {
				var parent = $( this ),
					blurEvent;
				if ( parent.data( "ui-tooltip-open" ) ) {
					blurEvent = $.Event( "blur" );
					blurEvent.target = blurEvent.currentTarget = this;
					that.close( blurEvent, true );
				}
				if ( parent.attr( "title" ) ) {
					parent.uniqueId();
					that.parents[ this.id ] = {
						element: this,
						title: parent.attr( "title" )
					};
					parent.attr( "title", "" );
				}
			});
		}

		this._updateContent( target, event );
	},

	_updateContent: function( target, event ) {
		var content,
			contentOption = this.options.content,
			that = this,
			eventType = event ? event.type : null;

		if ( typeof contentOption === "string" ) {
			return this._open( event, target, contentOption );
		}

		content = contentOption.call( target[0], function( response ) {
			// ignore async response if tooltip was closed already
			if ( !target.data( "ui-tooltip-open" ) ) {
				return;
			}
			// IE may instantly serve a cached response for ajax requests
			// delay this call to _open so the other call to _open runs first
			that._delay(function() {
				// jQuery creates a special event for focusin when it doesn't
				// exist natively. To improve performance, the native event
				// object is reused and the type is changed. Therefore, we can't
				// rely on the type being correct after the event finished
				// bubbling, so we set it back to the previous value. (#8740)
				if ( event ) {
					event.type = eventType;
				}
				this._open( event, target, response );
			});
		});
		if ( content ) {
			this._open( event, target, content );
		}
	},

	_open: function( event, target, content ) {
		var tooltip, events, delayedShow,
			positionOption = $.extend( {}, this.options.position );

		if ( !content ) {
			return;
		}

		// Content can be updated multiple times. If the tooltip already
		// exists, then just update the content and bail.
		tooltip = this._find( target );
		if ( tooltip.length ) {
			tooltip.find( ".ui-tooltip-content" ).html( content );
			return;
		}

		// if we have a title, clear it to prevent the native tooltip
		// we have to check first to avoid defining a title if none exists
		// (we don't want to cause an element to start matching [title])
		//
		// We use removeAttr only for key events, to allow IE to export the correct
		// accessible attributes. For mouse events, set to empty string to avoid
		// native tooltip showing up (happens only when removing inside mouseover).
		if ( target.is( "[title]" ) ) {
			if ( event && event.type === "mouseover" ) {
				target.attr( "title", "" );
			} else {
				target.removeAttr( "title" );
			}
		}

		tooltip = this._tooltip( target );
		addDescribedBy( target, tooltip.attr( "id" ) );
		tooltip.find( ".ui-tooltip-content" ).html( content );

		function position( event ) {
			positionOption.of = event;
			if ( tooltip.is( ":hidden" ) ) {
				return;
			}
			tooltip.position( positionOption );
		}
		if ( this.options.track && event && /^mouse/.test( event.type ) ) {
			this._on( this.document, {
				mousemove: position
			});
			// trigger once to override element-relative positioning
			position( event );
		} else {
			tooltip.position( $.extend({
				of: target
			}, this.options.position ) );
		}

		tooltip.hide();

		this._show( tooltip, this.options.show );
		// Handle tracking tooltips that are shown with a delay (#8644). As soon
		// as the tooltip is visible, position the tooltip using the most recent
		// event.
		if ( this.options.show && this.options.show.delay ) {
			delayedShow = this.delayedShow = setInterval(function() {
				if ( tooltip.is( ":visible" ) ) {
					position( positionOption.of );
					clearInterval( delayedShow );
				}
			}, $.fx.interval );
		}

		this._trigger( "open", event, { tooltip: tooltip } );

		events = {
			keyup: function( event ) {
				if ( event.keyCode === $.ui.keyCode.ESCAPE ) {
					var fakeEvent = $.Event(event);
					fakeEvent.currentTarget = target[0];
					this.close( fakeEvent, true );
				}
			},
			remove: function() {
				this._removeTooltip( tooltip );
			}
		};
		if ( !event || event.type === "mouseover" ) {
			events.mouseleave = "close";
		}
		if ( !event || event.type === "focusin" ) {
			events.focusout = "close";
		}
		this._on( true, target, events );
	},

	close: function( event ) {
		var that = this,
			target = $( event ? event.currentTarget : this.element ),
			tooltip = this._find( target );

		// disabling closes the tooltip, so we need to track when we're closing
		// to avoid an infinite loop in case the tooltip becomes disabled on close
		if ( this.closing ) {
			return;
		}

		// Clear the interval for delayed tracking tooltips
		clearInterval( this.delayedShow );

		// only set title if we had one before (see comment in _open())
		if ( target.data( "ui-tooltip-title" ) ) {
			target.attr( "title", target.data( "ui-tooltip-title" ) );
		}

		removeDescribedBy( target );

		tooltip.stop( true );
		this._hide( tooltip, this.options.hide, function() {
			that._removeTooltip( $( this ) );
		});

		target.removeData( "ui-tooltip-open" );
		this._off( target, "mouseleave focusout keyup" );
		// Remove 'remove' binding only on delegated targets
		if ( target[0] !== this.element[0] ) {
			this._off( target, "remove" );
		}
		this._off( this.document, "mousemove" );

		if ( event && event.type === "mouseleave" ) {
			$.each( this.parents, function( id, parent ) {
				$( parent.element ).attr( "title", parent.title );
				delete that.parents[ id ];
			});
		}

		this.closing = true;
		this._trigger( "close", event, { tooltip: tooltip } );
		this.closing = false;
	},

	_tooltip: function( element ) {
		var id = "ui-tooltip-" + increments++,
			tooltip = $( "<div>" )
				.attr({
					id: id,
					role: "tooltip"
				})
				.addClass( "ui-tooltip ui-widget ui-corner-all ui-widget-content " +
					( this.options.tooltipClass || "" ) );
		$( "<div>" )
			.addClass( "ui-tooltip-content" )
			.appendTo( tooltip );
		tooltip.appendTo( this.document[0].body );
		this.tooltips[ id ] = element;
		return tooltip;
	},

	_find: function( target ) {
		var id = target.data( "ui-tooltip-id" );
		return id ? $( "#" + id ) : $();
	},

	_removeTooltip: function( tooltip ) {
		tooltip.remove();
		delete this.tooltips[ tooltip.attr( "id" ) ];
	},

	_destroy: function() {
		var that = this;

		// close open tooltips
		$.each( this.tooltips, function( id, element ) {
			// Delegate to close method to handle common cleanup
			var event = $.Event( "blur" );
			event.target = event.currentTarget = element[0];
			that.close( event, true );

			// Remove immediately; destroying an open tooltip doesn't use the
			// hide animation
			$( "#" + id ).remove();

			// Restore the title
			if ( element.data( "ui-tooltip-title" ) ) {
				element.attr( "title", element.data( "ui-tooltip-title" ) );
				element.removeData( "ui-tooltip-title" );
			}
		});
	}
});

}( jQuery ) );


/***/ }),

/***/ 39:
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(jQuery) {/*** IMPORTS FROM imports-loader ***/
(function() {

(function(window, $) {
    'use strict';

    // Builds a 4 characters unique id
    var uniqId = function(prefix) {
        prefix = prefix || '';

        return prefix + ("0000" + (Math.random() * Math.pow(36, 4) << 0).toString(36)).substr(-4);
    };

    // Builds query parameters from a geoname object
    var RequestDataBuilder = function(geo, datas) {
        this.datas = datas || {};

        if (!geo instanceof GeotoCompleter) {
           throw 'You must provide an instance of GeotoCompleter';
        }

        if (geo.getOption('sort')) {
            this.datas.sort = geo.getOption('sort');
        }
        if (geo.getOption('client-ip')) {
            this.datas.sortParams = geo.getOption('sortParams');
        }
        if (geo.getOption('country')) {
            this.datas.country = geo.getOption('country');
        }
        if (geo.getOption('name')) {
            this.datas.name = geo.getOption('name');
        }
        if (geo.getOption('limit')) {
            this.datas.limit = geo.getOption('limit');
        }
    };

    RequestDataBuilder.prototype.getRequestDatas = function() {
        return this.datas;
    };

    // Handles request to the remote Geonames Server
    var RequestManager = function(server) {
        var _request = false;
        var _endpoint = server;

        this.search = function(resource, datas, errorCallback, parseresults) {
            _request = $.ajax({
                type: "GET",
                dataType: "jsonp",
                jsonpCallback: "parseresults",
                url: _endpoint + resource,
                beforeSend: function() {
                    if (_request && typeof _request.abort === 'function') {
                        _request.abort();
                    }
                },
                error: errorCallback,
                data: datas
            })
            .done(parseresults)
            .always(function() {
                _request = false;
            });
        };
    };

    var GeotoCompleter = function(el, serverEndpoint, options) {
        if (typeof $.ui === 'undefined') {
            throw 'jQuery UI must be loaded';
        }

        if($(el).data('geocompleter')) {
            return $(el).data('geocompleter');
        }

        var _serverEndpoint = serverEndpoint.substr(serverEndpoint.length - 1) === '/' ? serverEndpoint : serverEndpoint + '/';

        this._requestManager = new RequestManager(_serverEndpoint);

        this.$el = $(el);

        this._opts = $.extend({
            "name": null,
            "sort": null,
            "client-ip": null,
            "country": null,
            "limit": null,
            "init-input": true
        }, options);

        this.$input = null;

        this.$el.data('geocompleter', this);
    };

    GeotoCompleter.prototype.getOption = function(name) {
        if (!(name in this._opts)) {
            return null;
        }

        return this._opts[name];
    };

    GeotoCompleter.prototype.setOption = function(name, value) {
        if (!(name in this._opts)) {
            return this;
        }

        this._opts[name] = value;

        return this;
    };

    GeotoCompleter.prototype.getAutocompleter = function() {
        return this.$input;
    };

    GeotoCompleter.prototype.destroy = function() {
        if (this.$input) {
            this.$input.remove();
            this.$el.show();
            this.$el.val('');
            this.$el.data('geocompleter', null);
        }
    };

    GeotoCompleter.prototype.init = function() {
        if (null !== this.$input) {
            return;
        }

        var self = this;

        var updateGeonameField = function(value) {
            self.$el.val(value);
        };

        var updateCityField = function(value) {
            self.$input.val(value);
        };

        var resetGeonameField = function() {
            self.$el.val('');
        };

        var resetCityField = function() {
            self.$input.val('');
        };

        var isGeonameFieldSetted = function() {
            return self.$el.val() !== '';
        };

        var highlight = function (s, t) {
            var matcher = new RegExp("("+$.ui.autocomplete.escapeRegex(t)+")", "ig" );
            return s.replace(matcher, "<span class='ui-state-highlight'>$1</span>");
        };

        // Creates city input
        this.$input = $('<input />')
                .attr('name', uniqId(this.$el.attr('name')))
                .attr('id', uniqId(this.$el.attr('id')))
                .attr('type', 'text')
                .attr('class', this.$el.attr('class'))
                .addClass("geocompleter-input");

        // Prevents form submission when pressing ENTER
        this.$input.keypress(function(event) {
            var code = (event.keyCode ? event.keyCode : event.which);
            if(code === $.ui.keyCode.ENTER ) {
                event.preventDefault();
                return false;
            }
        });

        // On any keyup except (esc, up, down, enter) fields are desynchronised, reset geonames field
        this.$input.keyup(function(event) {
            var code = (event.keyCode ? event.keyCode : event.which);
            var unBindKeys = [
                $.ui.keyCode.ESCAPE,
                $.ui.keyCode.UP,
                $.ui.keyCode.DOWN,
                $.ui.keyCode.LEFT,
                $.ui.keyCode.RIGHT,
                $.ui.keyCode.ENTER
            ];

            if (-1 === $.inArray(code, unBindKeys)){
                resetGeonameField();
            }
        });

        this.$el.hide();
        this.$el.after(this.$input);

        // Overrides prototype to render values without autoescape, useful to highlight values
        $.ui.autocomplete.prototype._renderItem = function( ul, item) {
            return $( "<li></li>" )
              .data( "item.autocomplete", item )
              .append( $( "<a></a>" ).html( item.label ) )
              .appendTo( ul );
        };

        // Saves response content
        var responseContent;

        // Builds a jquery autocompleter
        this.$input.autocomplete({
            create: function(event) {
                if(self.$el.val() !== "" && self.getOption("init-input")) {
                    self._requestManager.search(
                        "city/" + parseInt(self.$el.val(), 10),
                        {},
                        function(jqXhr, status, error) {
                            return;
                        }, function (data) {
                            var country = data.country.name || "";
                            self.$input.val(data.name + ("" !== country ? "," + country : ""));
                        }
                    );
                }
            },
            source: function(request, response) {
                var name, country, terms = '';

                terms = request.term.split(',');

                if (terms.length === 2) {
                    country = terms.pop();
                }

                name = terms.pop();

                self.setOption('name', $.trim(name));
                self.setOption('country', $.trim(country));

                var requestDataBuilder = new RequestDataBuilder(self);

                self._requestManager.search(
                    "city",
                    requestDataBuilder.getRequestDatas(),
                    function(jqXhr, status, error) {
                        if (jqXhr.status !== 0 && jqXhr.statusText !== 'abort') {
                            response([]);
                            self.$input.trigger('geotocompleter.request.error', [jqXhr, status, error]);
                        }
                    }, function(data) {
                        response($.map(data || [], function(item) {
                            var country = country ? country : name;
                            var labelName = highlight(item.name, name);
                            var labelCountry = highlight((item.country ? item.country.name || '' : ''), country);
                            var labelRegion = highlight((item.region ? item.region.name || '' : ''), name);

                            return {
                                label:  labelName + ("" !== labelCountry ? ", " + labelCountry : "") + ("" !== labelRegion ? " <span class='region'>" + labelRegion + "</span>" : ""),
                                value: item.name + (item.country ? ", " + item.country.name : ''),
                                geonameid: item.geonameid
                            };
                        }));
                    }
                );
            },
            messages: {
                noResults: '',
                results: function() {}
            },
            response: function (event, ui) {
                responseContent = [];
                if (ui.content) {
                    responseContent = ui.content;
                    // Sets geoname id if values are re synchronized
                    if (ui.content.length > 0) {
                        var items = $.grep(ui.content, function(item) {
                            return item.value === self.$input.val() ? item : null;
                        });

                        if (items.length > 0) {
                            updateGeonameField(items[0].geonameid);
                        }
                    }
                }
            },
            select: function(event, ui) {
                if (ui.item) {
                    updateGeonameField(ui.item.geonameid);
                }
            },
            focus: function (event, ui) {
                var code = (event.keyCode ? event.keyCode : event.which);
                // Updates geoname ID only if key up and key down are pressed
                if (ui.item && -1 !== $.inArray(code, [$.ui.keyCode.DOWN, $.ui.keyCode.UP])) {
                    updateGeonameField(ui.item.geonameid);
                }
            },
            close : function (event, ui) {
                var ev = event.originalEvent;

                if ("undefined" === typeof ev) {
                    return false;
                }

                var code = (ev.keyCode ? ev.keyCode : ev.which);
                // If esc key is pressed or user leaves the input
                if ((ev.type === "keydown" && code === $.ui.keyCode.ESCAPE) || ev.type === "blur") {
                    if (isGeonameFieldSetted() && responseContent.length > 0) {
                        var geonameId = self.$el.val();
                        // Update city input according to the setted geonameId
                        var responseValues = $.grep(responseContent, function(item) {
                            return item.geonameid === geonameId ? item : null;
                        });

                        if (responseValues.length > 0) {
                            self.$input.val(responseValues[0].value);
                        }

                        return false;
                    }

                    // Resets both field as nothing is no more sychronized
                    resetGeonameField();
                    resetCityField();
                }
            }
        }).autocomplete("widget").addClass("geocompleter-menu");

        var onInit = self.getOption('onInit');

        // On Initialization callback
        if (onInit !== null && typeof onInit === 'function') {
            onInit(this.$el, this.$input);
        }
    };

    var methods = {
        init: function(options) {
            var settings = $.extend({
                server: ''
            }, options);

            if ('' === settings.server) {
                throw '"server" must be set';
            }

            return this.each(function() {
                var geocompleter = new GeotoCompleter(this, settings.server, settings);
                geocompleter.init();
            });
        },
        destroy: function() {
            return this.each(function() {
                var geocompleter = $(this).data('geocompleter');
                if (geocompleter) {
                    geocompleter.destroy();
                }
            });
        },
        autocompleter: function() {
            var args = arguments;
            return this.each(function() {
                var geocompleter = $(this).data('geocompleter');
                if (args[0] === "on" && typeof args[1] === "string" && typeof args[2] === "function") {
                    // Bind addition events
                    geocompleter.getAutocompleter().on(args[1], args[2]);
                } else {
                    $.fn.autocomplete.apply(geocompleter.getAutocompleter(),args);
                }
            });
        }
    };

    $.fn.geocompleter = function(method) {
        if (methods[method]) {
            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if (typeof method === 'object' || !method) {
            return methods.init.apply(this, arguments);
        } else {
            $.error('Method ' + method + ' does not exist on jQuery.geocompleter');
        }
    };
})(window, jQuery);

}.call(window));
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(0)))

/***/ }),

/***/ 4:
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global, module) {/**
 * Lodash (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */

/** Used as the size to enable large array optimizations. */
var LARGE_ARRAY_SIZE = 200;

/** Used to stand-in for `undefined` hash values. */
var HASH_UNDEFINED = '__lodash_hash_undefined__';

/** Used to detect hot functions by number of calls within a span of milliseconds. */
var HOT_COUNT = 800,
    HOT_SPAN = 16;

/** Used as references for various `Number` constants. */
var MAX_SAFE_INTEGER = 9007199254740991;

/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
    arrayTag = '[object Array]',
    asyncTag = '[object AsyncFunction]',
    boolTag = '[object Boolean]',
    dateTag = '[object Date]',
    errorTag = '[object Error]',
    funcTag = '[object Function]',
    genTag = '[object GeneratorFunction]',
    mapTag = '[object Map]',
    numberTag = '[object Number]',
    nullTag = '[object Null]',
    objectTag = '[object Object]',
    proxyTag = '[object Proxy]',
    regexpTag = '[object RegExp]',
    setTag = '[object Set]',
    stringTag = '[object String]',
    undefinedTag = '[object Undefined]',
    weakMapTag = '[object WeakMap]';

var arrayBufferTag = '[object ArrayBuffer]',
    dataViewTag = '[object DataView]',
    float32Tag = '[object Float32Array]',
    float64Tag = '[object Float64Array]',
    int8Tag = '[object Int8Array]',
    int16Tag = '[object Int16Array]',
    int32Tag = '[object Int32Array]',
    uint8Tag = '[object Uint8Array]',
    uint8ClampedTag = '[object Uint8ClampedArray]',
    uint16Tag = '[object Uint16Array]',
    uint32Tag = '[object Uint32Array]';

/**
 * Used to match `RegExp`
 * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
 */
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;

/** Used to detect host constructors (Safari). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;

/** Used to detect unsigned integer values. */
var reIsUint = /^(?:0|[1-9]\d*)$/;

/** Used to identify `toStringTag` values of typed arrays. */
var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
typedArrayTags[errorTag] = typedArrayTags[funcTag] =
typedArrayTags[mapTag] = typedArrayTags[numberTag] =
typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
typedArrayTags[setTag] = typedArrayTags[stringTag] =
typedArrayTags[weakMapTag] = false;

/** Detect free variable `global` from Node.js. */
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

/** Detect free variable `self`. */
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || Function('return this')();

/** Detect free variable `exports`. */
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

/** Detect free variable `module`. */
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

/** Detect the popular CommonJS extension `module.exports`. */
var moduleExports = freeModule && freeModule.exports === freeExports;

/** Detect free variable `process` from Node.js. */
var freeProcess = moduleExports && freeGlobal.process;

/** Used to access faster Node.js helpers. */
var nodeUtil = (function() {
  try {
    // Use `util.types` for Node.js 10+.
    var types = freeModule && freeModule.require && freeModule.require('util').types;

    if (types) {
      return types;
    }

    // Legacy `process.binding('util')` for Node.js < 10.
    return freeProcess && freeProcess.binding && freeProcess.binding('util');
  } catch (e) {}
}());

/* Node.js helper references. */
var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

/**
 * A faster alternative to `Function#apply`, this function invokes `func`
 * with the `this` binding of `thisArg` and the arguments of `args`.
 *
 * @private
 * @param {Function} func The function to invoke.
 * @param {*} thisArg The `this` binding of `func`.
 * @param {Array} args The arguments to invoke `func` with.
 * @returns {*} Returns the result of `func`.
 */
function apply(func, thisArg, args) {
  switch (args.length) {
    case 0: return func.call(thisArg);
    case 1: return func.call(thisArg, args[0]);
    case 2: return func.call(thisArg, args[0], args[1]);
    case 3: return func.call(thisArg, args[0], args[1], args[2]);
  }
  return func.apply(thisArg, args);
}

/**
 * The base implementation of `_.times` without support for iteratee shorthands
 * or max array length checks.
 *
 * @private
 * @param {number} n The number of times to invoke `iteratee`.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array} Returns the array of results.
 */
function baseTimes(n, iteratee) {
  var index = -1,
      result = Array(n);

  while (++index < n) {
    result[index] = iteratee(index);
  }
  return result;
}

/**
 * The base implementation of `_.unary` without support for storing metadata.
 *
 * @private
 * @param {Function} func The function to cap arguments for.
 * @returns {Function} Returns the new capped function.
 */
function baseUnary(func) {
  return function(value) {
    return func(value);
  };
}

/**
 * Gets the value at `key` of `object`.
 *
 * @private
 * @param {Object} [object] The object to query.
 * @param {string} key The key of the property to get.
 * @returns {*} Returns the property value.
 */
function getValue(object, key) {
  return object == null ? undefined : object[key];
}

/**
 * Creates a unary function that invokes `func` with its argument transformed.
 *
 * @private
 * @param {Function} func The function to wrap.
 * @param {Function} transform The argument transform.
 * @returns {Function} Returns the new function.
 */
function overArg(func, transform) {
  return function(arg) {
    return func(transform(arg));
  };
}

/** Used for built-in method references. */
var arrayProto = Array.prototype,
    funcProto = Function.prototype,
    objectProto = Object.prototype;

/** Used to detect overreaching core-js shims. */
var coreJsData = root['__core-js_shared__'];

/** Used to resolve the decompiled source of functions. */
var funcToString = funcProto.toString;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/** Used to detect methods masquerading as native. */
var maskSrcKey = (function() {
  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
  return uid ? ('Symbol(src)_1.' + uid) : '';
}());

/**
 * Used to resolve the
 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
 * of values.
 */
var nativeObjectToString = objectProto.toString;

/** Used to infer the `Object` constructor. */
var objectCtorString = funcToString.call(Object);

/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);

/** Built-in value references. */
var Buffer = moduleExports ? root.Buffer : undefined,
    Symbol = root.Symbol,
    Uint8Array = root.Uint8Array,
    allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
    getPrototype = overArg(Object.getPrototypeOf, Object),
    objectCreate = Object.create,
    propertyIsEnumerable = objectProto.propertyIsEnumerable,
    splice = arrayProto.splice,
    symToStringTag = Symbol ? Symbol.toStringTag : undefined;

var defineProperty = (function() {
  try {
    var func = getNative(Object, 'defineProperty');
    func({}, '', {});
    return func;
  } catch (e) {}
}());

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
    nativeMax = Math.max,
    nativeNow = Date.now;

/* Built-in method references that are verified to be native. */
var Map = getNative(root, 'Map'),
    nativeCreate = getNative(Object, 'create');

/**
 * The base implementation of `_.create` without support for assigning
 * properties to the created object.
 *
 * @private
 * @param {Object} proto The object to inherit from.
 * @returns {Object} Returns the new object.
 */
var baseCreate = (function() {
  function object() {}
  return function(proto) {
    if (!isObject(proto)) {
      return {};
    }
    if (objectCreate) {
      return objectCreate(proto);
    }
    object.prototype = proto;
    var result = new object;
    object.prototype = undefined;
    return result;
  };
}());

/**
 * Creates a hash object.
 *
 * @private
 * @constructor
 * @param {Array} [entries] The key-value pairs to cache.
 */
function Hash(entries) {
  var index = -1,
      length = entries == null ? 0 : entries.length;

  this.clear();
  while (++index < length) {
    var entry = entries[index];
    this.set(entry[0], entry[1]);
  }
}

/**
 * Removes all key-value entries from the hash.
 *
 * @private
 * @name clear
 * @memberOf Hash
 */
function hashClear() {
  this.__data__ = nativeCreate ? nativeCreate(null) : {};
  this.size = 0;
}

/**
 * Removes `key` and its value from the hash.
 *
 * @private
 * @name delete
 * @memberOf Hash
 * @param {Object} hash The hash to modify.
 * @param {string} key The key of the value to remove.
 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
 */
function hashDelete(key) {
  var result = this.has(key) && delete this.__data__[key];
  this.size -= result ? 1 : 0;
  return result;
}

/**
 * Gets the hash value for `key`.
 *
 * @private
 * @name get
 * @memberOf Hash
 * @param {string} key The key of the value to get.
 * @returns {*} Returns the entry value.
 */
function hashGet(key) {
  var data = this.__data__;
  if (nativeCreate) {
    var result = data[key];
    return result === HASH_UNDEFINED ? undefined : result;
  }
  return hasOwnProperty.call(data, key) ? data[key] : undefined;
}

/**
 * Checks if a hash value for `key` exists.
 *
 * @private
 * @name has
 * @memberOf Hash
 * @param {string} key The key of the entry to check.
 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
 */
function hashHas(key) {
  var data = this.__data__;
  return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
}

/**
 * Sets the hash `key` to `value`.
 *
 * @private
 * @name set
 * @memberOf Hash
 * @param {string} key The key of the value to set.
 * @param {*} value The value to set.
 * @returns {Object} Returns the hash instance.
 */
function hashSet(key, value) {
  var data = this.__data__;
  this.size += this.has(key) ? 0 : 1;
  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
  return this;
}

// Add methods to `Hash`.
Hash.prototype.clear = hashClear;
Hash.prototype['delete'] = hashDelete;
Hash.prototype.get = hashGet;
Hash.prototype.has = hashHas;
Hash.prototype.set = hashSet;

/**
 * Creates an list cache object.
 *
 * @private
 * @constructor
 * @param {Array} [entries] The key-value pairs to cache.
 */
function ListCache(entries) {
  var index = -1,
      length = entries == null ? 0 : entries.length;

  this.clear();
  while (++index < length) {
    var entry = entries[index];
    this.set(entry[0], entry[1]);
  }
}

/**
 * Removes all key-value entries from the list cache.
 *
 * @private
 * @name clear
 * @memberOf ListCache
 */
function listCacheClear() {
  this.__data__ = [];
  this.size = 0;
}

/**
 * Removes `key` and its value from the list cache.
 *
 * @private
 * @name delete
 * @memberOf ListCache
 * @param {string} key The key of the value to remove.
 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
 */
function listCacheDelete(key) {
  var data = this.__data__,
      index = assocIndexOf(data, key);

  if (index < 0) {
    return false;
  }
  var lastIndex = data.length - 1;
  if (index == lastIndex) {
    data.pop();
  } else {
    splice.call(data, index, 1);
  }
  --this.size;
  return true;
}

/**
 * Gets the list cache value for `key`.
 *
 * @private
 * @name get
 * @memberOf ListCache
 * @param {string} key The key of the value to get.
 * @returns {*} Returns the entry value.
 */
function listCacheGet(key) {
  var data = this.__data__,
      index = assocIndexOf(data, key);

  return index < 0 ? undefined : data[index][1];
}

/**
 * Checks if a list cache value for `key` exists.
 *
 * @private
 * @name has
 * @memberOf ListCache
 * @param {string} key The key of the entry to check.
 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
 */
function listCacheHas(key) {
  return assocIndexOf(this.__data__, key) > -1;
}

/**
 * Sets the list cache `key` to `value`.
 *
 * @private
 * @name set
 * @memberOf ListCache
 * @param {string} key The key of the value to set.
 * @param {*} value The value to set.
 * @returns {Object} Returns the list cache instance.
 */
function listCacheSet(key, value) {
  var data = this.__data__,
      index = assocIndexOf(data, key);

  if (index < 0) {
    ++this.size;
    data.push([key, value]);
  } else {
    data[index][1] = value;
  }
  return this;
}

// Add methods to `ListCache`.
ListCache.prototype.clear = listCacheClear;
ListCache.prototype['delete'] = listCacheDelete;
ListCache.prototype.get = listCacheGet;
ListCache.prototype.has = listCacheHas;
ListCache.prototype.set = listCacheSet;

/**
 * Creates a map cache object to store key-value pairs.
 *
 * @private
 * @constructor
 * @param {Array} [entries] The key-value pairs to cache.
 */
function MapCache(entries) {
  var index = -1,
      length = entries == null ? 0 : entries.length;

  this.clear();
  while (++index < length) {
    var entry = entries[index];
    this.set(entry[0], entry[1]);
  }
}

/**
 * Removes all key-value entries from the map.
 *
 * @private
 * @name clear
 * @memberOf MapCache
 */
function mapCacheClear() {
  this.size = 0;
  this.__data__ = {
    'hash': new Hash,
    'map': new (Map || ListCache),
    'string': new Hash
  };
}

/**
 * Removes `key` and its value from the map.
 *
 * @private
 * @name delete
 * @memberOf MapCache
 * @param {string} key The key of the value to remove.
 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
 */
function mapCacheDelete(key) {
  var result = getMapData(this, key)['delete'](key);
  this.size -= result ? 1 : 0;
  return result;
}

/**
 * Gets the map value for `key`.
 *
 * @private
 * @name get
 * @memberOf MapCache
 * @param {string} key The key of the value to get.
 * @returns {*} Returns the entry value.
 */
function mapCacheGet(key) {
  return getMapData(this, key).get(key);
}

/**
 * Checks if a map value for `key` exists.
 *
 * @private
 * @name has
 * @memberOf MapCache
 * @param {string} key The key of the entry to check.
 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
 */
function mapCacheHas(key) {
  return getMapData(this, key).has(key);
}

/**
 * Sets the map `key` to `value`.
 *
 * @private
 * @name set
 * @memberOf MapCache
 * @param {string} key The key of the value to set.
 * @param {*} value The value to set.
 * @returns {Object} Returns the map cache instance.
 */
function mapCacheSet(key, value) {
  var data = getMapData(this, key),
      size = data.size;

  data.set(key, value);
  this.size += data.size == size ? 0 : 1;
  return this;
}

// Add methods to `MapCache`.
MapCache.prototype.clear = mapCacheClear;
MapCache.prototype['delete'] = mapCacheDelete;
MapCache.prototype.get = mapCacheGet;
MapCache.prototype.has = mapCacheHas;
MapCache.prototype.set = mapCacheSet;

/**
 * Creates a stack cache object to store key-value pairs.
 *
 * @private
 * @constructor
 * @param {Array} [entries] The key-value pairs to cache.
 */
function Stack(entries) {
  var data = this.__data__ = new ListCache(entries);
  this.size = data.size;
}

/**
 * Removes all key-value entries from the stack.
 *
 * @private
 * @name clear
 * @memberOf Stack
 */
function stackClear() {
  this.__data__ = new ListCache;
  this.size = 0;
}

/**
 * Removes `key` and its value from the stack.
 *
 * @private
 * @name delete
 * @memberOf Stack
 * @param {string} key The key of the value to remove.
 * @returns {boolean} Returns `true` if the entry was removed, else `false`.
 */
function stackDelete(key) {
  var data = this.__data__,
      result = data['delete'](key);

  this.size = data.size;
  return result;
}

/**
 * Gets the stack value for `key`.
 *
 * @private
 * @name get
 * @memberOf Stack
 * @param {string} key The key of the value to get.
 * @returns {*} Returns the entry value.
 */
function stackGet(key) {
  return this.__data__.get(key);
}

/**
 * Checks if a stack value for `key` exists.
 *
 * @private
 * @name has
 * @memberOf Stack
 * @param {string} key The key of the entry to check.
 * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
 */
function stackHas(key) {
  return this.__data__.has(key);
}

/**
 * Sets the stack `key` to `value`.
 *
 * @private
 * @name set
 * @memberOf Stack
 * @param {string} key The key of the value to set.
 * @param {*} value The value to set.
 * @returns {Object} Returns the stack cache instance.
 */
function stackSet(key, value) {
  var data = this.__data__;
  if (data instanceof ListCache) {
    var pairs = data.__data__;
    if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
      pairs.push([key, value]);
      this.size = ++data.size;
      return this;
    }
    data = this.__data__ = new MapCache(pairs);
  }
  data.set(key, value);
  this.size = data.size;
  return this;
}

// Add methods to `Stack`.
Stack.prototype.clear = stackClear;
Stack.prototype['delete'] = stackDelete;
Stack.prototype.get = stackGet;
Stack.prototype.has = stackHas;
Stack.prototype.set = stackSet;

/**
 * Creates an array of the enumerable property names of the array-like `value`.
 *
 * @private
 * @param {*} value The value to query.
 * @param {boolean} inherited Specify returning inherited property names.
 * @returns {Array} Returns the array of property names.
 */
function arrayLikeKeys(value, inherited) {
  var isArr = isArray(value),
      isArg = !isArr && isArguments(value),
      isBuff = !isArr && !isArg && isBuffer(value),
      isType = !isArr && !isArg && !isBuff && isTypedArray(value),
      skipIndexes = isArr || isArg || isBuff || isType,
      result = skipIndexes ? baseTimes(value.length, String) : [],
      length = result.length;

  for (var key in value) {
    if ((inherited || hasOwnProperty.call(value, key)) &&
        !(skipIndexes && (
           // Safari 9 has enumerable `arguments.length` in strict mode.
           key == 'length' ||
           // Node.js 0.10 has enumerable non-index properties on buffers.
           (isBuff && (key == 'offset' || key == 'parent')) ||
           // PhantomJS 2 has enumerable non-index properties on typed arrays.
           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
           // Skip index properties.
           isIndex(key, length)
        ))) {
      result.push(key);
    }
  }
  return result;
}

/**
 * This function is like `assignValue` except that it doesn't assign
 * `undefined` values.
 *
 * @private
 * @param {Object} object The object to modify.
 * @param {string} key The key of the property to assign.
 * @param {*} value The value to assign.
 */
function assignMergeValue(object, key, value) {
  if ((value !== undefined && !eq(object[key], value)) ||
      (value === undefined && !(key in object))) {
    baseAssignValue(object, key, value);
  }
}

/**
 * Assigns `value` to `key` of `object` if the existing value is not equivalent
 * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * for equality comparisons.
 *
 * @private
 * @param {Object} object The object to modify.
 * @param {string} key The key of the property to assign.
 * @param {*} value The value to assign.
 */
function assignValue(object, key, value) {
  var objValue = object[key];
  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
      (value === undefined && !(key in object))) {
    baseAssignValue(object, key, value);
  }
}

/**
 * Gets the index at which the `key` is found in `array` of key-value pairs.
 *
 * @private
 * @param {Array} array The array to inspect.
 * @param {*} key The key to search for.
 * @returns {number} Returns the index of the matched value, else `-1`.
 */
function assocIndexOf(array, key) {
  var length = array.length;
  while (length--) {
    if (eq(array[length][0], key)) {
      return length;
    }
  }
  return -1;
}

/**
 * The base implementation of `assignValue` and `assignMergeValue` without
 * value checks.
 *
 * @private
 * @param {Object} object The object to modify.
 * @param {string} key The key of the property to assign.
 * @param {*} value The value to assign.
 */
function baseAssignValue(object, key, value) {
  if (key == '__proto__' && defineProperty) {
    defineProperty(object, key, {
      'configurable': true,
      'enumerable': true,
      'value': value,
      'writable': true
    });
  } else {
    object[key] = value;
  }
}

/**
 * The base implementation of `baseForOwn` which iterates over `object`
 * properties returned by `keysFunc` and invokes `iteratee` for each property.
 * Iteratee functions may exit iteration early by explicitly returning `false`.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @param {Function} keysFunc The function to get the keys of `object`.
 * @returns {Object} Returns `object`.
 */
var baseFor = createBaseFor();

/**
 * The base implementation of `getTag` without fallbacks for buggy environments.
 *
 * @private
 * @param {*} value The value to query.
 * @returns {string} Returns the `toStringTag`.
 */
function baseGetTag(value) {
  if (value == null) {
    return value === undefined ? undefinedTag : nullTag;
  }
  return (symToStringTag && symToStringTag in Object(value))
    ? getRawTag(value)
    : objectToString(value);
}

/**
 * The base implementation of `_.isArguments`.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an `arguments` object,
 */
function baseIsArguments(value) {
  return isObjectLike(value) && baseGetTag(value) == argsTag;
}

/**
 * The base implementation of `_.isNative` without bad shim checks.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a native function,
 *  else `false`.
 */
function baseIsNative(value) {
  if (!isObject(value) || isMasked(value)) {
    return false;
  }
  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
  return pattern.test(toSource(value));
}

/**
 * The base implementation of `_.isTypedArray` without Node.js optimizations.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
 */
function baseIsTypedArray(value) {
  return isObjectLike(value) &&
    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
}

/**
 * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function baseKeysIn(object) {
  if (!isObject(object)) {
    return nativeKeysIn(object);
  }
  var isProto = isPrototype(object),
      result = [];

  for (var key in object) {
    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
      result.push(key);
    }
  }
  return result;
}

/**
 * The base implementation of `_.merge` without support for multiple sources.
 *
 * @private
 * @param {Object} object The destination object.
 * @param {Object} source The source object.
 * @param {number} srcIndex The index of `source`.
 * @param {Function} [customizer] The function to customize merged values.
 * @param {Object} [stack] Tracks traversed source values and their merged
 *  counterparts.
 */
function baseMerge(object, source, srcIndex, customizer, stack) {
  if (object === source) {
    return;
  }
  baseFor(source, function(srcValue, key) {
    stack || (stack = new Stack);
    if (isObject(srcValue)) {
      baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
    }
    else {
      var newValue = customizer
        ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
        : undefined;

      if (newValue === undefined) {
        newValue = srcValue;
      }
      assignMergeValue(object, key, newValue);
    }
  }, keysIn);
}

/**
 * A specialized version of `baseMerge` for arrays and objects which performs
 * deep merges and tracks traversed objects enabling objects with circular
 * references to be merged.
 *
 * @private
 * @param {Object} object The destination object.
 * @param {Object} source The source object.
 * @param {string} key The key of the value to merge.
 * @param {number} srcIndex The index of `source`.
 * @param {Function} mergeFunc The function to merge values.
 * @param {Function} [customizer] The function to customize assigned values.
 * @param {Object} [stack] Tracks traversed source values and their merged
 *  counterparts.
 */
function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
  var objValue = safeGet(object, key),
      srcValue = safeGet(source, key),
      stacked = stack.get(srcValue);

  if (stacked) {
    assignMergeValue(object, key, stacked);
    return;
  }
  var newValue = customizer
    ? customizer(objValue, srcValue, (key + ''), object, source, stack)
    : undefined;

  var isCommon = newValue === undefined;

  if (isCommon) {
    var isArr = isArray(srcValue),
        isBuff = !isArr && isBuffer(srcValue),
        isTyped = !isArr && !isBuff && isTypedArray(srcValue);

    newValue = srcValue;
    if (isArr || isBuff || isTyped) {
      if (isArray(objValue)) {
        newValue = objValue;
      }
      else if (isArrayLikeObject(objValue)) {
        newValue = copyArray(objValue);
      }
      else if (isBuff) {
        isCommon = false;
        newValue = cloneBuffer(srcValue, true);
      }
      else if (isTyped) {
        isCommon = false;
        newValue = cloneTypedArray(srcValue, true);
      }
      else {
        newValue = [];
      }
    }
    else if (isPlainObject(srcValue) || isArguments(srcValue)) {
      newValue = objValue;
      if (isArguments(objValue)) {
        newValue = toPlainObject(objValue);
      }
      else if (!isObject(objValue) || isFunction(objValue)) {
        newValue = initCloneObject(srcValue);
      }
    }
    else {
      isCommon = false;
    }
  }
  if (isCommon) {
    // Recursively merge objects and arrays (susceptible to call stack limits).
    stack.set(srcValue, newValue);
    mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
    stack['delete'](srcValue);
  }
  assignMergeValue(object, key, newValue);
}

/**
 * The base implementation of `_.rest` which doesn't validate or coerce arguments.
 *
 * @private
 * @param {Function} func The function to apply a rest parameter to.
 * @param {number} [start=func.length-1] The start position of the rest parameter.
 * @returns {Function} Returns the new function.
 */
function baseRest(func, start) {
  return setToString(overRest(func, start, identity), func + '');
}

/**
 * The base implementation of `setToString` without support for hot loop shorting.
 *
 * @private
 * @param {Function} func The function to modify.
 * @param {Function} string The `toString` result.
 * @returns {Function} Returns `func`.
 */
var baseSetToString = !defineProperty ? identity : function(func, string) {
  return defineProperty(func, 'toString', {
    'configurable': true,
    'enumerable': false,
    'value': constant(string),
    'writable': true
  });
};

/**
 * Creates a clone of  `buffer`.
 *
 * @private
 * @param {Buffer} buffer The buffer to clone.
 * @param {boolean} [isDeep] Specify a deep clone.
 * @returns {Buffer} Returns the cloned buffer.
 */
function cloneBuffer(buffer, isDeep) {
  if (isDeep) {
    return buffer.slice();
  }
  var length = buffer.length,
      result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

  buffer.copy(result);
  return result;
}

/**
 * Creates a clone of `arrayBuffer`.
 *
 * @private
 * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
 * @returns {ArrayBuffer} Returns the cloned array buffer.
 */
function cloneArrayBuffer(arrayBuffer) {
  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
  new Uint8Array(result).set(new Uint8Array(arrayBuffer));
  return result;
}

/**
 * Creates a clone of `typedArray`.
 *
 * @private
 * @param {Object} typedArray The typed array to clone.
 * @param {boolean} [isDeep] Specify a deep clone.
 * @returns {Object} Returns the cloned typed array.
 */
function cloneTypedArray(typedArray, isDeep) {
  var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
}

/**
 * Copies the values of `source` to `array`.
 *
 * @private
 * @param {Array} source The array to copy values from.
 * @param {Array} [array=[]] The array to copy values to.
 * @returns {Array} Returns `array`.
 */
function copyArray(source, array) {
  var index = -1,
      length = source.length;

  array || (array = Array(length));
  while (++index < length) {
    array[index] = source[index];
  }
  return array;
}

/**
 * Copies properties of `source` to `object`.
 *
 * @private
 * @param {Object} source The object to copy properties from.
 * @param {Array} props The property identifiers to copy.
 * @param {Object} [object={}] The object to copy properties to.
 * @param {Function} [customizer] The function to customize copied values.
 * @returns {Object} Returns `object`.
 */
function copyObject(source, props, object, customizer) {
  var isNew = !object;
  object || (object = {});

  var index = -1,
      length = props.length;

  while (++index < length) {
    var key = props[index];

    var newValue = customizer
      ? customizer(object[key], source[key], key, object, source)
      : undefined;

    if (newValue === undefined) {
      newValue = source[key];
    }
    if (isNew) {
      baseAssignValue(object, key, newValue);
    } else {
      assignValue(object, key, newValue);
    }
  }
  return object;
}

/**
 * Creates a function like `_.assign`.
 *
 * @private
 * @param {Function} assigner The function to assign values.
 * @returns {Function} Returns the new assigner function.
 */
function createAssigner(assigner) {
  return baseRest(function(object, sources) {
    var index = -1,
        length = sources.length,
        customizer = length > 1 ? sources[length - 1] : undefined,
        guard = length > 2 ? sources[2] : undefined;

    customizer = (assigner.length > 3 && typeof customizer == 'function')
      ? (length--, customizer)
      : undefined;

    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
      customizer = length < 3 ? undefined : customizer;
      length = 1;
    }
    object = Object(object);
    while (++index < length) {
      var source = sources[index];
      if (source) {
        assigner(object, source, index, customizer);
      }
    }
    return object;
  });
}

/**
 * Creates a base function for methods like `_.forIn` and `_.forOwn`.
 *
 * @private
 * @param {boolean} [fromRight] Specify iterating from right to left.
 * @returns {Function} Returns the new base function.
 */
function createBaseFor(fromRight) {
  return function(object, iteratee, keysFunc) {
    var index = -1,
        iterable = Object(object),
        props = keysFunc(object),
        length = props.length;

    while (length--) {
      var key = props[fromRight ? length : ++index];
      if (iteratee(iterable[key], key, iterable) === false) {
        break;
      }
    }
    return object;
  };
}

/**
 * Gets the data for `map`.
 *
 * @private
 * @param {Object} map The map to query.
 * @param {string} key The reference key.
 * @returns {*} Returns the map data.
 */
function getMapData(map, key) {
  var data = map.__data__;
  return isKeyable(key)
    ? data[typeof key == 'string' ? 'string' : 'hash']
    : data.map;
}

/**
 * Gets the native function at `key` of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the method to get.
 * @returns {*} Returns the function if it's native, else `undefined`.
 */
function getNative(object, key) {
  var value = getValue(object, key);
  return baseIsNative(value) ? value : undefined;
}

/**
 * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
 *
 * @private
 * @param {*} value The value to query.
 * @returns {string} Returns the raw `toStringTag`.
 */
function getRawTag(value) {
  var isOwn = hasOwnProperty.call(value, symToStringTag),
      tag = value[symToStringTag];

  try {
    value[symToStringTag] = undefined;
    var unmasked = true;
  } catch (e) {}

  var result = nativeObjectToString.call(value);
  if (unmasked) {
    if (isOwn) {
      value[symToStringTag] = tag;
    } else {
      delete value[symToStringTag];
    }
  }
  return result;
}

/**
 * Initializes an object clone.
 *
 * @private
 * @param {Object} object The object to clone.
 * @returns {Object} Returns the initialized clone.
 */
function initCloneObject(object) {
  return (typeof object.constructor == 'function' && !isPrototype(object))
    ? baseCreate(getPrototype(object))
    : {};
}

/**
 * Checks if `value` is a valid array-like index.
 *
 * @private
 * @param {*} value The value to check.
 * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
 * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
 */
function isIndex(value, length) {
  var type = typeof value;
  length = length == null ? MAX_SAFE_INTEGER : length;

  return !!length &&
    (type == 'number' ||
      (type != 'symbol' && reIsUint.test(value))) &&
        (value > -1 && value % 1 == 0 && value < length);
}

/**
 * Checks if the given arguments are from an iteratee call.
 *
 * @private
 * @param {*} value The potential iteratee value argument.
 * @param {*} index The potential iteratee index or key argument.
 * @param {*} object The potential iteratee object argument.
 * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
 *  else `false`.
 */
function isIterateeCall(value, index, object) {
  if (!isObject(object)) {
    return false;
  }
  var type = typeof index;
  if (type == 'number'
        ? (isArrayLike(object) && isIndex(index, object.length))
        : (type == 'string' && index in object)
      ) {
    return eq(object[index], value);
  }
  return false;
}

/**
 * Checks if `value` is suitable for use as unique object key.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
 */
function isKeyable(value) {
  var type = typeof value;
  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
    ? (value !== '__proto__')
    : (value === null);
}

/**
 * Checks if `func` has its source masked.
 *
 * @private
 * @param {Function} func The function to check.
 * @returns {boolean} Returns `true` if `func` is masked, else `false`.
 */
function isMasked(func) {
  return !!maskSrcKey && (maskSrcKey in func);
}

/**
 * Checks if `value` is likely a prototype object.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
 */
function isPrototype(value) {
  var Ctor = value && value.constructor,
      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

  return value === proto;
}

/**
 * This function is like
 * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
 * except that it includes inherited enumerable properties.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function nativeKeysIn(object) {
  var result = [];
  if (object != null) {
    for (var key in Object(object)) {
      result.push(key);
    }
  }
  return result;
}

/**
 * Converts `value` to a string using `Object.prototype.toString`.
 *
 * @private
 * @param {*} value The value to convert.
 * @returns {string} Returns the converted string.
 */
function objectToString(value) {
  return nativeObjectToString.call(value);
}

/**
 * A specialized version of `baseRest` which transforms the rest array.
 *
 * @private
 * @param {Function} func The function to apply a rest parameter to.
 * @param {number} [start=func.length-1] The start position of the rest parameter.
 * @param {Function} transform The rest array transform.
 * @returns {Function} Returns the new function.
 */
function overRest(func, start, transform) {
  start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
  return function() {
    var args = arguments,
        index = -1,
        length = nativeMax(args.length - start, 0),
        array = Array(length);

    while (++index < length) {
      array[index] = args[start + index];
    }
    index = -1;
    var otherArgs = Array(start + 1);
    while (++index < start) {
      otherArgs[index] = args[index];
    }
    otherArgs[start] = transform(array);
    return apply(func, this, otherArgs);
  };
}

/**
 * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the property to get.
 * @returns {*} Returns the property value.
 */
function safeGet(object, key) {
  if (key === 'constructor' && typeof object[key] === 'function') {
    return;
  }

  if (key == '__proto__') {
    return;
  }

  return object[key];
}

/**
 * Sets the `toString` method of `func` to return `string`.
 *
 * @private
 * @param {Function} func The function to modify.
 * @param {Function} string The `toString` result.
 * @returns {Function} Returns `func`.
 */
var setToString = shortOut(baseSetToString);

/**
 * Creates a function that'll short out and invoke `identity` instead
 * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
 * milliseconds.
 *
 * @private
 * @param {Function} func The function to restrict.
 * @returns {Function} Returns the new shortable function.
 */
function shortOut(func) {
  var count = 0,
      lastCalled = 0;

  return function() {
    var stamp = nativeNow(),
        remaining = HOT_SPAN - (stamp - lastCalled);

    lastCalled = stamp;
    if (remaining > 0) {
      if (++count >= HOT_COUNT) {
        return arguments[0];
      }
    } else {
      count = 0;
    }
    return func.apply(undefined, arguments);
  };
}

/**
 * Converts `func` to its source code.
 *
 * @private
 * @param {Function} func The function to convert.
 * @returns {string} Returns the source code.
 */
function toSource(func) {
  if (func != null) {
    try {
      return funcToString.call(func);
    } catch (e) {}
    try {
      return (func + '');
    } catch (e) {}
  }
  return '';
}

/**
 * Performs a
 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
 * comparison between two values to determine if they are equivalent.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to compare.
 * @param {*} other The other value to compare.
 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
 * @example
 *
 * var object = { 'a': 1 };
 * var other = { 'a': 1 };
 *
 * _.eq(object, object);
 * // => true
 *
 * _.eq(object, other);
 * // => false
 *
 * _.eq('a', 'a');
 * // => true
 *
 * _.eq('a', Object('a'));
 * // => false
 *
 * _.eq(NaN, NaN);
 * // => true
 */
function eq(value, other) {
  return value === other || (value !== value && other !== other);
}

/**
 * Checks if `value` is likely an `arguments` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an `arguments` object,
 *  else `false`.
 * @example
 *
 * _.isArguments(function() { return arguments; }());
 * // => true
 *
 * _.isArguments([1, 2, 3]);
 * // => false
 */
var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
    !propertyIsEnumerable.call(value, 'callee');
};

/**
 * Checks if `value` is classified as an `Array` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an array, else `false`.
 * @example
 *
 * _.isArray([1, 2, 3]);
 * // => true
 *
 * _.isArray(document.body.children);
 * // => false
 *
 * _.isArray('abc');
 * // => false
 *
 * _.isArray(_.noop);
 * // => false
 */
var isArray = Array.isArray;

/**
 * Checks if `value` is array-like. A value is considered array-like if it's
 * not a function and has a `value.length` that's an integer greater than or
 * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 * @example
 *
 * _.isArrayLike([1, 2, 3]);
 * // => true
 *
 * _.isArrayLike(document.body.children);
 * // => true
 *
 * _.isArrayLike('abc');
 * // => true
 *
 * _.isArrayLike(_.noop);
 * // => false
 */
function isArrayLike(value) {
  return value != null && isLength(value.length) && !isFunction(value);
}

/**
 * This method is like `_.isArrayLike` except that it also checks if `value`
 * is an object.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an array-like object,
 *  else `false`.
 * @example
 *
 * _.isArrayLikeObject([1, 2, 3]);
 * // => true
 *
 * _.isArrayLikeObject(document.body.children);
 * // => true
 *
 * _.isArrayLikeObject('abc');
 * // => false
 *
 * _.isArrayLikeObject(_.noop);
 * // => false
 */
function isArrayLikeObject(value) {
  return isObjectLike(value) && isArrayLike(value);
}

/**
 * Checks if `value` is a buffer.
 *
 * @static
 * @memberOf _
 * @since 4.3.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
 * @example
 *
 * _.isBuffer(new Buffer(2));
 * // => true
 *
 * _.isBuffer(new Uint8Array(2));
 * // => false
 */
var isBuffer = nativeIsBuffer || stubFalse;

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a function, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  if (!isObject(value)) {
    return false;
  }
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in Safari 9 which returns 'object' for typed arrays and other constructors.
  var tag = baseGetTag(value);
  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This method is loosely based on
 * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 * @example
 *
 * _.isLength(3);
 * // => true
 *
 * _.isLength(Number.MIN_VALUE);
 * // => false
 *
 * _.isLength(Infinity);
 * // => false
 *
 * _.isLength('3');
 * // => false
 */
function isLength(value) {
  return typeof value == 'number' &&
    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is the
 * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(_.noop);
 * // => true
 *
 * _.isObject(null);
 * // => false
 */
function isObject(value) {
  var type = typeof value;
  return value != null && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is object-like. A value is object-like if it's not `null`
 * and has a `typeof` result of "object".
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 * @example
 *
 * _.isObjectLike({});
 * // => true
 *
 * _.isObjectLike([1, 2, 3]);
 * // => true
 *
 * _.isObjectLike(_.noop);
 * // => false
 *
 * _.isObjectLike(null);
 * // => false
 */
function isObjectLike(value) {
  return value != null && typeof value == 'object';
}

/**
 * Checks if `value` is a plain object, that is, an object created by the
 * `Object` constructor or one with a `[[Prototype]]` of `null`.
 *
 * @static
 * @memberOf _
 * @since 0.8.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 * }
 *
 * _.isPlainObject(new Foo);
 * // => false
 *
 * _.isPlainObject([1, 2, 3]);
 * // => false
 *
 * _.isPlainObject({ 'x': 0, 'y': 0 });
 * // => true
 *
 * _.isPlainObject(Object.create(null));
 * // => true
 */
function isPlainObject(value) {
  if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
    return false;
  }
  var proto = getPrototype(value);
  if (proto === null) {
    return true;
  }
  var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
  return typeof Ctor == 'function' && Ctor instanceof Ctor &&
    funcToString.call(Ctor) == objectCtorString;
}

/**
 * Checks if `value` is classified as a typed array.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
 * @example
 *
 * _.isTypedArray(new Uint8Array);
 * // => true
 *
 * _.isTypedArray([]);
 * // => false
 */
var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

/**
 * Converts `value` to a plain object flattening inherited enumerable string
 * keyed properties of `value` to own properties of the plain object.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Lang
 * @param {*} value The value to convert.
 * @returns {Object} Returns the converted plain object.
 * @example
 *
 * function Foo() {
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.assign({ 'a': 1 }, new Foo);
 * // => { 'a': 1, 'b': 2 }
 *
 * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
 * // => { 'a': 1, 'b': 2, 'c': 3 }
 */
function toPlainObject(value) {
  return copyObject(value, keysIn(value));
}

/**
 * Creates an array of the own and inherited enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects.
 *
 * @static
 * @memberOf _
 * @since 3.0.0
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keysIn(new Foo);
 * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
 */
function keysIn(object) {
  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
}

/**
 * This method is like `_.assign` except that it recursively merges own and
 * inherited enumerable string keyed properties of source objects into the
 * destination object. Source properties that resolve to `undefined` are
 * skipped if a destination value exists. Array and plain object properties
 * are merged recursively. Other objects and value types are overridden by
 * assignment. Source objects are applied from left to right. Subsequent
 * sources overwrite property assignments of previous sources.
 *
 * **Note:** This method mutates `object`.
 *
 * @static
 * @memberOf _
 * @since 0.5.0
 * @category Object
 * @param {Object} object The destination object.
 * @param {...Object} [sources] The source objects.
 * @returns {Object} Returns `object`.
 * @example
 *
 * var object = {
 *   'a': [{ 'b': 2 }, { 'd': 4 }]
 * };
 *
 * var other = {
 *   'a': [{ 'c': 3 }, { 'e': 5 }]
 * };
 *
 * _.merge(object, other);
 * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
 */
var merge = createAssigner(function(object, source, srcIndex) {
  baseMerge(object, source, srcIndex);
});

/**
 * Creates a function that returns `value`.
 *
 * @static
 * @memberOf _
 * @since 2.4.0
 * @category Util
 * @param {*} value The value to return from the new function.
 * @returns {Function} Returns the new constant function.
 * @example
 *
 * var objects = _.times(2, _.constant({ 'a': 1 }));
 *
 * console.log(objects);
 * // => [{ 'a': 1 }, { 'a': 1 }]
 *
 * console.log(objects[0] === objects[1]);
 * // => true
 */
function constant(value) {
  return function() {
    return value;
  };
}

/**
 * This method returns the first argument it receives.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Util
 * @param {*} value Any value.
 * @returns {*} Returns `value`.
 * @example
 *
 * var object = { 'a': 1 };
 *
 * console.log(_.identity(object) === object);
 * // => true
 */
function identity(value) {
  return value;
}

/**
 * This method returns `false`.
 *
 * @static
 * @memberOf _
 * @since 4.13.0
 * @category Util
 * @returns {boolean} Returns `false`.
 * @example
 *
 * _.times(2, _.stubFalse);
 * // => [false, false]
 */
function stubFalse() {
  return false;
}

module.exports = merge;

/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5), __webpack_require__(7)(module)))

/***/ }),

/***/ 5:
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || Function("return this")() || (1,eval)("this");
} catch(e) {
	// This works if the window reference is available
	if(typeof window === "object")
		g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),

/***/ 55:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _jquery = __webpack_require__(0);

var _jquery2 = _interopRequireDefault(_jquery);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

__webpack_require__(38);
__webpack_require__(39);
var geonames = {

    init: function init($field, options) {
        var geocompleter = $field.geocompleter(options);

        // On focus add select-state
        geocompleter.geocompleter('autocompleter', 'on', 'autocompletefocus', function (event, ui) {
            (0, _jquery2.default)('li', (0, _jquery2.default)(event.originalEvent.target)).closest('li').removeClass('selected');
            (0, _jquery2.default)('a.ui-state-active, a.ui-state-hover, a.ui-state-focus', (0, _jquery2.default)(event.originalEvent.target)).closest('li').addClass('selected');
        });

        // On search request add loading-state
        geocompleter.geocompleter('autocompleter', 'on', 'autocompletesearch', function (event, ui) {
            (0, _jquery2.default)(this).attr('autocomplete', 'false');
            (0, _jquery2.default)(this).addClass('input-loading');
            (0, _jquery2.default)(this).removeClass('input-error');
        });

        // On response remove loading-state
        geocompleter.geocompleter('autocompleter', 'on', 'autocompleteresponse', function (event, ui) {
            (0, _jquery2.default)(this).removeClass('input-loading');
        });

        // On close menu remove loading-state
        geocompleter.geocompleter('autocompleter', 'on', 'autocompleteclose', function (event, ui) {
            (0, _jquery2.default)(this).removeClass('input-loading');
        });

        // On request error add error-state
        geocompleter.geocompleter('autocompleter', 'on', 'geotocompleter.request.error', function (jqXhr, status, error) {
            (0, _jquery2.default)(this).removeClass('input-loading');
            (0, _jquery2.default)(this).addClass('input-error');
        });

        return geocompleter;
    }

};

exports.default = geonames;

/***/ }),

/***/ 6:
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var EventEmitter = function () {
  function EventEmitter() {
    _classCallCheck(this, EventEmitter);

    this.observers = {};
  }

  EventEmitter.prototype.on = function on(events, listener) {
    var _this = this;

    events.split(' ').forEach(function (event) {
      _this.observers[event] = _this.observers[event] || [];
      _this.observers[event].push(listener);
    });
  };

  EventEmitter.prototype.off = function off(event, listener) {
    var _this2 = this;

    if (!this.observers[event]) {
      return;
    }

    this.observers[event].forEach(function () {
      if (!listener) {
        delete _this2.observers[event];
      } else {
        var index = _this2.observers[event].indexOf(listener);
        if (index > -1) {
          _this2.observers[event].splice(index, 1);
        }
      }
    });
  };

  EventEmitter.prototype.emit = function emit(event) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    if (this.observers[event]) {
      var cloned = [].concat(this.observers[event]);
      cloned.forEach(function (observer) {
        observer.apply(undefined, args);
      });
    }

    if (this.observers['*']) {
      var _cloned = [].concat(this.observers['*']);
      _cloned.forEach(function (observer) {
        var _ref;

        observer.apply(observer, (_ref = [event]).concat.apply(_ref, args));
      });
    }
  };

  return EventEmitter;
}();

/* harmony default export */ __webpack_exports__["a"] = (EventEmitter);

/***/ }),

/***/ 7:
/***/ (function(module, exports) {

module.exports = function(module) {
	if(!module.webpackPolyfill) {
		module.deprecate = function() {};
		module.paths = [];
		// module.parent = undefined by default
		if(!module.children) module.children = [];
		Object.defineProperty(module, "loaded", {
			enumerable: true,
			get: function() {
				return module.l;
			}
		});
		Object.defineProperty(module, "id", {
			enumerable: true,
			get: function() {
				return module.i;
			}
		});
		module.webpackPolyfill = 1;
	}
	return module;
};


/***/ }),

/***/ 8:
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(module, global, process) {var __WEBPACK_AMD_DEFINE_RESULT__;// Copyright (c) Microsoft, All rights reserved. See License.txt in the project root for license information.

;(function (undefined) {

  var objectTypes = {
    'function': true,
    'object': true
  };

  function checkGlobal(value) {
    return (value && value.Object === Object) ? value : null;
  }

  var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType) ? exports : null;
  var freeModule = (objectTypes[typeof module] && module && !module.nodeType) ? module : null;
  var freeGlobal = checkGlobal(freeExports && freeModule && typeof global === 'object' && global);
  var freeSelf = checkGlobal(objectTypes[typeof self] && self);
  var freeWindow = checkGlobal(objectTypes[typeof window] && window);
  var moduleExports = (freeModule && freeModule.exports === freeExports) ? freeExports : null;
  var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
  var root = freeGlobal || ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) || freeSelf || thisGlobal || Function('return this')();

  var Rx = {
    internals: {},
    config: {
      Promise: root.Promise
    },
    helpers: { }
  };

  // Defaults
  var noop = Rx.helpers.noop = function () { },
    identity = Rx.helpers.identity = function (x) { return x; },
    defaultNow = Rx.helpers.defaultNow = Date.now,
    defaultComparer = Rx.helpers.defaultComparer = function (x, y) { return isEqual(x, y); },
    defaultSubComparer = Rx.helpers.defaultSubComparer = function (x, y) { return x > y ? 1 : (x < y ? -1 : 0); },
    defaultKeySerializer = Rx.helpers.defaultKeySerializer = function (x) { return x.toString(); },
    defaultError = Rx.helpers.defaultError = function (err) { throw err; },
    isPromise = Rx.helpers.isPromise = function (p) { return !!p && typeof p.subscribe !== 'function' && typeof p.then === 'function'; },
    isFunction = Rx.helpers.isFunction = (function () {

      var isFn = function (value) {
        return typeof value == 'function' || false;
      };

      // fallback for older versions of Chrome and Safari
      if (isFn(/x/)) {
        isFn = function(value) {
          return typeof value == 'function' && toString.call(value) == '[object Function]';
        };
      }

      return isFn;
    }());

  function cloneArray(arr) { for(var a = [], i = 0, len = arr.length; i < len; i++) { a.push(arr[i]); } return a;}

  var errorObj = {e: {}};
  
  function tryCatcherGen(tryCatchTarget) {
    return function tryCatcher() {
      try {
        return tryCatchTarget.apply(this, arguments);
      } catch (e) {
        errorObj.e = e;
        return errorObj;
      }
    };
  }

  var tryCatch = Rx.internals.tryCatch = function tryCatch(fn) {
    if (!isFunction(fn)) { throw new TypeError('fn must be a function'); }
    return tryCatcherGen(fn);
  };

  function thrower(e) {
    throw e;
  }

  Rx.config.longStackSupport = false;
  var hasStacks = false, stacks = tryCatch(function () { throw new Error(); })();
  hasStacks = !!stacks.e && !!stacks.e.stack;

  // All code after this point will be filtered from stack traces reported by RxJS
  var rStartingLine = captureLine(), rFileName;

  var STACK_JUMP_SEPARATOR = 'From previous event:';

  function makeStackTraceLong(error, observable) {
    // If possible, transform the error stack trace by removing Node and RxJS
    // cruft, then concatenating with the stack trace of `observable`.
    if (hasStacks &&
        observable.stack &&
        typeof error === 'object' &&
        error !== null &&
        error.stack &&
        error.stack.indexOf(STACK_JUMP_SEPARATOR) === -1
    ) {
      var stacks = [];
      for (var o = observable; !!o; o = o.source) {
        if (o.stack) {
          stacks.unshift(o.stack);
        }
      }
      stacks.unshift(error.stack);

      var concatedStacks = stacks.join('\n' + STACK_JUMP_SEPARATOR + '\n');
      error.stack = filterStackString(concatedStacks);
    }
  }

  function filterStackString(stackString) {
    var lines = stackString.split('\n'), desiredLines = [];
    for (var i = 0, len = lines.length; i < len; i++) {
      var line = lines[i];

      if (!isInternalFrame(line) && !isNodeFrame(line) && line) {
        desiredLines.push(line);
      }
    }
    return desiredLines.join('\n');
  }

  function isInternalFrame(stackLine) {
    var fileNameAndLineNumber = getFileNameAndLineNumber(stackLine);
    if (!fileNameAndLineNumber) {
      return false;
    }
    var fileName = fileNameAndLineNumber[0], lineNumber = fileNameAndLineNumber[1];

    return fileName === rFileName &&
      lineNumber >= rStartingLine &&
      lineNumber <= rEndingLine;
  }

  function isNodeFrame(stackLine) {
    return stackLine.indexOf('(module.js:') !== -1 ||
      stackLine.indexOf('(node.js:') !== -1;
  }

  function captureLine() {
    if (!hasStacks) { return; }

    try {
      throw new Error();
    } catch (e) {
      var lines = e.stack.split('\n');
      var firstLine = lines[0].indexOf('@') > 0 ? lines[1] : lines[2];
      var fileNameAndLineNumber = getFileNameAndLineNumber(firstLine);
      if (!fileNameAndLineNumber) { return; }

      rFileName = fileNameAndLineNumber[0];
      return fileNameAndLineNumber[1];
    }
  }

  function getFileNameAndLineNumber(stackLine) {
    // Named functions: 'at functionName (filename:lineNumber:columnNumber)'
    var attempt1 = /at .+ \((.+):(\d+):(?:\d+)\)$/.exec(stackLine);
    if (attempt1) { return [attempt1[1], Number(attempt1[2])]; }

    // Anonymous functions: 'at filename:lineNumber:columnNumber'
    var attempt2 = /at ([^ ]+):(\d+):(?:\d+)$/.exec(stackLine);
    if (attempt2) { return [attempt2[1], Number(attempt2[2])]; }

    // Firefox style: 'function@filename:lineNumber or @filename:lineNumber'
    var attempt3 = /.*@(.+):(\d+)$/.exec(stackLine);
    if (attempt3) { return [attempt3[1], Number(attempt3[2])]; }
  }

  var EmptyError = Rx.EmptyError = function() {
    this.message = 'Sequence contains no elements.';
    Error.call(this);
  };
  EmptyError.prototype = Object.create(Error.prototype);
  EmptyError.prototype.name = 'EmptyError';

  var ObjectDisposedError = Rx.ObjectDisposedError = function() {
    this.message = 'Object has been disposed';
    Error.call(this);
  };
  ObjectDisposedError.prototype = Object.create(Error.prototype);
  ObjectDisposedError.prototype.name = 'ObjectDisposedError';

  var ArgumentOutOfRangeError = Rx.ArgumentOutOfRangeError = function () {
    this.message = 'Argument out of range';
    Error.call(this);
  };
  ArgumentOutOfRangeError.prototype = Object.create(Error.prototype);
  ArgumentOutOfRangeError.prototype.name = 'ArgumentOutOfRangeError';

  var NotSupportedError = Rx.NotSupportedError = function (message) {
    this.message = message || 'This operation is not supported';
    Error.call(this);
  };
  NotSupportedError.prototype = Object.create(Error.prototype);
  NotSupportedError.prototype.name = 'NotSupportedError';

  var NotImplementedError = Rx.NotImplementedError = function (message) {
    this.message = message || 'This operation is not implemented';
    Error.call(this);
  };
  NotImplementedError.prototype = Object.create(Error.prototype);
  NotImplementedError.prototype.name = 'NotImplementedError';

  var notImplemented = Rx.helpers.notImplemented = function () {
    throw new NotImplementedError();
  };

  var notSupported = Rx.helpers.notSupported = function () {
    throw new NotSupportedError();
  };

  // Shim in iterator support
  var $iterator$ = (typeof Symbol === 'function' && Symbol.iterator) ||
    '_es6shim_iterator_';
  // Bug for mozilla version
  if (root.Set && typeof new root.Set()['@@iterator'] === 'function') {
    $iterator$ = '@@iterator';
  }

  var doneEnumerator = Rx.doneEnumerator = { done: true, value: undefined };

  var isIterable = Rx.helpers.isIterable = function (o) {
    return o && o[$iterator$] !== undefined;
  };

  var isArrayLike = Rx.helpers.isArrayLike = function (o) {
    return o && o.length !== undefined;
  };

  Rx.helpers.iterator = $iterator$;

  var bindCallback = Rx.internals.bindCallback = function (func, thisArg, argCount) {
    if (typeof thisArg === 'undefined') { return func; }
    switch(argCount) {
      case 0:
        return function() {
          return func.call(thisArg)
        };
      case 1:
        return function(arg) {
          return func.call(thisArg, arg);
        };
      case 2:
        return function(value, index) {
          return func.call(thisArg, value, index);
        };
      case 3:
        return function(value, index, collection) {
          return func.call(thisArg, value, index, collection);
        };
    }

    return function() {
      return func.apply(thisArg, arguments);
    };
  };

  /** Used to determine if values are of the language type Object */
  var dontEnums = ['toString',
    'toLocaleString',
    'valueOf',
    'hasOwnProperty',
    'isPrototypeOf',
    'propertyIsEnumerable',
    'constructor'],
  dontEnumsLength = dontEnums.length;

var argsTag = '[object Arguments]',
    arrayTag = '[object Array]',
    boolTag = '[object Boolean]',
    dateTag = '[object Date]',
    errorTag = '[object Error]',
    funcTag = '[object Function]',
    mapTag = '[object Map]',
    numberTag = '[object Number]',
    objectTag = '[object Object]',
    regexpTag = '[object RegExp]',
    setTag = '[object Set]',
    stringTag = '[object String]',
    weakMapTag = '[object WeakMap]';

var arrayBufferTag = '[object ArrayBuffer]',
    float32Tag = '[object Float32Array]',
    float64Tag = '[object Float64Array]',
    int8Tag = '[object Int8Array]',
    int16Tag = '[object Int16Array]',
    int32Tag = '[object Int32Array]',
    uint8Tag = '[object Uint8Array]',
    uint8ClampedTag = '[object Uint8ClampedArray]',
    uint16Tag = '[object Uint16Array]',
    uint32Tag = '[object Uint32Array]';

var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
typedArrayTags[dateTag] = typedArrayTags[errorTag] =
typedArrayTags[funcTag] = typedArrayTags[mapTag] =
typedArrayTags[numberTag] = typedArrayTags[objectTag] =
typedArrayTags[regexpTag] = typedArrayTags[setTag] =
typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

var objectProto = Object.prototype,
    hasOwnProperty = objectProto.hasOwnProperty,
    objToString = objectProto.toString,
    MAX_SAFE_INTEGER = Math.pow(2, 53) - 1;

var keys = Object.keys || (function() {
    var hasOwnProperty = Object.prototype.hasOwnProperty,
        hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString'),
        dontEnums = [
          'toString',
          'toLocaleString',
          'valueOf',
          'hasOwnProperty',
          'isPrototypeOf',
          'propertyIsEnumerable',
          'constructor'
        ],
        dontEnumsLength = dontEnums.length;

    return function(obj) {
      if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
        throw new TypeError('Object.keys called on non-object');
      }

      var result = [], prop, i;

      for (prop in obj) {
        if (hasOwnProperty.call(obj, prop)) {
          result.push(prop);
        }
      }

      if (hasDontEnumBug) {
        for (i = 0; i < dontEnumsLength; i++) {
          if (hasOwnProperty.call(obj, dontEnums[i])) {
            result.push(dontEnums[i]);
          }
        }
      }
      return result;
    };
  }());

function equalObjects(object, other, equalFunc, isLoose, stackA, stackB) {
  var objProps = keys(object),
      objLength = objProps.length,
      othProps = keys(other),
      othLength = othProps.length;

  if (objLength !== othLength && !isLoose) {
    return false;
  }
  var index = objLength, key;
  while (index--) {
    key = objProps[index];
    if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
      return false;
    }
  }
  var skipCtor = isLoose;
  while (++index < objLength) {
    key = objProps[index];
    var objValue = object[key],
        othValue = other[key],
        result;

    if (!(result === undefined ? equalFunc(objValue, othValue, isLoose, stackA, stackB) : result)) {
      return false;
    }
    skipCtor || (skipCtor = key === 'constructor');
  }
  if (!skipCtor) {
    var objCtor = object.constructor,
        othCtor = other.constructor;

    if (objCtor !== othCtor &&
        ('constructor' in object && 'constructor' in other) &&
        !(typeof objCtor === 'function' && objCtor instanceof objCtor &&
          typeof othCtor === 'function' && othCtor instanceof othCtor)) {
      return false;
    }
  }
  return true;
}

function equalByTag(object, other, tag) {
  switch (tag) {
    case boolTag:
    case dateTag:
      return +object === +other;

    case errorTag:
      return object.name === other.name && object.message === other.message;

    case numberTag:
      return (object !== +object) ?
        other !== +other :
        object === +other;

    case regexpTag:
    case stringTag:
      return object === (other + '');
  }
  return false;
}

var isObject = Rx.internals.isObject = function(value) {
  var type = typeof value;
  return !!value && (type === 'object' || type === 'function');
};

function isObjectLike(value) {
  return !!value && typeof value === 'object';
}

function isLength(value) {
  return typeof value === 'number' && value > -1 && value % 1 === 0 && value <= MAX_SAFE_INTEGER;
}

var isHostObject = (function() {
  try {
    Object({ 'toString': 0 } + '');
  } catch(e) {
    return function() { return false; };
  }
  return function(value) {
    return typeof value.toString !== 'function' && typeof (value + '') === 'string';
  };
}());

function isTypedArray(value) {
  return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
}

var isArray = Array.isArray || function(value) {
  return isObjectLike(value) && isLength(value.length) && objToString.call(value) === arrayTag;
};

function arraySome (array, predicate) {
  var index = -1,
      length = array.length;

  while (++index < length) {
    if (predicate(array[index], index, array)) {
      return true;
    }
  }
  return false;
}

function equalArrays(array, other, equalFunc, isLoose, stackA, stackB) {
  var index = -1,
      arrLength = array.length,
      othLength = other.length;

  if (arrLength !== othLength && !(isLoose && othLength > arrLength)) {
    return false;
  }
  // Ignore non-index properties.
  while (++index < arrLength) {
    var arrValue = array[index],
        othValue = other[index],
        result;

    if (result !== undefined) {
      if (result) {
        continue;
      }
      return false;
    }
    // Recursively compare arrays (susceptible to call stack limits).
    if (isLoose) {
      if (!arraySome(other, function(othValue) {
            return arrValue === othValue || equalFunc(arrValue, othValue, isLoose, stackA, stackB);
          })) {
        return false;
      }
    } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, isLoose, stackA, stackB))) {
      return false;
    }
  }
  return true;
}

function baseIsEqualDeep(object, other, equalFunc, isLoose, stackA, stackB) {
  var objIsArr = isArray(object),
      othIsArr = isArray(other),
      objTag = arrayTag,
      othTag = arrayTag;

  if (!objIsArr) {
    objTag = objToString.call(object);
    if (objTag === argsTag) {
      objTag = objectTag;
    } else if (objTag !== objectTag) {
      objIsArr = isTypedArray(object);
    }
  }
  if (!othIsArr) {
    othTag = objToString.call(other);
    if (othTag === argsTag) {
      othTag = objectTag;
    }
  }
  var objIsObj = objTag === objectTag && !isHostObject(object),
      othIsObj = othTag === objectTag && !isHostObject(other),
      isSameTag = objTag === othTag;

  if (isSameTag && !(objIsArr || objIsObj)) {
    return equalByTag(object, other, objTag);
  }
  if (!isLoose) {
    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

    if (objIsWrapped || othIsWrapped) {
      return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, isLoose, stackA, stackB);
    }
  }
  if (!isSameTag) {
    return false;
  }
  // Assume cyclic values are equal.
  // For more information on detecting circular references see https://es5.github.io/#JO.
  stackA || (stackA = []);
  stackB || (stackB = []);

  var length = stackA.length;
  while (length--) {
    if (stackA[length] === object) {
      return stackB[length] === other;
    }
  }
  // Add `object` and `other` to the stack of traversed objects.
  stackA.push(object);
  stackB.push(other);

  var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, isLoose, stackA, stackB);

  stackA.pop();
  stackB.pop();

  return result;
}

function baseIsEqual(value, other, isLoose, stackA, stackB) {
  if (value === other) {
    return true;
  }
  if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
    return value !== value && other !== other;
  }
  return baseIsEqualDeep(value, other, baseIsEqual, isLoose, stackA, stackB);
}

var isEqual = Rx.internals.isEqual = function (value, other) {
  return baseIsEqual(value, other);
};

  var hasProp = {}.hasOwnProperty,
      slice = Array.prototype.slice;

  var inherits = Rx.internals.inherits = function (child, parent) {
    function __() { this.constructor = child; }
    __.prototype = parent.prototype;
    child.prototype = new __();
  };

  var addProperties = Rx.internals.addProperties = function (obj) {
    for(var sources = [], i = 1, len = arguments.length; i < len; i++) { sources.push(arguments[i]); }
    for (var idx = 0, ln = sources.length; idx < ln; idx++) {
      var source = sources[idx];
      for (var prop in source) {
        obj[prop] = source[prop];
      }
    }
  };

  // Rx Utils
  var addRef = Rx.internals.addRef = function (xs, r) {
    return new AnonymousObservable(function (observer) {
      return new BinaryDisposable(r.getDisposable(), xs.subscribe(observer));
    });
  };

  function arrayInitialize(count, factory) {
    var a = new Array(count);
    for (var i = 0; i < count; i++) {
      a[i] = factory();
    }
    return a;
  }

  function IndexedItem(id, value) {
    this.id = id;
    this.value = value;
  }

  IndexedItem.prototype.compareTo = function (other) {
    var c = this.value.compareTo(other.value);
    c === 0 && (c = this.id - other.id);
    return c;
  };

  var PriorityQueue = Rx.internals.PriorityQueue = function (capacity) {
    this.items = new Array(capacity);
    this.length = 0;
  };

  var priorityProto = PriorityQueue.prototype;
  priorityProto.isHigherPriority = function (left, right) {
    return this.items[left].compareTo(this.items[right]) < 0;
  };

  priorityProto.percolate = function (index) {
    if (index >= this.length || index < 0) { return; }
    var parent = index - 1 >> 1;
    if (parent < 0 || parent === index) { return; }
    if (this.isHigherPriority(index, parent)) {
      var temp = this.items[index];
      this.items[index] = this.items[parent];
      this.items[parent] = temp;
      this.percolate(parent);
    }
  };

  priorityProto.heapify = function (index) {
    +index || (index = 0);
    if (index >= this.length || index < 0) { return; }
    var left = 2 * index + 1,
        right = 2 * index + 2,
        first = index;
    if (left < this.length && this.isHigherPriority(left, first)) {
      first = left;
    }
    if (right < this.length && this.isHigherPriority(right, first)) {
      first = right;
    }
    if (first !== index) {
      var temp = this.items[index];
      this.items[index] = this.items[first];
      this.items[first] = temp;
      this.heapify(first);
    }
  };

  priorityProto.peek = function () { return this.items[0].value; };

  priorityProto.removeAt = function (index) {
    this.items[index] = this.items[--this.length];
    this.items[this.length] = undefined;
    this.heapify();
  };

  priorityProto.dequeue = function () {
    var result = this.peek();
    this.removeAt(0);
    return result;
  };

  priorityProto.enqueue = function (item) {
    var index = this.length++;
    this.items[index] = new IndexedItem(PriorityQueue.count++, item);
    this.percolate(index);
  };

  priorityProto.remove = function (item) {
    for (var i = 0; i < this.length; i++) {
      if (this.items[i].value === item) {
        this.removeAt(i);
        return true;
      }
    }
    return false;
  };
  PriorityQueue.count = 0;

  /**
   * Represents a group of disposable resources that are disposed together.
   * @constructor
   */
  var CompositeDisposable = Rx.CompositeDisposable = function () {
    var args = [], i, len;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
    } else {
      len = arguments.length;
      args = new Array(len);
      for(i = 0; i < len; i++) { args[i] = arguments[i]; }
    }
    this.disposables = args;
    this.isDisposed = false;
    this.length = args.length;
  };

  var CompositeDisposablePrototype = CompositeDisposable.prototype;

  /**
   * Adds a disposable to the CompositeDisposable or disposes the disposable if the CompositeDisposable is disposed.
   * @param {Mixed} item Disposable to add.
   */
  CompositeDisposablePrototype.add = function (item) {
    if (this.isDisposed) {
      item.dispose();
    } else {
      this.disposables.push(item);
      this.length++;
    }
  };

  /**
   * Removes and disposes the first occurrence of a disposable from the CompositeDisposable.
   * @param {Mixed} item Disposable to remove.
   * @returns {Boolean} true if found; false otherwise.
   */
  CompositeDisposablePrototype.remove = function (item) {
    var shouldDispose = false;
    if (!this.isDisposed) {
      var idx = this.disposables.indexOf(item);
      if (idx !== -1) {
        shouldDispose = true;
        this.disposables.splice(idx, 1);
        this.length--;
        item.dispose();
      }
    }
    return shouldDispose;
  };

  /**
   *  Disposes all disposables in the group and removes them from the group.
   */
  CompositeDisposablePrototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var len = this.disposables.length, currentDisposables = new Array(len);
      for(var i = 0; i < len; i++) { currentDisposables[i] = this.disposables[i]; }
      this.disposables = [];
      this.length = 0;

      for (i = 0; i < len; i++) {
        currentDisposables[i].dispose();
      }
    }
  };

  /**
   * Provides a set of static methods for creating Disposables.
   * @param {Function} dispose Action to run during the first call to dispose. The action is guaranteed to be run at most once.
   */
  var Disposable = Rx.Disposable = function (action) {
    this.isDisposed = false;
    this.action = action || noop;
  };

  /** Performs the task of cleaning up resources. */
  Disposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.action();
      this.isDisposed = true;
    }
  };

  /**
   * Creates a disposable object that invokes the specified action when disposed.
   * @param {Function} dispose Action to run during the first call to dispose. The action is guaranteed to be run at most once.
   * @return {Disposable} The disposable object that runs the given action upon disposal.
   */
  var disposableCreate = Disposable.create = function (action) { return new Disposable(action); };

  /**
   * Gets the disposable that does nothing when disposed.
   */
  var disposableEmpty = Disposable.empty = { dispose: noop };

  /**
   * Validates whether the given object is a disposable
   * @param {Object} Object to test whether it has a dispose method
   * @returns {Boolean} true if a disposable object, else false.
   */
  var isDisposable = Disposable.isDisposable = function (d) {
    return d && isFunction(d.dispose);
  };

  var checkDisposed = Disposable.checkDisposed = function (disposable) {
    if (disposable.isDisposed) { throw new ObjectDisposedError(); }
  };

  var disposableFixup = Disposable._fixup = function (result) {
    return isDisposable(result) ? result : disposableEmpty;
  };

  // Single assignment
  var SingleAssignmentDisposable = Rx.SingleAssignmentDisposable = function () {
    this.isDisposed = false;
    this.current = null;
  };
  SingleAssignmentDisposable.prototype.getDisposable = function () {
    return this.current;
  };
  SingleAssignmentDisposable.prototype.setDisposable = function (value) {
    if (this.current) { throw new Error('Disposable has already been assigned'); }
    var shouldDispose = this.isDisposed;
    !shouldDispose && (this.current = value);
    shouldDispose && value && value.dispose();
  };
  SingleAssignmentDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var old = this.current;
      this.current = null;
      old && old.dispose();
    }
  };

  // Multiple assignment disposable
  var SerialDisposable = Rx.SerialDisposable = function () {
    this.isDisposed = false;
    this.current = null;
  };
  SerialDisposable.prototype.getDisposable = function () {
    return this.current;
  };
  SerialDisposable.prototype.setDisposable = function (value) {
    var shouldDispose = this.isDisposed;
    if (!shouldDispose) {
      var old = this.current;
      this.current = value;
    }
    old && old.dispose();
    shouldDispose && value && value.dispose();
  };
  SerialDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var old = this.current;
      this.current = null;
    }
    old && old.dispose();
  };

  var BinaryDisposable = Rx.BinaryDisposable = function (first, second) {
    this._first = first;
    this._second = second;
    this.isDisposed = false;
  };

  BinaryDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      var old1 = this._first;
      this._first = null;
      old1 && old1.dispose();
      var old2 = this._second;
      this._second = null;
      old2 && old2.dispose();
    }
  };

  var NAryDisposable = Rx.NAryDisposable = function (disposables) {
    this._disposables = disposables;
    this.isDisposed = false;
  };

  NAryDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      for (var i = 0, len = this._disposables.length; i < len; i++) {
        this._disposables[i].dispose();
      }
      this._disposables.length = 0;
    }
  };

  /**
   * Represents a disposable resource that only disposes its underlying disposable resource when all dependent disposable objects have been disposed.
   */
  var RefCountDisposable = Rx.RefCountDisposable = (function () {

    function InnerDisposable(disposable) {
      this.disposable = disposable;
      this.disposable.count++;
      this.isInnerDisposed = false;
    }

    InnerDisposable.prototype.dispose = function () {
      if (!this.disposable.isDisposed && !this.isInnerDisposed) {
        this.isInnerDisposed = true;
        this.disposable.count--;
        if (this.disposable.count === 0 && this.disposable.isPrimaryDisposed) {
          this.disposable.isDisposed = true;
          this.disposable.underlyingDisposable.dispose();
        }
      }
    };

    /**
     * Initializes a new instance of the RefCountDisposable with the specified disposable.
     * @constructor
     * @param {Disposable} disposable Underlying disposable.
      */
    function RefCountDisposable(disposable) {
      this.underlyingDisposable = disposable;
      this.isDisposed = false;
      this.isPrimaryDisposed = false;
      this.count = 0;
    }

    /**
     * Disposes the underlying disposable only when all dependent disposables have been disposed
     */
    RefCountDisposable.prototype.dispose = function () {
      if (!this.isDisposed && !this.isPrimaryDisposed) {
        this.isPrimaryDisposed = true;
        if (this.count === 0) {
          this.isDisposed = true;
          this.underlyingDisposable.dispose();
        }
      }
    };

    /**
     * Returns a dependent disposable that when disposed decreases the refcount on the underlying disposable.
     * @returns {Disposable} A dependent disposable contributing to the reference count that manages the underlying disposable's lifetime.
     */
    RefCountDisposable.prototype.getDisposable = function () {
      return this.isDisposed ? disposableEmpty : new InnerDisposable(this);
    };

    return RefCountDisposable;
  })();

  function ScheduledDisposable(scheduler, disposable) {
    this.scheduler = scheduler;
    this.disposable = disposable;
    this.isDisposed = false;
  }

  function scheduleItem(s, self) {
    if (!self.isDisposed) {
      self.isDisposed = true;
      self.disposable.dispose();
    }
  }

  ScheduledDisposable.prototype.dispose = function () {
    this.scheduler.schedule(this, scheduleItem);
  };

  var ScheduledItem = Rx.internals.ScheduledItem = function (scheduler, state, action, dueTime, comparer) {
    this.scheduler = scheduler;
    this.state = state;
    this.action = action;
    this.dueTime = dueTime;
    this.comparer = comparer || defaultSubComparer;
    this.disposable = new SingleAssignmentDisposable();
  };

  ScheduledItem.prototype.invoke = function () {
    this.disposable.setDisposable(this.invokeCore());
  };

  ScheduledItem.prototype.compareTo = function (other) {
    return this.comparer(this.dueTime, other.dueTime);
  };

  ScheduledItem.prototype.isCancelled = function () {
    return this.disposable.isDisposed;
  };

  ScheduledItem.prototype.invokeCore = function () {
    return disposableFixup(this.action(this.scheduler, this.state));
  };

  /** Provides a set of static properties to access commonly used schedulers. */
  var Scheduler = Rx.Scheduler = (function () {

    function Scheduler() { }

    /** Determines whether the given object is a scheduler */
    Scheduler.isScheduler = function (s) {
      return s instanceof Scheduler;
    };

    var schedulerProto = Scheduler.prototype;

    /**
   * Schedules an action to be executed.
   * @param state State passed to the action to be executed.
   * @param {Function} action Action to be executed.
   * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
   */
    schedulerProto.schedule = function (state, action) {
      throw new NotImplementedError();
    };

  /**
   * Schedules an action to be executed after dueTime.
   * @param state State passed to the action to be executed.
   * @param {Function} action Action to be executed.
   * @param {Number} dueTime Relative time after which to execute the action.
   * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
   */
    schedulerProto.scheduleFuture = function (state, dueTime, action) {
      var dt = dueTime;
      dt instanceof Date && (dt = dt - this.now());
      dt = Scheduler.normalize(dt);

      if (dt === 0) { return this.schedule(state, action); }

      return this._scheduleFuture(state, dt, action);
    };

    schedulerProto._scheduleFuture = function (state, dueTime, action) {
      throw new NotImplementedError();
    };

    /** Gets the current time according to the local machine's system clock. */
    Scheduler.now = defaultNow;

    /** Gets the current time according to the local machine's system clock. */
    Scheduler.prototype.now = defaultNow;

    /**
     * Normalizes the specified TimeSpan value to a positive value.
     * @param {Number} timeSpan The time span value to normalize.
     * @returns {Number} The specified TimeSpan value if it is zero or positive; otherwise, 0
     */
    Scheduler.normalize = function (timeSpan) {
      timeSpan < 0 && (timeSpan = 0);
      return timeSpan;
    };

    return Scheduler;
  }());

  var normalizeTime = Scheduler.normalize, isScheduler = Scheduler.isScheduler;

  (function (schedulerProto) {

    function invokeRecImmediate(scheduler, pair) {
      var state = pair[0], action = pair[1], group = new CompositeDisposable();
      action(state, innerAction);
      return group;

      function innerAction(state2) {
        var isAdded = false, isDone = false;

        var d = scheduler.schedule(state2, scheduleWork);
        if (!isDone) {
          group.add(d);
          isAdded = true;
        }

        function scheduleWork(_, state3) {
          if (isAdded) {
            group.remove(d);
          } else {
            isDone = true;
          }
          action(state3, innerAction);
          return disposableEmpty;
        }
      }
    }

    function invokeRecDate(scheduler, pair) {
      var state = pair[0], action = pair[1], group = new CompositeDisposable();
      action(state, innerAction);
      return group;

      function innerAction(state2, dueTime1) {
        var isAdded = false, isDone = false;

        var d = scheduler.scheduleFuture(state2, dueTime1, scheduleWork);
        if (!isDone) {
          group.add(d);
          isAdded = true;
        }

        function scheduleWork(_, state3) {
          if (isAdded) {
            group.remove(d);
          } else {
            isDone = true;
          }
          action(state3, innerAction);
          return disposableEmpty;
        }
      }
    }

    /**
     * Schedules an action to be executed recursively.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in recursive invocation state.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursive = function (state, action) {
      return this.schedule([state, action], invokeRecImmediate);
    };

    /**
     * Schedules an action to be executed recursively after a specified relative or absolute due time.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Function} action Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in the recursive due time and invocation state.
     * @param {Number | Date} dueTime Relative or absolute time after which to execute the action for the first time.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    schedulerProto.scheduleRecursiveFuture = function (state, dueTime, action) {
      return this.scheduleFuture([state, action], dueTime, invokeRecDate);
    };

  }(Scheduler.prototype));

  (function (schedulerProto) {

    /**
     * Schedules a periodic piece of work by dynamically discovering the scheduler's capabilities. The periodic task will be scheduled using window.setInterval for the base implementation.
     * @param {Mixed} state Initial state passed to the action upon the first iteration.
     * @param {Number} period Period for running the work periodically.
     * @param {Function} action Action to be executed, potentially updating the state.
     * @returns {Disposable} The disposable object used to cancel the scheduled recurring action (best effort).
     */
    schedulerProto.schedulePeriodic = function(state, period, action) {
      if (typeof root.setInterval === 'undefined') { throw new NotSupportedError(); }
      period = normalizeTime(period);
      var s = state, id = root.setInterval(function () { s = action(s); }, period);
      return disposableCreate(function () { root.clearInterval(id); });
    };

  }(Scheduler.prototype));

  (function (schedulerProto) {
    /**
     * Returns a scheduler that wraps the original scheduler, adding exception handling for scheduled actions.
     * @param {Function} handler Handler that's run if an exception is caught. The exception will be rethrown if the handler returns false.
     * @returns {Scheduler} Wrapper around the original scheduler, enforcing exception handling.
     */
    schedulerProto.catchError = schedulerProto['catch'] = function (handler) {
      return new CatchScheduler(this, handler);
    };
  }(Scheduler.prototype));

  var SchedulePeriodicRecursive = Rx.internals.SchedulePeriodicRecursive = (function () {
    function createTick(self) {
      return function tick(command, recurse) {
        recurse(0, self._period);
        var state = tryCatch(self._action)(self._state);
        if (state === errorObj) {
          self._cancel.dispose();
          thrower(state.e);
        }
        self._state = state;
      };
    }

    function SchedulePeriodicRecursive(scheduler, state, period, action) {
      this._scheduler = scheduler;
      this._state = state;
      this._period = period;
      this._action = action;
    }

    SchedulePeriodicRecursive.prototype.start = function () {
      var d = new SingleAssignmentDisposable();
      this._cancel = d;
      d.setDisposable(this._scheduler.scheduleRecursiveFuture(0, this._period, createTick(this)));

      return d;
    };

    return SchedulePeriodicRecursive;
  }());

  /** Gets a scheduler that schedules work immediately on the current thread. */
   var ImmediateScheduler = (function (__super__) {
    inherits(ImmediateScheduler, __super__);
    function ImmediateScheduler() {
      __super__.call(this);
    }

    ImmediateScheduler.prototype.schedule = function (state, action) {
      return disposableFixup(action(this, state));
    };

    return ImmediateScheduler;
  }(Scheduler));

  var immediateScheduler = Scheduler.immediate = new ImmediateScheduler();

  /**
   * Gets a scheduler that schedules work as soon as possible on the current thread.
   */
  var CurrentThreadScheduler = (function (__super__) {
    var queue;

    function runTrampoline () {
      while (queue.length > 0) {
        var item = queue.dequeue();
        !item.isCancelled() && item.invoke();
      }
    }

    inherits(CurrentThreadScheduler, __super__);
    function CurrentThreadScheduler() {
      __super__.call(this);
    }

    CurrentThreadScheduler.prototype.schedule = function (state, action) {
      var si = new ScheduledItem(this, state, action, this.now());

      if (!queue) {
        queue = new PriorityQueue(4);
        queue.enqueue(si);

        var result = tryCatch(runTrampoline)();
        queue = null;
        if (result === errorObj) { thrower(result.e); }
      } else {
        queue.enqueue(si);
      }
      return si.disposable;
    };

    CurrentThreadScheduler.prototype.scheduleRequired = function () { return !queue; };

    return CurrentThreadScheduler;
  }(Scheduler));

  var currentThreadScheduler = Scheduler.currentThread = new CurrentThreadScheduler();

  var scheduleMethod, clearMethod;

  var localTimer = (function () {
    var localSetTimeout, localClearTimeout = noop;
    if (!!root.setTimeout) {
      localSetTimeout = root.setTimeout;
      localClearTimeout = root.clearTimeout;
    } else if (!!root.WScript) {
      localSetTimeout = function (fn, time) {
        root.WScript.Sleep(time);
        fn();
      };
    } else {
      throw new NotSupportedError();
    }

    return {
      setTimeout: localSetTimeout,
      clearTimeout: localClearTimeout
    };
  }());
  var localSetTimeout = localTimer.setTimeout,
    localClearTimeout = localTimer.clearTimeout;

  (function () {

    var nextHandle = 1, tasksByHandle = {}, currentlyRunning = false;

    clearMethod = function (handle) {
      delete tasksByHandle[handle];
    };

    function runTask(handle) {
      if (currentlyRunning) {
        localSetTimeout(function () { runTask(handle); }, 0);
      } else {
        var task = tasksByHandle[handle];
        if (task) {
          currentlyRunning = true;
          var result = tryCatch(task)();
          clearMethod(handle);
          currentlyRunning = false;
          if (result === errorObj) { thrower(result.e); }
        }
      }
    }

    var reNative = new RegExp('^' +
      String(toString)
        .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
        .replace(/toString| for [^\]]+/g, '.*?') + '$'
    );

    var setImmediate = typeof (setImmediate = freeGlobal && moduleExports && freeGlobal.setImmediate) == 'function' &&
      !reNative.test(setImmediate) && setImmediate;

    function postMessageSupported () {
      // Ensure not in a worker
      if (!root.postMessage || root.importScripts) { return false; }
      var isAsync = false, oldHandler = root.onmessage;
      // Test for async
      root.onmessage = function () { isAsync = true; };
      root.postMessage('', '*');
      root.onmessage = oldHandler;

      return isAsync;
    }

    // Use in order, setImmediate, nextTick, postMessage, MessageChannel, script readystatechanged, setTimeout
    if (isFunction(setImmediate)) {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        setImmediate(function () { runTask(id); });

        return id;
      };
    } else if (typeof process !== 'undefined' && {}.toString.call(process) === '[object process]') {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        process.nextTick(function () { runTask(id); });

        return id;
      };
    } else if (postMessageSupported()) {
      var MSG_PREFIX = 'ms.rx.schedule' + Math.random();

      var onGlobalPostMessage = function (event) {
        // Only if we're a match to avoid any other global events
        if (typeof event.data === 'string' && event.data.substring(0, MSG_PREFIX.length) === MSG_PREFIX) {
          runTask(event.data.substring(MSG_PREFIX.length));
        }
      };

      root.addEventListener('message', onGlobalPostMessage, false);

      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        root.postMessage(MSG_PREFIX + id, '*');
        return id;
      };
    } else if (!!root.MessageChannel) {
      var channel = new root.MessageChannel();

      channel.port1.onmessage = function (e) { runTask(e.data); };

      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        channel.port2.postMessage(id);
        return id;
      };
    } else if ('document' in root && 'onreadystatechange' in root.document.createElement('script')) {

      scheduleMethod = function (action) {
        var scriptElement = root.document.createElement('script');
        var id = nextHandle++;
        tasksByHandle[id] = action;

        scriptElement.onreadystatechange = function () {
          runTask(id);
          scriptElement.onreadystatechange = null;
          scriptElement.parentNode.removeChild(scriptElement);
          scriptElement = null;
        };
        root.document.documentElement.appendChild(scriptElement);
        return id;
      };

    } else {
      scheduleMethod = function (action) {
        var id = nextHandle++;
        tasksByHandle[id] = action;
        localSetTimeout(function () {
          runTask(id);
        }, 0);

        return id;
      };
    }
  }());

  /**
   * Gets a scheduler that schedules work via a timed callback based upon platform.
   */
   var DefaultScheduler = (function (__super__) {
     inherits(DefaultScheduler, __super__);
     function DefaultScheduler() {
       __super__.call(this);
     }

     function scheduleAction(disposable, action, scheduler, state) {
       return function schedule() {
         disposable.setDisposable(Disposable._fixup(action(scheduler, state)));
       };
     }

     function ClearDisposable(id) {
       this._id = id;
       this.isDisposed = false;
     }

     ClearDisposable.prototype.dispose = function () {
       if (!this.isDisposed) {
         this.isDisposed = true;
         clearMethod(this._id);
       }
     };

     function LocalClearDisposable(id) {
       this._id = id;
       this.isDisposed = false;
     }

     LocalClearDisposable.prototype.dispose = function () {
       if (!this.isDisposed) {
         this.isDisposed = true;
         localClearTimeout(this._id);
       }
     };

    DefaultScheduler.prototype.schedule = function (state, action) {
      var disposable = new SingleAssignmentDisposable(),
          id = scheduleMethod(scheduleAction(disposable, action, this, state));
      return new BinaryDisposable(disposable, new ClearDisposable(id));
    };

    DefaultScheduler.prototype._scheduleFuture = function (state, dueTime, action) {
      if (dueTime === 0) { return this.schedule(state, action); }
      var disposable = new SingleAssignmentDisposable(),
          id = localSetTimeout(scheduleAction(disposable, action, this, state), dueTime);
      return new BinaryDisposable(disposable, new LocalClearDisposable(id));
    };

    function scheduleLongRunning(state, action, disposable) {
      return function () { action(state, disposable); };
    }

    DefaultScheduler.prototype.scheduleLongRunning = function (state, action) {
      var disposable = disposableCreate(noop);
      scheduleMethod(scheduleLongRunning(state, action, disposable));
      return disposable;
    };

    return DefaultScheduler;
  }(Scheduler));

  var defaultScheduler = Scheduler['default'] = Scheduler.async = new DefaultScheduler();

  var CatchScheduler = (function (__super__) {
    inherits(CatchScheduler, __super__);

    function CatchScheduler(scheduler, handler) {
      this._scheduler = scheduler;
      this._handler = handler;
      this._recursiveOriginal = null;
      this._recursiveWrapper = null;
      __super__.call(this);
    }

    CatchScheduler.prototype.schedule = function (state, action) {
      return this._scheduler.schedule(state, this._wrap(action));
    };

    CatchScheduler.prototype._scheduleFuture = function (state, dueTime, action) {
      return this._scheduler.schedule(state, dueTime, this._wrap(action));
    };

    CatchScheduler.prototype.now = function () { return this._scheduler.now(); };

    CatchScheduler.prototype._clone = function (scheduler) {
        return new CatchScheduler(scheduler, this._handler);
    };

    CatchScheduler.prototype._wrap = function (action) {
      var parent = this;
      return function (self, state) {
        var res = tryCatch(action)(parent._getRecursiveWrapper(self), state);
        if (res === errorObj) {
          if (!parent._handler(res.e)) { thrower(res.e); }
          return disposableEmpty;
        }
        return disposableFixup(res);
      };
    };

    CatchScheduler.prototype._getRecursiveWrapper = function (scheduler) {
      if (this._recursiveOriginal !== scheduler) {
        this._recursiveOriginal = scheduler;
        var wrapper = this._clone(scheduler);
        wrapper._recursiveOriginal = scheduler;
        wrapper._recursiveWrapper = wrapper;
        this._recursiveWrapper = wrapper;
      }
      return this._recursiveWrapper;
    };

    CatchScheduler.prototype.schedulePeriodic = function (state, period, action) {
      var self = this, failed = false, d = new SingleAssignmentDisposable();

      d.setDisposable(this._scheduler.schedulePeriodic(state, period, function (state1) {
        if (failed) { return null; }
        var res = tryCatch(action)(state1);
        if (res === errorObj) {
          failed = true;
          if (!self._handler(res.e)) { thrower(res.e); }
          d.dispose();
          return null;
        }
        return res;
      }));

      return d;
    };

    return CatchScheduler;
  }(Scheduler));

  /**
   *  Represents a notification to an observer.
   */
  var Notification = Rx.Notification = (function () {
    function Notification() {

    }

    Notification.prototype._accept = function (onNext, onError, onCompleted) {
      throw new NotImplementedError();
    };

    Notification.prototype._acceptObserver = function (onNext, onError, onCompleted) {
      throw new NotImplementedError();
    };

    /**
     * Invokes the delegate corresponding to the notification or the observer's method corresponding to the notification and returns the produced result.
     * @param {Function | Observer} observerOrOnNext Function to invoke for an OnNext notification or Observer to invoke the notification on..
     * @param {Function} onError Function to invoke for an OnError notification.
     * @param {Function} onCompleted Function to invoke for an OnCompleted notification.
     * @returns {Any} Result produced by the observation.
     */
    Notification.prototype.accept = function (observerOrOnNext, onError, onCompleted) {
      return observerOrOnNext && typeof observerOrOnNext === 'object' ?
        this._acceptObserver(observerOrOnNext) :
        this._accept(observerOrOnNext, onError, onCompleted);
    };

    /**
     * Returns an observable sequence with a single notification.
     *
     * @memberOf Notifications
     * @param {Scheduler} [scheduler] Scheduler to send out the notification calls on.
     * @returns {Observable} The observable sequence that surfaces the behavior of the notification upon subscription.
     */
    Notification.prototype.toObservable = function (scheduler) {
      var self = this;
      isScheduler(scheduler) || (scheduler = immediateScheduler);
      return new AnonymousObservable(function (o) {
        return scheduler.schedule(self, function (_, notification) {
          notification._acceptObserver(o);
          notification.kind === 'N' && o.onCompleted();
        });
      });
    };

    return Notification;
  })();

  var OnNextNotification = (function (__super__) {
    inherits(OnNextNotification, __super__);
    function OnNextNotification(value) {
      this.value = value;
      this.kind = 'N';
    }

    OnNextNotification.prototype._accept = function (onNext) {
      return onNext(this.value);
    };

    OnNextNotification.prototype._acceptObserver = function (o) {
      return o.onNext(this.value);
    };

    OnNextNotification.prototype.toString = function () {
      return 'OnNext(' + this.value + ')';
    };

    return OnNextNotification;
  }(Notification));

  var OnErrorNotification = (function (__super__) {
    inherits(OnErrorNotification, __super__);
    function OnErrorNotification(error) {
      this.error = error;
      this.kind = 'E';
    }

    OnErrorNotification.prototype._accept = function (onNext, onError) {
      return onError(this.error);
    };

    OnErrorNotification.prototype._acceptObserver = function (o) {
      return o.onError(this.error);
    };

    OnErrorNotification.prototype.toString = function () {
      return 'OnError(' + this.error + ')';
    };

    return OnErrorNotification;
  }(Notification));

  var OnCompletedNotification = (function (__super__) {
    inherits(OnCompletedNotification, __super__);
    function OnCompletedNotification() {
      this.kind = 'C';
    }

    OnCompletedNotification.prototype._accept = function (onNext, onError, onCompleted) {
      return onCompleted();
    };

    OnCompletedNotification.prototype._acceptObserver = function (o) {
      return o.onCompleted();
    };

    OnCompletedNotification.prototype.toString = function () {
      return 'OnCompleted()';
    };

    return OnCompletedNotification;
  }(Notification));

  /**
   * Creates an object that represents an OnNext notification to an observer.
   * @param {Any} value The value contained in the notification.
   * @returns {Notification} The OnNext notification containing the value.
   */
  var notificationCreateOnNext = Notification.createOnNext = function (value) {
    return new OnNextNotification(value);
  };

  /**
   * Creates an object that represents an OnError notification to an observer.
   * @param {Any} error The exception contained in the notification.
   * @returns {Notification} The OnError notification containing the exception.
   */
  var notificationCreateOnError = Notification.createOnError = function (error) {
    return new OnErrorNotification(error);
  };

  /**
   * Creates an object that represents an OnCompleted notification to an observer.
   * @returns {Notification} The OnCompleted notification.
   */
  var notificationCreateOnCompleted = Notification.createOnCompleted = function () {
    return new OnCompletedNotification();
  };

  /**
   * Supports push-style iteration over an observable sequence.
   */
  var Observer = Rx.Observer = function () { };

  /**
   *  Creates a notification callback from an observer.
   * @returns The action that forwards its input notification to the underlying observer.
   */
  Observer.prototype.toNotifier = function () {
    var observer = this;
    return function (n) { return n.accept(observer); };
  };

  /**
   *  Hides the identity of an observer.
   * @returns An observer that hides the identity of the specified observer.
   */
  Observer.prototype.asObserver = function () {
    var self = this;
    return new AnonymousObserver(
      function (x) { self.onNext(x); },
      function (err) { self.onError(err); },
      function () { self.onCompleted(); });
  };

  /**
   *  Checks access to the observer for grammar violations. This includes checking for multiple OnError or OnCompleted calls, as well as reentrancy in any of the observer methods.
   *  If a violation is detected, an Error is thrown from the offending observer method call.
   * @returns An observer that checks callbacks invocations against the observer grammar and, if the checks pass, forwards those to the specified observer.
   */
  Observer.prototype.checked = function () { return new CheckedObserver(this); };

  /**
   *  Creates an observer from the specified OnNext, along with optional OnError, and OnCompleted actions.
   * @param {Function} [onNext] Observer's OnNext action implementation.
   * @param {Function} [onError] Observer's OnError action implementation.
   * @param {Function} [onCompleted] Observer's OnCompleted action implementation.
   * @returns {Observer} The observer object implemented using the given actions.
   */
  var observerCreate = Observer.create = function (onNext, onError, onCompleted) {
    onNext || (onNext = noop);
    onError || (onError = defaultError);
    onCompleted || (onCompleted = noop);
    return new AnonymousObserver(onNext, onError, onCompleted);
  };

  /**
   *  Creates an observer from a notification callback.
   * @param {Function} handler Action that handles a notification.
   * @returns The observer object that invokes the specified handler using a notification corresponding to each message it receives.
   */
  Observer.fromNotifier = function (handler, thisArg) {
    var cb = bindCallback(handler, thisArg, 1);
    return new AnonymousObserver(function (x) {
      return cb(notificationCreateOnNext(x));
    }, function (e) {
      return cb(notificationCreateOnError(e));
    }, function () {
      return cb(notificationCreateOnCompleted());
    });
  };

  /**
   * Schedules the invocation of observer methods on the given scheduler.
   * @param {Scheduler} scheduler Scheduler to schedule observer messages on.
   * @returns {Observer} Observer whose messages are scheduled on the given scheduler.
   */
  Observer.prototype.notifyOn = function (scheduler) {
    return new ObserveOnObserver(scheduler, this);
  };

  Observer.prototype.makeSafe = function(disposable) {
    return new AnonymousSafeObserver(this._onNext, this._onError, this._onCompleted, disposable);
  };

  /**
   * Abstract base class for implementations of the Observer class.
   * This base class enforces the grammar of observers where OnError and OnCompleted are terminal messages.
   */
  var AbstractObserver = Rx.internals.AbstractObserver = (function (__super__) {
    inherits(AbstractObserver, __super__);

    /**
     * Creates a new observer in a non-stopped state.
     */
    function AbstractObserver() {
      this.isStopped = false;
    }

    // Must be implemented by other observers
    AbstractObserver.prototype.next = notImplemented;
    AbstractObserver.prototype.error = notImplemented;
    AbstractObserver.prototype.completed = notImplemented;

    /**
     * Notifies the observer of a new element in the sequence.
     * @param {Any} value Next element in the sequence.
     */
    AbstractObserver.prototype.onNext = function (value) {
      !this.isStopped && this.next(value);
    };

    /**
     * Notifies the observer that an exception has occurred.
     * @param {Any} error The error that has occurred.
     */
    AbstractObserver.prototype.onError = function (error) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.error(error);
      }
    };

    /**
     * Notifies the observer of the end of the sequence.
     */
    AbstractObserver.prototype.onCompleted = function () {
      if (!this.isStopped) {
        this.isStopped = true;
        this.completed();
      }
    };

    /**
     * Disposes the observer, causing it to transition to the stopped state.
     */
    AbstractObserver.prototype.dispose = function () { this.isStopped = true; };

    AbstractObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.error(e);
        return true;
      }

      return false;
    };

    return AbstractObserver;
  }(Observer));

  /**
   * Class to create an Observer instance from delegate-based implementations of the on* methods.
   */
  var AnonymousObserver = Rx.AnonymousObserver = (function (__super__) {
    inherits(AnonymousObserver, __super__);

    /**
     * Creates an observer from the specified OnNext, OnError, and OnCompleted actions.
     * @param {Any} onNext Observer's OnNext action implementation.
     * @param {Any} onError Observer's OnError action implementation.
     * @param {Any} onCompleted Observer's OnCompleted action implementation.
     */
    function AnonymousObserver(onNext, onError, onCompleted) {
      __super__.call(this);
      this._onNext = onNext;
      this._onError = onError;
      this._onCompleted = onCompleted;
    }

    /**
     * Calls the onNext action.
     * @param {Any} value Next element in the sequence.
     */
    AnonymousObserver.prototype.next = function (value) {
      this._onNext(value);
    };

    /**
     * Calls the onError action.
     * @param {Any} error The error that has occurred.
     */
    AnonymousObserver.prototype.error = function (error) {
      this._onError(error);
    };

    /**
     *  Calls the onCompleted action.
     */
    AnonymousObserver.prototype.completed = function () {
      this._onCompleted();
    };

    return AnonymousObserver;
  }(AbstractObserver));

  var CheckedObserver = (function (__super__) {
    inherits(CheckedObserver, __super__);

    function CheckedObserver(observer) {
      __super__.call(this);
      this._observer = observer;
      this._state = 0; // 0 - idle, 1 - busy, 2 - done
    }

    var CheckedObserverPrototype = CheckedObserver.prototype;

    CheckedObserverPrototype.onNext = function (value) {
      this.checkAccess();
      var res = tryCatch(this._observer.onNext).call(this._observer, value);
      this._state = 0;
      res === errorObj && thrower(res.e);
    };

    CheckedObserverPrototype.onError = function (err) {
      this.checkAccess();
      var res = tryCatch(this._observer.onError).call(this._observer, err);
      this._state = 2;
      res === errorObj && thrower(res.e);
    };

    CheckedObserverPrototype.onCompleted = function () {
      this.checkAccess();
      var res = tryCatch(this._observer.onCompleted).call(this._observer);
      this._state = 2;
      res === errorObj && thrower(res.e);
    };

    CheckedObserverPrototype.checkAccess = function () {
      if (this._state === 1) { throw new Error('Re-entrancy detected'); }
      if (this._state === 2) { throw new Error('Observer completed'); }
      if (this._state === 0) { this._state = 1; }
    };

    return CheckedObserver;
  }(Observer));

  var ScheduledObserver = Rx.internals.ScheduledObserver = (function (__super__) {
    inherits(ScheduledObserver, __super__);

    function ScheduledObserver(scheduler, observer) {
      __super__.call(this);
      this.scheduler = scheduler;
      this.observer = observer;
      this.isAcquired = false;
      this.hasFaulted = false;
      this.queue = [];
      this.disposable = new SerialDisposable();
    }

    function enqueueNext(observer, x) { return function () { observer.onNext(x); }; }
    function enqueueError(observer, e) { return function () { observer.onError(e); }; }
    function enqueueCompleted(observer) { return function () { observer.onCompleted(); }; }

    ScheduledObserver.prototype.next = function (x) {
      this.queue.push(enqueueNext(this.observer, x));
    };

    ScheduledObserver.prototype.error = function (e) {
      this.queue.push(enqueueError(this.observer, e));
    };

    ScheduledObserver.prototype.completed = function () {
      this.queue.push(enqueueCompleted(this.observer));
    };


    function scheduleMethod(state, recurse) {
      var work;
      if (state.queue.length > 0) {
        work = state.queue.shift();
      } else {
        state.isAcquired = false;
        return;
      }
      var res = tryCatch(work)();
      if (res === errorObj) {
        state.queue = [];
        state.hasFaulted = true;
        return thrower(res.e);
      }
      recurse(state);
    }

    ScheduledObserver.prototype.ensureActive = function () {
      var isOwner = false;
      if (!this.hasFaulted && this.queue.length > 0) {
        isOwner = !this.isAcquired;
        this.isAcquired = true;
      }
      isOwner &&
        this.disposable.setDisposable(this.scheduler.scheduleRecursive(this, scheduleMethod));
    };

    ScheduledObserver.prototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      this.disposable.dispose();
    };

    return ScheduledObserver;
  }(AbstractObserver));

  var ObserveOnObserver = (function (__super__) {
    inherits(ObserveOnObserver, __super__);

    function ObserveOnObserver(scheduler, observer, cancel) {
      __super__.call(this, scheduler, observer);
      this._cancel = cancel;
    }

    ObserveOnObserver.prototype.next = function (value) {
      __super__.prototype.next.call(this, value);
      this.ensureActive();
    };

    ObserveOnObserver.prototype.error = function (e) {
      __super__.prototype.error.call(this, e);
      this.ensureActive();
    };

    ObserveOnObserver.prototype.completed = function () {
      __super__.prototype.completed.call(this);
      this.ensureActive();
    };

    ObserveOnObserver.prototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      this._cancel && this._cancel.dispose();
      this._cancel = null;
    };

    return ObserveOnObserver;
  })(ScheduledObserver);

  var observableProto;

  /**
   * Represents a push-style collection.
   */
  var Observable = Rx.Observable = (function () {

    function makeSubscribe(self, subscribe) {
      return function (o) {
        var oldOnError = o.onError;
        o.onError = function (e) {
          makeStackTraceLong(e, self);
          oldOnError.call(o, e);
        };

        return subscribe.call(self, o);
      };
    }

    function Observable() {
      if (Rx.config.longStackSupport && hasStacks) {
        var oldSubscribe = this._subscribe;
        var e = tryCatch(thrower)(new Error()).e;
        this.stack = e.stack.substring(e.stack.indexOf('\n') + 1);
        this._subscribe = makeSubscribe(this, oldSubscribe);
      }
    }

    observableProto = Observable.prototype;

    /**
    * Determines whether the given object is an Observable
    * @param {Any} An object to determine whether it is an Observable
    * @returns {Boolean} true if an Observable, else false.
    */
    Observable.isObservable = function (o) {
      return o && isFunction(o.subscribe);
    };

    /**
     *  Subscribes an o to the observable sequence.
     *  @param {Mixed} [oOrOnNext] The object that is to receive notifications or an action to invoke for each element in the observable sequence.
     *  @param {Function} [onError] Action to invoke upon exceptional termination of the observable sequence.
     *  @param {Function} [onCompleted] Action to invoke upon graceful termination of the observable sequence.
     *  @returns {Diposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribe = observableProto.forEach = function (oOrOnNext, onError, onCompleted) {
      return this._subscribe(typeof oOrOnNext === 'object' ?
        oOrOnNext :
        observerCreate(oOrOnNext, onError, onCompleted));
    };

    /**
     * Subscribes to the next value in the sequence with an optional "this" argument.
     * @param {Function} onNext The function to invoke on each element in the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnNext = function (onNext, thisArg) {
      return this._subscribe(observerCreate(typeof thisArg !== 'undefined' ? function(x) { onNext.call(thisArg, x); } : onNext));
    };

    /**
     * Subscribes to an exceptional condition in the sequence with an optional "this" argument.
     * @param {Function} onError The function to invoke upon exceptional termination of the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnError = function (onError, thisArg) {
      return this._subscribe(observerCreate(null, typeof thisArg !== 'undefined' ? function(e) { onError.call(thisArg, e); } : onError));
    };

    /**
     * Subscribes to the next value in the sequence with an optional "this" argument.
     * @param {Function} onCompleted The function to invoke upon graceful termination of the observable sequence.
     * @param {Any} [thisArg] Object to use as this when executing callback.
     * @returns {Disposable} A disposable handling the subscriptions and unsubscriptions.
     */
    observableProto.subscribeOnCompleted = function (onCompleted, thisArg) {
      return this._subscribe(observerCreate(null, null, typeof thisArg !== 'undefined' ? function() { onCompleted.call(thisArg); } : onCompleted));
    };

    return Observable;
  })();

  var ObservableBase = Rx.ObservableBase = (function (__super__) {
    inherits(ObservableBase, __super__);

    function fixSubscriber(subscriber) {
      return subscriber && isFunction(subscriber.dispose) ? subscriber :
        isFunction(subscriber) ? disposableCreate(subscriber) : disposableEmpty;
    }

    function setDisposable(s, state) {
      var ado = state[0], self = state[1];
      var sub = tryCatch(self.subscribeCore).call(self, ado);
      if (sub === errorObj && !ado.fail(errorObj.e)) { thrower(errorObj.e); }
      ado.setDisposable(fixSubscriber(sub));
    }

    function ObservableBase() {
      __super__.call(this);
    }

    ObservableBase.prototype._subscribe = function (o) {
      var ado = new AutoDetachObserver(o), state = [ado, this];

      if (currentThreadScheduler.scheduleRequired()) {
        currentThreadScheduler.schedule(state, setDisposable);
      } else {
        setDisposable(null, state);
      }
      return ado;
    };

    ObservableBase.prototype.subscribeCore = notImplemented;

    return ObservableBase;
  }(Observable));

var FlatMapObservable = Rx.FlatMapObservable = (function(__super__) {

    inherits(FlatMapObservable, __super__);

    function FlatMapObservable(source, selector, resultSelector, thisArg) {
      this.resultSelector = isFunction(resultSelector) ? resultSelector : null;
      this.selector = bindCallback(isFunction(selector) ? selector : function() { return selector; }, thisArg, 3);
      this.source = source;
      __super__.call(this);
    }

    FlatMapObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o, this.selector, this.resultSelector, this));
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(observer, selector, resultSelector, source) {
      this.i = 0;
      this.selector = selector;
      this.resultSelector = resultSelector;
      this.source = source;
      this.o = observer;
      AbstractObserver.call(this);
    }

    InnerObserver.prototype._wrapResult = function(result, x, i) {
      return this.resultSelector ?
        result.map(function(y, i2) { return this.resultSelector(x, y, i, i2); }, this) :
        result;
    };

    InnerObserver.prototype.next = function(x) {
      var i = this.i++;
      var result = tryCatch(this.selector)(x, i, this.source);
      if (result === errorObj) { return this.o.onError(result.e); }

      isPromise(result) && (result = observableFromPromise(result));
      (isArrayLike(result) || isIterable(result)) && (result = Observable.from(result));
      this.o.onNext(this._wrapResult(result, x, i));
    };

    InnerObserver.prototype.error = function(e) { this.o.onError(e); };

    InnerObserver.prototype.completed = function() { this.o.onCompleted(); };

    return FlatMapObservable;

}(ObservableBase));

  var Enumerable = Rx.internals.Enumerable = function () { };

  function IsDisposedDisposable(state) {
    this._s = state;
    this.isDisposed = false;
  }

  IsDisposedDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this.isDisposed = true;
      this._s.isDisposed = true;
    }
  };

  var ConcatEnumerableObservable = (function(__super__) {
    inherits(ConcatEnumerableObservable, __super__);
    function ConcatEnumerableObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }

    function scheduleMethod(state, recurse) {
      if (state.isDisposed) { return; }
      var currentItem = tryCatch(state.e.next).call(state.e);
      if (currentItem === errorObj) { return state.o.onError(currentItem.e); }
      if (currentItem.done) { return state.o.onCompleted(); }

      // Check if promise
      var currentValue = currentItem.value;
      isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

      var d = new SingleAssignmentDisposable();
      state.subscription.setDisposable(d);
      d.setDisposable(currentValue.subscribe(new InnerObserver(state, recurse)));
    }

    ConcatEnumerableObservable.prototype.subscribeCore = function (o) {
      var subscription = new SerialDisposable();
      var state = {
        isDisposed: false,
        o: o,
        subscription: subscription,
        e: this.sources[$iterator$]()
      };

      var cancelable = currentThreadScheduler.scheduleRecursive(state, scheduleMethod);
      return new NAryDisposable([subscription, cancelable, new IsDisposedDisposable(state)]);
    };

    function InnerObserver(state, recurse) {
      this._state = state;
      this._recurse = recurse;
      AbstractObserver.call(this);
    }

    inherits(InnerObserver, AbstractObserver);

    InnerObserver.prototype.next = function (x) { this._state.o.onNext(x); };
    InnerObserver.prototype.error = function (e) { this._state.o.onError(e); };
    InnerObserver.prototype.completed = function () { this._recurse(this._state); };

    return ConcatEnumerableObservable;
  }(ObservableBase));

  Enumerable.prototype.concat = function () {
    return new ConcatEnumerableObservable(this);
  };

  var CatchErrorObservable = (function(__super__) {
    function CatchErrorObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }

    inherits(CatchErrorObservable, __super__);

    function scheduleMethod(state, recurse) {
      if (state.isDisposed) { return; }
      var currentItem = tryCatch(state.e.next).call(state.e);
      if (currentItem === errorObj) { return state.o.onError(currentItem.e); }
      if (currentItem.done) { return state.lastError !== null ? state.o.onError(state.lastError) : state.o.onCompleted(); }

      var currentValue = currentItem.value;
      isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

      var d = new SingleAssignmentDisposable();
      state.subscription.setDisposable(d);
      d.setDisposable(currentValue.subscribe(new InnerObserver(state, recurse)));
    }

    CatchErrorObservable.prototype.subscribeCore = function (o) {
      var subscription = new SerialDisposable();
      var state = {
        isDisposed: false,
        e: this.sources[$iterator$](),
        subscription: subscription,
        lastError: null,
        o: o
      };

      var cancelable = currentThreadScheduler.scheduleRecursive(state, scheduleMethod);
      return new NAryDisposable([subscription, cancelable, new IsDisposedDisposable(state)]);
    };

    function InnerObserver(state, recurse) {
      this._state = state;
      this._recurse = recurse;
      AbstractObserver.call(this);
    }

    inherits(InnerObserver, AbstractObserver);

    InnerObserver.prototype.next = function (x) { this._state.o.onNext(x); };
    InnerObserver.prototype.error = function (e) { this._state.lastError = e; this._recurse(this._state); };
    InnerObserver.prototype.completed = function () { this._state.o.onCompleted(); };

    return CatchErrorObservable;
  }(ObservableBase));

  Enumerable.prototype.catchError = function () {
    return new CatchErrorObservable(this);
  };

  var RepeatEnumerable = (function (__super__) {
    inherits(RepeatEnumerable, __super__);
    function RepeatEnumerable(v, c) {
      this.v = v;
      this.c = c == null ? -1 : c;
    }

    RepeatEnumerable.prototype[$iterator$] = function () {
      return new RepeatEnumerator(this);
    };

    function RepeatEnumerator(p) {
      this.v = p.v;
      this.l = p.c;
    }

    RepeatEnumerator.prototype.next = function () {
      if (this.l === 0) { return doneEnumerator; }
      if (this.l > 0) { this.l--; }
      return { done: false, value: this.v };
    };

    return RepeatEnumerable;
  }(Enumerable));

  var enumerableRepeat = Enumerable.repeat = function (value, repeatCount) {
    return new RepeatEnumerable(value, repeatCount);
  };

  var OfEnumerable = (function(__super__) {
    inherits(OfEnumerable, __super__);
    function OfEnumerable(s, fn, thisArg) {
      this.s = s;
      this.fn = fn ? bindCallback(fn, thisArg, 3) : null;
    }
    OfEnumerable.prototype[$iterator$] = function () {
      return new OfEnumerator(this);
    };

    function OfEnumerator(p) {
      this.i = -1;
      this.s = p.s;
      this.l = this.s.length;
      this.fn = p.fn;
    }

    OfEnumerator.prototype.next = function () {
     return ++this.i < this.l ?
       { done: false, value: !this.fn ? this.s[this.i] : this.fn(this.s[this.i], this.i, this.s) } :
       doneEnumerator;
    };

    return OfEnumerable;
  }(Enumerable));

  var enumerableOf = Enumerable.of = function (source, selector, thisArg) {
    return new OfEnumerable(source, selector, thisArg);
  };

var ObserveOnObservable = (function (__super__) {
  inherits(ObserveOnObservable, __super__);
  function ObserveOnObservable(source, s) {
    this.source = source;
    this._s = s;
    __super__.call(this);
  }

  ObserveOnObservable.prototype.subscribeCore = function (o) {
    return this.source.subscribe(new ObserveOnObserver(this._s, o));
  };

  return ObserveOnObservable;
}(ObservableBase));

   /**
   *  Wraps the source sequence in order to run its observer callbacks on the specified scheduler.
   *
   *  This only invokes observer callbacks on a scheduler. In case the subscription and/or unsubscription actions have side-effects
   *  that require to be run on a scheduler, use subscribeOn.
   *
   *  @param {Scheduler} scheduler Scheduler to notify observers on.
   *  @returns {Observable} The source sequence whose observations happen on the specified scheduler.
   */
  observableProto.observeOn = function (scheduler) {
    return new ObserveOnObservable(this, scheduler);
  };

  var SubscribeOnObservable = (function (__super__) {
    inherits(SubscribeOnObservable, __super__);
    function SubscribeOnObservable(source, s) {
      this.source = source;
      this._s = s;
      __super__.call(this);
    }

    function scheduleMethod(scheduler, state) {
      var source = state[0], d = state[1], o = state[2];
      d.setDisposable(new ScheduledDisposable(scheduler, source.subscribe(o)));
    }

    SubscribeOnObservable.prototype.subscribeCore = function (o) {
      var m = new SingleAssignmentDisposable(), d = new SerialDisposable();
      d.setDisposable(m);
      m.setDisposable(this._s.schedule([this.source, d, o], scheduleMethod));
      return d;
    };

    return SubscribeOnObservable;
  }(ObservableBase));

   /**
   *  Wraps the source sequence in order to run its subscription and unsubscription logic on the specified scheduler. This operation is not commonly used;
   *  see the remarks section for more information on the distinction between subscribeOn and observeOn.

   *  This only performs the side-effects of subscription and unsubscription on the specified scheduler. In order to invoke observer
   *  callbacks on a scheduler, use observeOn.

   *  @param {Scheduler} scheduler Scheduler to perform subscription and unsubscription actions on.
   *  @returns {Observable} The source sequence whose subscriptions and unsubscriptions happen on the specified scheduler.
   */
  observableProto.subscribeOn = function (scheduler) {
    return new SubscribeOnObservable(this, scheduler);
  };

  var FromPromiseObservable = (function(__super__) {
    inherits(FromPromiseObservable, __super__);
    function FromPromiseObservable(p, s) {
      this._p = p;
      this._s = s;
      __super__.call(this);
    }

    function scheduleNext(s, state) {
      var o = state[0], data = state[1];
      o.onNext(data);
      o.onCompleted();
    }

    function scheduleError(s, state) {
      var o = state[0], err = state[1];
      o.onError(err);
    }

    FromPromiseObservable.prototype.subscribeCore = function(o) {
      var sad = new SingleAssignmentDisposable(), self = this, p = this._p;

      if (isFunction(p)) {
        p = tryCatch(p)();
        if (p === errorObj) {
          o.onError(p.e);
          return sad;
        }
      }

      p
        .then(function (data) {
          sad.setDisposable(self._s.schedule([o, data], scheduleNext));
        }, function (err) {
          sad.setDisposable(self._s.schedule([o, err], scheduleError));
        });

      return sad;
    };

    return FromPromiseObservable;
  }(ObservableBase));

  /**
  * Converts a Promise to an Observable sequence
  * @param {Promise} An ES6 Compliant promise.
  * @returns {Observable} An Observable sequence which wraps the existing promise success and failure.
  */
  var observableFromPromise = Observable.fromPromise = function (promise, scheduler) {
    scheduler || (scheduler = defaultScheduler);
    return new FromPromiseObservable(promise, scheduler);
  };

  /*
   * Converts an existing observable sequence to an ES6 Compatible Promise
   * @example
   * var promise = Rx.Observable.return(42).toPromise(RSVP.Promise);
   *
   * // With config
   * Rx.config.Promise = RSVP.Promise;
   * var promise = Rx.Observable.return(42).toPromise();
   * @param {Function} [promiseCtor] The constructor of the promise. If not provided, it looks for it in Rx.config.Promise.
   * @returns {Promise} An ES6 compatible promise with the last value from the observable sequence.
   */
  observableProto.toPromise = function (promiseCtor) {
    promiseCtor || (promiseCtor = Rx.config.Promise);
    if (!promiseCtor) { throw new NotSupportedError('Promise type not provided nor in Rx.config.Promise'); }
    var source = this;
    return new promiseCtor(function (resolve, reject) {
      // No cancellation can be done
      var value;
      source.subscribe(function (v) {
        value = v;
      }, reject, function () {
        resolve(value);
      });
    });
  };

  var ToArrayObservable = (function(__super__) {
    inherits(ToArrayObservable, __super__);
    function ToArrayObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    ToArrayObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o));
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(o) {
      this.o = o;
      this.a = [];
      AbstractObserver.call(this);
    }
    
    InnerObserver.prototype.next = function (x) { this.a.push(x); };
    InnerObserver.prototype.error = function (e) { this.o.onError(e);  };
    InnerObserver.prototype.completed = function () { this.o.onNext(this.a); this.o.onCompleted(); };

    return ToArrayObservable;
  }(ObservableBase));

  /**
  * Creates an array from an observable sequence.
  * @returns {Observable} An observable sequence containing a single element with a list containing all the elements of the source sequence.
  */
  observableProto.toArray = function () {
    return new ToArrayObservable(this);
  };

  /**
   *  Creates an observable sequence from a specified subscribe method implementation.
   * @example
   *  var res = Rx.Observable.create(function (observer) { return function () { } );
   *  var res = Rx.Observable.create(function (observer) { return Rx.Disposable.empty; } );
   *  var res = Rx.Observable.create(function (observer) { } );
   * @param {Function} subscribe Implementation of the resulting observable sequence's subscribe method, returning a function that will be wrapped in a Disposable.
   * @returns {Observable} The observable sequence with the specified implementation for the Subscribe method.
   */
  Observable.create = function (subscribe, parent) {
    return new AnonymousObservable(subscribe, parent);
  };

  var Defer = (function(__super__) {
    inherits(Defer, __super__);
    function Defer(factory) {
      this._f = factory;
      __super__.call(this);
    }

    Defer.prototype.subscribeCore = function (o) {
      var result = tryCatch(this._f)();
      if (result === errorObj) { return observableThrow(result.e).subscribe(o);}
      isPromise(result) && (result = observableFromPromise(result));
      return result.subscribe(o);
    };

    return Defer;
  }(ObservableBase));

  /**
   *  Returns an observable sequence that invokes the specified factory function whenever a new observer subscribes.
   *
   * @example
   *  var res = Rx.Observable.defer(function () { return Rx.Observable.fromArray([1,2,3]); });
   * @param {Function} observableFactory Observable factory function to invoke for each observer that subscribes to the resulting sequence or Promise.
   * @returns {Observable} An observable sequence whose observers trigger an invocation of the given observable factory function.
   */
  var observableDefer = Observable.defer = function (observableFactory) {
    return new Defer(observableFactory);
  };

  var EmptyObservable = (function(__super__) {
    inherits(EmptyObservable, __super__);
    function EmptyObservable(scheduler) {
      this.scheduler = scheduler;
      __super__.call(this);
    }

    EmptyObservable.prototype.subscribeCore = function (observer) {
      var sink = new EmptySink(observer, this.scheduler);
      return sink.run();
    };

    function EmptySink(observer, scheduler) {
      this.observer = observer;
      this.scheduler = scheduler;
    }

    function scheduleItem(s, state) {
      state.onCompleted();
      return disposableEmpty;
    }

    EmptySink.prototype.run = function () {
      var state = this.observer;
      return this.scheduler === immediateScheduler ?
        scheduleItem(null, state) :
        this.scheduler.schedule(state, scheduleItem);
    };

    return EmptyObservable;
  }(ObservableBase));

  var EMPTY_OBSERVABLE = new EmptyObservable(immediateScheduler);

  /**
   *  Returns an empty observable sequence, using the specified scheduler to send out the single OnCompleted message.
   *
   * @example
   *  var res = Rx.Observable.empty();
   *  var res = Rx.Observable.empty(Rx.Scheduler.timeout);
   * @param {Scheduler} [scheduler] Scheduler to send the termination call on.
   * @returns {Observable} An observable sequence with no elements.
   */
  var observableEmpty = Observable.empty = function (scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return scheduler === immediateScheduler ? EMPTY_OBSERVABLE : new EmptyObservable(scheduler);
  };

  var FromObservable = (function(__super__) {
    inherits(FromObservable, __super__);
    function FromObservable(iterable, fn, scheduler) {
      this._iterable = iterable;
      this._fn = fn;
      this._scheduler = scheduler;
      __super__.call(this);
    }

    function createScheduleMethod(o, it, fn) {
      return function loopRecursive(i, recurse) {
        var next = tryCatch(it.next).call(it);
        if (next === errorObj) { return o.onError(next.e); }
        if (next.done) { return o.onCompleted(); }

        var result = next.value;

        if (isFunction(fn)) {
          result = tryCatch(fn)(result, i);
          if (result === errorObj) { return o.onError(result.e); }
        }

        o.onNext(result);
        recurse(i + 1);
      };
    }

    FromObservable.prototype.subscribeCore = function (o) {
      var list = Object(this._iterable),
          it = getIterable(list);

      return this._scheduler.scheduleRecursive(0, createScheduleMethod(o, it, this._fn));
    };

    return FromObservable;
  }(ObservableBase));

  var maxSafeInteger = Math.pow(2, 53) - 1;

  function StringIterable(s) {
    this._s = s;
  }

  StringIterable.prototype[$iterator$] = function () {
    return new StringIterator(this._s);
  };

  function StringIterator(s) {
    this._s = s;
    this._l = s.length;
    this._i = 0;
  }

  StringIterator.prototype[$iterator$] = function () {
    return this;
  };

  StringIterator.prototype.next = function () {
    return this._i < this._l ? { done: false, value: this._s.charAt(this._i++) } : doneEnumerator;
  };

  function ArrayIterable(a) {
    this._a = a;
  }

  ArrayIterable.prototype[$iterator$] = function () {
    return new ArrayIterator(this._a);
  };

  function ArrayIterator(a) {
    this._a = a;
    this._l = toLength(a);
    this._i = 0;
  }

  ArrayIterator.prototype[$iterator$] = function () {
    return this;
  };

  ArrayIterator.prototype.next = function () {
    return this._i < this._l ? { done: false, value: this._a[this._i++] } : doneEnumerator;
  };

  function numberIsFinite(value) {
    return typeof value === 'number' && root.isFinite(value);
  }

  function isNan(n) {
    return n !== n;
  }

  function getIterable(o) {
    var i = o[$iterator$], it;
    if (!i && typeof o === 'string') {
      it = new StringIterable(o);
      return it[$iterator$]();
    }
    if (!i && o.length !== undefined) {
      it = new ArrayIterable(o);
      return it[$iterator$]();
    }
    if (!i) { throw new TypeError('Object is not iterable'); }
    return o[$iterator$]();
  }

  function sign(value) {
    var number = +value;
    if (number === 0) { return number; }
    if (isNaN(number)) { return number; }
    return number < 0 ? -1 : 1;
  }

  function toLength(o) {
    var len = +o.length;
    if (isNaN(len)) { return 0; }
    if (len === 0 || !numberIsFinite(len)) { return len; }
    len = sign(len) * Math.floor(Math.abs(len));
    if (len <= 0) { return 0; }
    if (len > maxSafeInteger) { return maxSafeInteger; }
    return len;
  }

  /**
  * This method creates a new Observable sequence from an array-like or iterable object.
  * @param {Any} arrayLike An array-like or iterable object to convert to an Observable sequence.
  * @param {Function} [mapFn] Map function to call on every element of the array.
  * @param {Any} [thisArg] The context to use calling the mapFn if provided.
  * @param {Scheduler} [scheduler] Optional scheduler to use for scheduling.  If not provided, defaults to Scheduler.currentThread.
  */
  var observableFrom = Observable.from = function (iterable, mapFn, thisArg, scheduler) {
    if (iterable == null) {
      throw new Error('iterable cannot be null.')
    }
    if (mapFn && !isFunction(mapFn)) {
      throw new Error('mapFn when provided must be a function');
    }
    if (mapFn) {
      var mapper = bindCallback(mapFn, thisArg, 2);
    }
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromObservable(iterable, mapper, scheduler);
  }

  var FromArrayObservable = (function(__super__) {
    inherits(FromArrayObservable, __super__);
    function FromArrayObservable(args, scheduler) {
      this._args = args;
      this._scheduler = scheduler;
      __super__.call(this);
    }

    function scheduleMethod(o, args) {
      var len = args.length;
      return function loopRecursive (i, recurse) {
        if (i < len) {
          o.onNext(args[i]);
          recurse(i + 1);
        } else {
          o.onCompleted();
        }
      };
    }

    FromArrayObservable.prototype.subscribeCore = function (o) {
      return this._scheduler.scheduleRecursive(0, scheduleMethod(o, this._args));
    };

    return FromArrayObservable;
  }(ObservableBase));

  /**
  *  Converts an array to an observable sequence, using an optional scheduler to enumerate the array.
  * @deprecated use Observable.from or Observable.of
  * @param {Scheduler} [scheduler] Scheduler to run the enumeration of the input sequence on.
  * @returns {Observable} The observable sequence whose elements are pulled from the given enumerable sequence.
  */
  var observableFromArray = Observable.fromArray = function (array, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromArrayObservable(array, scheduler)
  };

  var GenerateObservable = (function (__super__) {
    inherits(GenerateObservable, __super__);
    function GenerateObservable(state, cndFn, itrFn, resFn, s) {
      this._initialState = state;
      this._cndFn = cndFn;
      this._itrFn = itrFn;
      this._resFn = resFn;
      this._s = s;
      __super__.call(this);
    }

    function scheduleRecursive(state, recurse) {
      if (state.first) {
        state.first = false;
      } else {
        state.newState = tryCatch(state.self._itrFn)(state.newState);
        if (state.newState === errorObj) { return state.o.onError(state.newState.e); }
      }
      var hasResult = tryCatch(state.self._cndFn)(state.newState);
      if (hasResult === errorObj) { return state.o.onError(hasResult.e); }
      if (hasResult) {
        var result = tryCatch(state.self._resFn)(state.newState);
        if (result === errorObj) { return state.o.onError(result.e); }
        state.o.onNext(result);
        recurse(state);
      } else {
        state.o.onCompleted();
      }
    }

    GenerateObservable.prototype.subscribeCore = function (o) {
      var state = {
        o: o,
        self: this,
        first: true,
        newState: this._initialState
      };
      return this._s.scheduleRecursive(state, scheduleRecursive);
    };

    return GenerateObservable;
  }(ObservableBase));

  /**
   *  Generates an observable sequence by running a state-driven loop producing the sequence's elements, using the specified scheduler to send out observer messages.
   *
   * @example
   *  var res = Rx.Observable.generate(0, function (x) { return x < 10; }, function (x) { return x + 1; }, function (x) { return x; });
   *  var res = Rx.Observable.generate(0, function (x) { return x < 10; }, function (x) { return x + 1; }, function (x) { return x; }, Rx.Scheduler.timeout);
   * @param {Mixed} initialState Initial state.
   * @param {Function} condition Condition to terminate generation (upon returning false).
   * @param {Function} iterate Iteration step function.
   * @param {Function} resultSelector Selector function for results produced in the sequence.
   * @param {Scheduler} [scheduler] Scheduler on which to run the generator loop. If not provided, defaults to Scheduler.currentThread.
   * @returns {Observable} The generated sequence.
   */
  Observable.generate = function (initialState, condition, iterate, resultSelector, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new GenerateObservable(initialState, condition, iterate, resultSelector, scheduler);
  };

  function observableOf (scheduler, array) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new FromArrayObservable(array, scheduler);
  }

  /**
  *  This method creates a new Observable instance with a variable number of arguments, regardless of number or type of the arguments.
  * @returns {Observable} The observable sequence whose elements are pulled from the given arguments.
  */
  Observable.of = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return new FromArrayObservable(args, currentThreadScheduler);
  };

  /**
  *  This method creates a new Observable instance with a variable number of arguments, regardless of number or type of the arguments.
  * @param {Scheduler} scheduler A scheduler to use for scheduling the arguments.
  * @returns {Observable} The observable sequence whose elements are pulled from the given arguments.
  */
  Observable.ofWithScheduler = function (scheduler) {
    var len = arguments.length, args = new Array(len - 1);
    for(var i = 1; i < len; i++) { args[i - 1] = arguments[i]; }
    return new FromArrayObservable(args, scheduler);
  };

  /**
   * Creates an Observable sequence from changes to an array using Array.observe.
   * @param {Array} array An array to observe changes.
   * @returns {Observable} An observable sequence containing changes to an array from Array.observe.
   */
  Observable.ofArrayChanges = function(array) {
    if (!Array.isArray(array)) { throw new TypeError('Array.observe only accepts arrays.'); }
    if (typeof Array.observe !== 'function' && typeof Array.unobserve !== 'function') { throw new TypeError('Array.observe is not supported on your platform') }
    return new AnonymousObservable(function(observer) {
      function observerFn(changes) {
        for(var i = 0, len = changes.length; i < len; i++) {
          observer.onNext(changes[i]);
        }
      }
      
      Array.observe(array, observerFn);

      return function () {
        Array.unobserve(array, observerFn);
      };
    });
  };

  /**
   * Creates an Observable sequence from changes to an object using Object.observe.
   * @param {Object} obj An object to observe changes.
   * @returns {Observable} An observable sequence containing changes to an object from Object.observe.
   */
  Observable.ofObjectChanges = function(obj) {
    if (obj == null) { throw new TypeError('object must not be null or undefined.'); }
    if (typeof Object.observe !== 'function' && typeof Object.unobserve !== 'function') { throw new TypeError('Object.observe is not supported on your platform') }
    return new AnonymousObservable(function(observer) {
      function observerFn(changes) {
        for(var i = 0, len = changes.length; i < len; i++) {
          observer.onNext(changes[i]);
        }
      }

      Object.observe(obj, observerFn);

      return function () {
        Object.unobserve(obj, observerFn);
      };
    });
  };

  var NeverObservable = (function(__super__) {
    inherits(NeverObservable, __super__);
    function NeverObservable() {
      __super__.call(this);
    }

    NeverObservable.prototype.subscribeCore = function (observer) {
      return disposableEmpty;
    };

    return NeverObservable;
  }(ObservableBase));

  var NEVER_OBSERVABLE = new NeverObservable();

  /**
   * Returns a non-terminating observable sequence, which can be used to denote an infinite duration (e.g. when using reactive joins).
   * @returns {Observable} An observable sequence whose observers will never get called.
   */
  var observableNever = Observable.never = function () {
    return NEVER_OBSERVABLE;
  };

  var PairsObservable = (function(__super__) {
    inherits(PairsObservable, __super__);
    function PairsObservable(o, scheduler) {
      this._o = o;
      this._keys = Object.keys(o);
      this._scheduler = scheduler;
      __super__.call(this);
    }

    function scheduleMethod(o, obj, keys) {
      return function loopRecursive(i, recurse) {
        if (i < keys.length) {
          var key = keys[i];
          o.onNext([key, obj[key]]);
          recurse(i + 1);
        } else {
          o.onCompleted();
        }
      };
    }

    PairsObservable.prototype.subscribeCore = function (o) {
      return this._scheduler.scheduleRecursive(0, scheduleMethod(o, this._o, this._keys));
    };

    return PairsObservable;
  }(ObservableBase));

  /**
   * Convert an object into an observable sequence of [key, value] pairs.
   * @param {Object} obj The object to inspect.
   * @param {Scheduler} [scheduler] Scheduler to run the enumeration of the input sequence on.
   * @returns {Observable} An observable sequence of [key, value] pairs from the object.
   */
  Observable.pairs = function (obj, scheduler) {
    scheduler || (scheduler = currentThreadScheduler);
    return new PairsObservable(obj, scheduler);
  };

    var RangeObservable = (function(__super__) {
    inherits(RangeObservable, __super__);
    function RangeObservable(start, count, scheduler) {
      this.start = start;
      this.rangeCount = count;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    function loopRecursive(start, count, o) {
      return function loop (i, recurse) {
        if (i < count) {
          o.onNext(start + i);
          recurse(i + 1);
        } else {
          o.onCompleted();
        }
      };
    }

    RangeObservable.prototype.subscribeCore = function (o) {
      return this.scheduler.scheduleRecursive(
        0,
        loopRecursive(this.start, this.rangeCount, o)
      );
    };

    return RangeObservable;
  }(ObservableBase));

  /**
  *  Generates an observable sequence of integral numbers within a specified range, using the specified scheduler to send out observer messages.
  * @param {Number} start The value of the first integer in the sequence.
  * @param {Number} count The number of sequential integers to generate.
  * @param {Scheduler} [scheduler] Scheduler to run the generator loop on. If not specified, defaults to Scheduler.currentThread.
  * @returns {Observable} An observable sequence that contains a range of sequential integral numbers.
  */
  Observable.range = function (start, count, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new RangeObservable(start, count, scheduler);
  };

  var RepeatObservable = (function(__super__) {
    inherits(RepeatObservable, __super__);
    function RepeatObservable(value, repeatCount, scheduler) {
      this.value = value;
      this.repeatCount = repeatCount == null ? -1 : repeatCount;
      this.scheduler = scheduler;
      __super__.call(this);
    }

    RepeatObservable.prototype.subscribeCore = function (observer) {
      var sink = new RepeatSink(observer, this);
      return sink.run();
    };

    return RepeatObservable;
  }(ObservableBase));

  function RepeatSink(observer, parent) {
    this.observer = observer;
    this.parent = parent;
  }

  RepeatSink.prototype.run = function () {
    var observer = this.observer, value = this.parent.value;
    function loopRecursive(i, recurse) {
      if (i === -1 || i > 0) {
        observer.onNext(value);
        i > 0 && i--;
      }
      if (i === 0) { return observer.onCompleted(); }
      recurse(i);
    }

    return this.parent.scheduler.scheduleRecursive(this.parent.repeatCount, loopRecursive);
  };

  /**
   *  Generates an observable sequence that repeats the given element the specified number of times, using the specified scheduler to send out observer messages.
   * @param {Mixed} value Element to repeat.
   * @param {Number} repeatCount [Optiona] Number of times to repeat the element. If not specified, repeats indefinitely.
   * @param {Scheduler} scheduler Scheduler to run the producer loop on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} An observable sequence that repeats the given element the specified number of times.
   */
  Observable.repeat = function (value, repeatCount, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new RepeatObservable(value, repeatCount, scheduler);
  };

  var JustObservable = (function(__super__) {
    inherits(JustObservable, __super__);
    function JustObservable(value, scheduler) {
      this._value = value;
      this._scheduler = scheduler;
      __super__.call(this);
    }

    JustObservable.prototype.subscribeCore = function (o) {
      var state = [this._value, o];
      return this._scheduler === immediateScheduler ?
        scheduleItem(null, state) :
        this._scheduler.schedule(state, scheduleItem);
    };

    function scheduleItem(s, state) {
      var value = state[0], observer = state[1];
      observer.onNext(value);
      observer.onCompleted();
      return disposableEmpty;
    }

    return JustObservable;
  }(ObservableBase));

  /**
   *  Returns an observable sequence that contains a single element, using the specified scheduler to send out observer messages.
   *  There is an alias called 'just' or browsers <IE9.
   * @param {Mixed} value Single element in the resulting observable sequence.
   * @param {Scheduler} scheduler Scheduler to send the single element on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} An observable sequence containing the single specified element.
   */
  var observableReturn = Observable['return'] = Observable.just = function (value, scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return new JustObservable(value, scheduler);
  };

  var ThrowObservable = (function(__super__) {
    inherits(ThrowObservable, __super__);
    function ThrowObservable(error, scheduler) {
      this._error = error;
      this._scheduler = scheduler;
      __super__.call(this);
    }

    ThrowObservable.prototype.subscribeCore = function (o) {
      var state = [this._error, o];
      return this._scheduler === immediateScheduler ?
        scheduleItem(null, state) :
        this._scheduler.schedule(state, scheduleItem);
    };

    function scheduleItem(s, state) {
      var e = state[0], o = state[1];
      o.onError(e);
      return disposableEmpty;
    }

    return ThrowObservable;
  }(ObservableBase));

  /**
   *  Returns an observable sequence that terminates with an exception, using the specified scheduler to send out the single onError message.
   *  There is an alias to this method called 'throwError' for browsers <IE9.
   * @param {Mixed} error An object used for the sequence's termination.
   * @param {Scheduler} scheduler Scheduler to send the exceptional termination call on. If not specified, defaults to Scheduler.immediate.
   * @returns {Observable} The observable sequence that terminates exceptionally with the specified exception object.
   */
  var observableThrow = Observable['throw'] = function (error, scheduler) {
    isScheduler(scheduler) || (scheduler = immediateScheduler);
    return new ThrowObservable(error, scheduler);
  };

  var UsingObservable = (function (__super__) {
    inherits(UsingObservable, __super__);
    function UsingObservable(resFn, obsFn) {
      this._resFn = resFn;
      this._obsFn = obsFn;
      __super__.call(this);
    }

    UsingObservable.prototype.subscribeCore = function (o) {
      var disposable = disposableEmpty;
      var resource = tryCatch(this._resFn)();
      if (resource === errorObj) {
        return new BinaryDisposable(observableThrow(resource.e).subscribe(o), disposable);
      }
      resource && (disposable = resource);
      var source = tryCatch(this._obsFn)(resource);
      if (source === errorObj) {
        return new BinaryDisposable(observableThrow(source.e).subscribe(o), disposable);
      }
      return new BinaryDisposable(source.subscribe(o), disposable);
    };

    return UsingObservable;
  }(ObservableBase));

  /**
   * Constructs an observable sequence that depends on a resource object, whose lifetime is tied to the resulting observable sequence's lifetime.
   * @param {Function} resourceFactory Factory function to obtain a resource object.
   * @param {Function} observableFactory Factory function to obtain an observable sequence that depends on the obtained resource.
   * @returns {Observable} An observable sequence whose lifetime controls the lifetime of the dependent resource object.
   */
  Observable.using = function (resourceFactory, observableFactory) {
    return new UsingObservable(resourceFactory, observableFactory);
  };

  /**
   * Propagates the observable sequence or Promise that reacts first.
   * @param {Observable} rightSource Second observable sequence or Promise.
   * @returns {Observable} {Observable} An observable sequence that surfaces either of the given sequences, whichever reacted first.
   */
  observableProto.amb = function (rightSource) {
    var leftSource = this;
    return new AnonymousObservable(function (observer) {
      var choice,
        leftChoice = 'L', rightChoice = 'R',
        leftSubscription = new SingleAssignmentDisposable(),
        rightSubscription = new SingleAssignmentDisposable();

      isPromise(rightSource) && (rightSource = observableFromPromise(rightSource));

      function choiceL() {
        if (!choice) {
          choice = leftChoice;
          rightSubscription.dispose();
        }
      }

      function choiceR() {
        if (!choice) {
          choice = rightChoice;
          leftSubscription.dispose();
        }
      }

      var leftSubscribe = observerCreate(
        function (left) {
          choiceL();
          choice === leftChoice && observer.onNext(left);
        },
        function (e) {
          choiceL();
          choice === leftChoice && observer.onError(e);
        },
        function () {
          choiceL();
          choice === leftChoice && observer.onCompleted();
        }
      );
      var rightSubscribe = observerCreate(
        function (right) {
          choiceR();
          choice === rightChoice && observer.onNext(right);
        },
        function (e) {
          choiceR();
          choice === rightChoice && observer.onError(e);
        },
        function () {
          choiceR();
          choice === rightChoice && observer.onCompleted();
        }
      );

      leftSubscription.setDisposable(leftSource.subscribe(leftSubscribe));
      rightSubscription.setDisposable(rightSource.subscribe(rightSubscribe));

      return new BinaryDisposable(leftSubscription, rightSubscription);
    });
  };

  function amb(p, c) { return p.amb(c); }

  /**
   * Propagates the observable sequence or Promise that reacts first.
   * @returns {Observable} An observable sequence that surfaces any of the given sequences, whichever reacted first.
   */
  Observable.amb = function () {
    var acc = observableNever(), items;
    if (Array.isArray(arguments[0])) {
      items = arguments[0];
    } else {
      var len = arguments.length;
      items = new Array(items);
      for(var i = 0; i < len; i++) { items[i] = arguments[i]; }
    }
    for (var i = 0, len = items.length; i < len; i++) {
      acc = amb(acc, items[i]);
    }
    return acc;
  };

  var CatchObservable = (function (__super__) {
    inherits(CatchObservable, __super__);
    function CatchObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    CatchObservable.prototype.subscribeCore = function (o) {
      var d1 = new SingleAssignmentDisposable(), subscription = new SerialDisposable();
      subscription.setDisposable(d1);
      d1.setDisposable(this.source.subscribe(new CatchObserver(o, subscription, this._fn)));
      return subscription;
    };

    return CatchObservable;
  }(ObservableBase));

  var CatchObserver = (function(__super__) {
    inherits(CatchObserver, __super__);
    function CatchObserver(o, s, fn) {
      this._o = o;
      this._s = s;
      this._fn = fn;
      __super__.call(this);
    }

    CatchObserver.prototype.next = function (x) { this._o.onNext(x); };
    CatchObserver.prototype.completed = function () { return this._o.onCompleted(); };
    CatchObserver.prototype.error = function (e) {
      var result = tryCatch(this._fn)(e);
      if (result === errorObj) { return this._o.onError(result.e); }
      isPromise(result) && (result = observableFromPromise(result));

      var d = new SingleAssignmentDisposable();
      this._s.setDisposable(d);
      d.setDisposable(result.subscribe(this._o));
    };

    return CatchObserver;
  }(AbstractObserver));

  /**
   * Continues an observable sequence that is terminated by an exception with the next observable sequence.
   * @param {Mixed} handlerOrSecond Exception handler function that returns an observable sequence given the error that occurred in the first sequence, or a second observable sequence used to produce results when an error occurred in the first sequence.
   * @returns {Observable} An observable sequence containing the first sequence's elements, followed by the elements of the handler sequence in case an exception occurred.
   */
  observableProto['catch'] = function (handlerOrSecond) {
    return isFunction(handlerOrSecond) ? new CatchObservable(this, handlerOrSecond) : observableCatch([this, handlerOrSecond]);
  };

  /**
   * Continues an observable sequence that is terminated by an exception with the next observable sequence.
   * @param {Array | Arguments} args Arguments or an array to use as the next sequence if an error occurs.
   * @returns {Observable} An observable sequence containing elements from consecutive source sequences until a source sequence terminates successfully.
   */
  var observableCatch = Observable['catch'] = function () {
    var items;
    if (Array.isArray(arguments[0])) {
      items = arguments[0];
    } else {
      var len = arguments.length;
      items = new Array(len);
      for(var i = 0; i < len; i++) { items[i] = arguments[i]; }
    }
    return enumerableOf(items).catchError();
  };

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever any of the observable sequences or Promises produces an element.
   * This can be in the form of an argument list of observables or an array.
   *
   * @example
   * 1 - obs = observable.combineLatest(obs1, obs2, obs3, function (o1, o2, o3) { return o1 + o2 + o3; });
   * 2 - obs = observable.combineLatest([obs1, obs2, obs3], function (o1, o2, o3) { return o1 + o2 + o3; });
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  observableProto.combineLatest = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    if (Array.isArray(args[0])) {
      args[0].unshift(this);
    } else {
      args.unshift(this);
    }
    return combineLatest.apply(this, args);
  };

  function falseFactory() { return false; }
  function argumentsToArray() {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return args;
  }

  var CombineLatestObservable = (function(__super__) {
    inherits(CombineLatestObservable, __super__);
    function CombineLatestObservable(params, cb) {
      this._params = params;
      this._cb = cb;
      __super__.call(this);
    }

    CombineLatestObservable.prototype.subscribeCore = function(observer) {
      var len = this._params.length,
          subscriptions = new Array(len);

      var state = {
        hasValue: arrayInitialize(len, falseFactory),
        hasValueAll: false,
        isDone: arrayInitialize(len, falseFactory),
        values: new Array(len)
      };

      for (var i = 0; i < len; i++) {
        var source = this._params[i], sad = new SingleAssignmentDisposable();
        subscriptions[i] = sad;
        isPromise(source) && (source = observableFromPromise(source));
        sad.setDisposable(source.subscribe(new CombineLatestObserver(observer, i, this._cb, state)));
      }

      return new NAryDisposable(subscriptions);
    };

    return CombineLatestObservable;
  }(ObservableBase));

  var CombineLatestObserver = (function (__super__) {
    inherits(CombineLatestObserver, __super__);
    function CombineLatestObserver(o, i, cb, state) {
      this._o = o;
      this._i = i;
      this._cb = cb;
      this._state = state;
      __super__.call(this);
    }

    function notTheSame(i) {
      return function (x, j) {
        return j !== i;
      };
    }

    CombineLatestObserver.prototype.next = function (x) {
      this._state.values[this._i] = x;
      this._state.hasValue[this._i] = true;
      if (this._state.hasValueAll || (this._state.hasValueAll = this._state.hasValue.every(identity))) {
        var res = tryCatch(this._cb).apply(null, this._state.values);
        if (res === errorObj) { return this._o.onError(res.e); }
        this._o.onNext(res);
      } else if (this._state.isDone.filter(notTheSame(this._i)).every(identity)) {
        this._o.onCompleted();
      }
    };

    CombineLatestObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    CombineLatestObserver.prototype.completed = function () {
      this._state.isDone[this._i] = true;
      this._state.isDone.every(identity) && this._o.onCompleted();
    };

    return CombineLatestObserver;
  }(AbstractObserver));

  /**
  * Merges the specified observable sequences into one observable sequence by using the selector function whenever any of the observable sequences or Promises produces an element.
  *
  * @example
  * 1 - obs = Rx.Observable.combineLatest(obs1, obs2, obs3, function (o1, o2, o3) { return o1 + o2 + o3; });
  * 2 - obs = Rx.Observable.combineLatest([obs1, obs2, obs3], function (o1, o2, o3) { return o1 + o2 + o3; });
  * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
  */
  var combineLatest = Observable.combineLatest = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);
    return new CombineLatestObservable(args, resultSelector);
  };

  /**
   * Concatenates all the observable sequences.  This takes in either an array or variable arguments to concatenate.
   * @returns {Observable} An observable sequence that contains the elements of each given sequence, in sequential order.
   */
  observableProto.concat = function () {
    for(var args = [], i = 0, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
    args.unshift(this);
    return observableConcat.apply(null, args);
  };

  var ConcatObserver = (function(__super__) {
    inherits(ConcatObserver, __super__);
    function ConcatObserver(s, fn) {
      this._s = s;
      this._fn = fn;
      __super__.call(this);
    }

    ConcatObserver.prototype.next = function (x) { this._s.o.onNext(x); };
    ConcatObserver.prototype.error = function (e) { this._s.o.onError(e); };
    ConcatObserver.prototype.completed = function () { this._s.i++; this._fn(this._s); };

    return ConcatObserver;
  }(AbstractObserver));

  var ConcatObservable = (function(__super__) {
    inherits(ConcatObservable, __super__);
    function ConcatObservable(sources) {
      this._sources = sources;
      __super__.call(this);
    }

    function scheduleRecursive (state, recurse) {
      if (state.disposable.isDisposed) { return; }
      if (state.i === state.sources.length) { return state.o.onCompleted(); }

      // Check if promise
      var currentValue = state.sources[state.i];
      isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

      var d = new SingleAssignmentDisposable();
      state.subscription.setDisposable(d);
      d.setDisposable(currentValue.subscribe(new ConcatObserver(state, recurse)));
    }

    ConcatObservable.prototype.subscribeCore = function(o) {
      var subscription = new SerialDisposable();
      var disposable = disposableCreate(noop);
      var state = {
        o: o,
        i: 0,
        subscription: subscription,
        disposable: disposable,
        sources: this._sources
      };

      var cancelable = immediateScheduler.scheduleRecursive(state, scheduleRecursive);
      return new NAryDisposable([subscription, disposable, cancelable]);
    };

    return ConcatObservable;
  }(ObservableBase));

  /**
   * Concatenates all the observable sequences.
   * @param {Array | Arguments} args Arguments or an array to concat to the observable sequence.
   * @returns {Observable} An observable sequence that contains the elements of each given sequence, in sequential order.
   */
  var observableConcat = Observable.concat = function () {
    var args;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
    } else {
      args = new Array(arguments.length);
      for(var i = 0, len = arguments.length; i < len; i++) { args[i] = arguments[i]; }
    }
    return new ConcatObservable(args);
  };

  /**
   * Concatenates an observable sequence of observable sequences.
   * @returns {Observable} An observable sequence that contains the elements of each observed inner sequence, in sequential order.
   */
  observableProto.concatAll = function () {
    return this.merge(1);
  };

  var MergeObservable = (function (__super__) {
    inherits(MergeObservable, __super__);

    function MergeObservable(source, maxConcurrent) {
      this.source = source;
      this.maxConcurrent = maxConcurrent;
      __super__.call(this);
    }

    MergeObservable.prototype.subscribeCore = function(observer) {
      var g = new CompositeDisposable();
      g.add(this.source.subscribe(new MergeObserver(observer, this.maxConcurrent, g)));
      return g;
    };

    return MergeObservable;

  }(ObservableBase));

  var MergeObserver = (function (__super__) {
    function MergeObserver(o, max, g) {
      this.o = o;
      this.max = max;
      this.g = g;
      this.done = false;
      this.q = [];
      this.activeCount = 0;
      __super__.call(this);
    }

    inherits(MergeObserver, __super__);

    MergeObserver.prototype.handleSubscribe = function (xs) {
      var sad = new SingleAssignmentDisposable();
      this.g.add(sad);
      isPromise(xs) && (xs = observableFromPromise(xs));
      sad.setDisposable(xs.subscribe(new InnerObserver(this, sad)));
    };

    MergeObserver.prototype.next = function (innerSource) {
      if(this.activeCount < this.max) {
        this.activeCount++;
        this.handleSubscribe(innerSource);
      } else {
        this.q.push(innerSource);
      }
    };
    MergeObserver.prototype.error = function (e) { this.o.onError(e); };
    MergeObserver.prototype.completed = function () { this.done = true; this.activeCount === 0 && this.o.onCompleted(); };

    function InnerObserver(parent, sad) {
      this.parent = parent;
      this.sad = sad;
      __super__.call(this);
    }

    inherits(InnerObserver, __super__);

    InnerObserver.prototype.next = function (x) { this.parent.o.onNext(x); };
    InnerObserver.prototype.error = function (e) { this.parent.o.onError(e); };
    InnerObserver.prototype.completed = function () {
      this.parent.g.remove(this.sad);
      if (this.parent.q.length > 0) {
        this.parent.handleSubscribe(this.parent.q.shift());
      } else {
        this.parent.activeCount--;
        this.parent.done && this.parent.activeCount === 0 && this.parent.o.onCompleted();
      }
    };

    return MergeObserver;
  }(AbstractObserver));

  /**
  * Merges an observable sequence of observable sequences into an observable sequence, limiting the number of concurrent subscriptions to inner sequences.
  * Or merges two observable sequences into a single observable sequence.
  * @param {Mixed} [maxConcurrentOrOther] Maximum number of inner observable sequences being subscribed to concurrently or the second observable sequence.
  * @returns {Observable} The observable sequence that merges the elements of the inner sequences.
  */
  observableProto.merge = function (maxConcurrentOrOther) {
    return typeof maxConcurrentOrOther !== 'number' ?
      observableMerge(this, maxConcurrentOrOther) :
      new MergeObservable(this, maxConcurrentOrOther);
  };

  /**
   * Merges all the observable sequences into a single observable sequence.
   * The scheduler is optional and if not specified, the immediate scheduler is used.
   * @returns {Observable} The observable sequence that merges the elements of the observable sequences.
   */
  var observableMerge = Observable.merge = function () {
    var scheduler, sources = [], i, len = arguments.length;
    if (!arguments[0]) {
      scheduler = immediateScheduler;
      for(i = 1; i < len; i++) { sources.push(arguments[i]); }
    } else if (isScheduler(arguments[0])) {
      scheduler = arguments[0];
      for(i = 1; i < len; i++) { sources.push(arguments[i]); }
    } else {
      scheduler = immediateScheduler;
      for(i = 0; i < len; i++) { sources.push(arguments[i]); }
    }
    if (Array.isArray(sources[0])) {
      sources = sources[0];
    }
    return observableOf(scheduler, sources).mergeAll();
  };

  var MergeAllObservable = (function (__super__) {
    inherits(MergeAllObservable, __super__);

    function MergeAllObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    MergeAllObservable.prototype.subscribeCore = function (o) {
      var g = new CompositeDisposable(), m = new SingleAssignmentDisposable();
      g.add(m);
      m.setDisposable(this.source.subscribe(new MergeAllObserver(o, g)));
      return g;
    };

    return MergeAllObservable;
  }(ObservableBase));

  var MergeAllObserver = (function (__super__) {
    function MergeAllObserver(o, g) {
      this.o = o;
      this.g = g;
      this.done = false;
      __super__.call(this);
    }

    inherits(MergeAllObserver, __super__);

    MergeAllObserver.prototype.next = function(innerSource) {
      var sad = new SingleAssignmentDisposable();
      this.g.add(sad);
      isPromise(innerSource) && (innerSource = observableFromPromise(innerSource));
      sad.setDisposable(innerSource.subscribe(new InnerObserver(this, sad)));
    };

    MergeAllObserver.prototype.error = function (e) {
      this.o.onError(e);
    };

    MergeAllObserver.prototype.completed = function () {
      this.done = true;
      this.g.length === 1 && this.o.onCompleted();
    };

    function InnerObserver(parent, sad) {
      this.parent = parent;
      this.sad = sad;
      __super__.call(this);
    }

    inherits(InnerObserver, __super__);

    InnerObserver.prototype.next = function (x) {
      this.parent.o.onNext(x);
    };
    InnerObserver.prototype.error = function (e) {
      this.parent.o.onError(e);
    };
    InnerObserver.prototype.completed = function () {
      this.parent.g.remove(this.sad);
      this.parent.done && this.parent.g.length === 1 && this.parent.o.onCompleted();
    };

    return MergeAllObserver;
  }(AbstractObserver));

  /**
  * Merges an observable sequence of observable sequences into an observable sequence.
  * @returns {Observable} The observable sequence that merges the elements of the inner sequences.
  */
  observableProto.mergeAll = function () {
    return new MergeAllObservable(this);
  };

  var CompositeError = Rx.CompositeError = function(errors) {
    this.innerErrors = errors;
    this.message = 'This contains multiple errors. Check the innerErrors';
    Error.call(this);
  };
  CompositeError.prototype = Object.create(Error.prototype);
  CompositeError.prototype.name = 'CompositeError';

  var MergeDelayErrorObservable = (function(__super__) {
    inherits(MergeDelayErrorObservable, __super__);
    function MergeDelayErrorObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    MergeDelayErrorObservable.prototype.subscribeCore = function (o) {
      var group = new CompositeDisposable(),
        m = new SingleAssignmentDisposable(),
        state = { isStopped: false, errors: [], o: o };

      group.add(m);
      m.setDisposable(this.source.subscribe(new MergeDelayErrorObserver(group, state)));

      return group;
    };

    return MergeDelayErrorObservable;
  }(ObservableBase));

  var MergeDelayErrorObserver = (function(__super__) {
    inherits(MergeDelayErrorObserver, __super__);
    function MergeDelayErrorObserver(group, state) {
      this._group = group;
      this._state = state;
      __super__.call(this);
    }

    function setCompletion(o, errors) {
      if (errors.length === 0) {
        o.onCompleted();
      } else if (errors.length === 1) {
        o.onError(errors[0]);
      } else {
        o.onError(new CompositeError(errors));
      }
    }

    MergeDelayErrorObserver.prototype.next = function (x) {
      var inner = new SingleAssignmentDisposable();
      this._group.add(inner);

      // Check for promises support
      isPromise(x) && (x = observableFromPromise(x));
      inner.setDisposable(x.subscribe(new InnerObserver(inner, this._group, this._state)));
    };

    MergeDelayErrorObserver.prototype.error = function (e) {
      this._state.errors.push(e);
      this._state.isStopped = true;
      this._group.length === 1 && setCompletion(this._state.o, this._state.errors);
    };

    MergeDelayErrorObserver.prototype.completed = function () {
      this._state.isStopped = true;
      this._group.length === 1 && setCompletion(this._state.o, this._state.errors);
    };

    inherits(InnerObserver, __super__);
    function InnerObserver(inner, group, state) {
      this._inner = inner;
      this._group = group;
      this._state = state;
      __super__.call(this);
    }

    InnerObserver.prototype.next = function (x) { this._state.o.onNext(x); };
    InnerObserver.prototype.error = function (e) {
      this._state.errors.push(e);
      this._group.remove(this._inner);
      this._state.isStopped && this._group.length === 1 && setCompletion(this._state.o, this._state.errors);
    };
    InnerObserver.prototype.completed = function () {
      this._group.remove(this._inner);
      this._state.isStopped && this._group.length === 1 && setCompletion(this._state.o, this._state.errors);
    };

    return MergeDelayErrorObserver;
  }(AbstractObserver));

  /**
  * Flattens an Observable that emits Observables into one Observable, in a way that allows an Observer to
  * receive all successfully emitted items from all of the source Observables without being interrupted by
  * an error notification from one of them.
  *
  * This behaves like Observable.prototype.mergeAll except that if any of the merged Observables notify of an
  * error via the Observer's onError, mergeDelayError will refrain from propagating that
  * error notification until all of the merged Observables have finished emitting items.
  * @param {Array | Arguments} args Arguments or an array to merge.
  * @returns {Observable} an Observable that emits all of the items emitted by the Observables emitted by the Observable
  */
  Observable.mergeDelayError = function() {
    var args;
    if (Array.isArray(arguments[0])) {
      args = arguments[0];
    } else {
      var len = arguments.length;
      args = new Array(len);
      for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    }
    var source = observableOf(null, args);
    return new MergeDelayErrorObservable(source);
  };

  /**
   * Continues an observable sequence that is terminated normally or by an exception with the next observable sequence.
   * @param {Observable} second Second observable sequence used to produce results after the first sequence terminates.
   * @returns {Observable} An observable sequence that concatenates the first and second sequence, even if the first sequence terminates exceptionally.
   */
  observableProto.onErrorResumeNext = function (second) {
    if (!second) { throw new Error('Second observable is required'); }
    return onErrorResumeNext([this, second]);
  };

  var OnErrorResumeNextObservable = (function(__super__) {
    inherits(OnErrorResumeNextObservable, __super__);
    function OnErrorResumeNextObservable(sources) {
      this.sources = sources;
      __super__.call(this);
    }

    function scheduleMethod(state, recurse) {
      if (state.pos < state.sources.length) {
        var current = state.sources[state.pos++];
        isPromise(current) && (current = observableFromPromise(current));
        var d = new SingleAssignmentDisposable();
        state.subscription.setDisposable(d);
        d.setDisposable(current.subscribe(new OnErrorResumeNextObserver(state, recurse)));
      } else {
        state.o.onCompleted();
      }
    }

    OnErrorResumeNextObservable.prototype.subscribeCore = function (o) {
      var subscription = new SerialDisposable(),
          state = {pos: 0, subscription: subscription, o: o, sources: this.sources },
          cancellable = immediateScheduler.scheduleRecursive(state, scheduleMethod);

      return new BinaryDisposable(subscription, cancellable);
    };

    return OnErrorResumeNextObservable;
  }(ObservableBase));

  var OnErrorResumeNextObserver = (function(__super__) {
    inherits(OnErrorResumeNextObserver, __super__);
    function OnErrorResumeNextObserver(state, recurse) {
      this._state = state;
      this._recurse = recurse;
      __super__.call(this);
    }

    OnErrorResumeNextObserver.prototype.next = function (x) { this._state.o.onNext(x); };
    OnErrorResumeNextObserver.prototype.error = function () { this._recurse(this._state); };
    OnErrorResumeNextObserver.prototype.completed = function () { this._recurse(this._state); };

    return OnErrorResumeNextObserver;
  }(AbstractObserver));

  /**
   * Continues an observable sequence that is terminated normally or by an exception with the next observable sequence.
   * @returns {Observable} An observable sequence that concatenates the source sequences, even if a sequence terminates exceptionally.
   */
  var onErrorResumeNext = Observable.onErrorResumeNext = function () {
    var sources = [];
    if (Array.isArray(arguments[0])) {
      sources = arguments[0];
    } else {
      var len = arguments.length;
      sources = new Array(len);
      for(var i = 0; i < len; i++) { sources[i] = arguments[i]; }
    }
    return new OnErrorResumeNextObservable(sources);
  };

  var SkipUntilObservable = (function(__super__) {
    inherits(SkipUntilObservable, __super__);

    function SkipUntilObservable(source, other) {
      this._s = source;
      this._o = isPromise(other) ? observableFromPromise(other) : other;
      this._open = false;
      __super__.call(this);
    }

    SkipUntilObservable.prototype.subscribeCore = function(o) {
      var leftSubscription = new SingleAssignmentDisposable();
      leftSubscription.setDisposable(this._s.subscribe(new SkipUntilSourceObserver(o, this)));

      isPromise(this._o) && (this._o = observableFromPromise(this._o));

      var rightSubscription = new SingleAssignmentDisposable();
      rightSubscription.setDisposable(this._o.subscribe(new SkipUntilOtherObserver(o, this, rightSubscription)));

      return new BinaryDisposable(leftSubscription, rightSubscription);
    };

    return SkipUntilObservable;
  }(ObservableBase));

  var SkipUntilSourceObserver = (function(__super__) {
    inherits(SkipUntilSourceObserver, __super__);
    function SkipUntilSourceObserver(o, p) {
      this._o = o;
      this._p = p;
      __super__.call(this);
    }

    SkipUntilSourceObserver.prototype.next = function (x) {
      this._p._open && this._o.onNext(x);
    };

    SkipUntilSourceObserver.prototype.error = function (err) {
      this._o.onError(err);
    };

    SkipUntilSourceObserver.prototype.onCompleted = function () {
      this._p._open && this._o.onCompleted();
    };

    return SkipUntilSourceObserver;
  }(AbstractObserver));

  var SkipUntilOtherObserver = (function(__super__) {
    inherits(SkipUntilOtherObserver, __super__);
    function SkipUntilOtherObserver(o, p, r) {
      this._o = o;
      this._p = p;
      this._r = r;
      __super__.call(this);
    }

    SkipUntilOtherObserver.prototype.next = function () {
      this._p._open = true;
      this._r.dispose();
    };

    SkipUntilOtherObserver.prototype.error = function (err) {
      this._o.onError(err);
    };

    SkipUntilOtherObserver.prototype.onCompleted = function () {
      this._r.dispose();
    };

    return SkipUntilOtherObserver;
  }(AbstractObserver));

  /**
   * Returns the values from the source observable sequence only after the other observable sequence produces a value.
   * @param {Observable | Promise} other The observable sequence or Promise that triggers propagation of elements of the source sequence.
   * @returns {Observable} An observable sequence containing the elements of the source sequence starting from the point the other sequence triggered propagation.
   */
  observableProto.skipUntil = function (other) {
    return new SkipUntilObservable(this, other);
  };

  var SwitchObservable = (function(__super__) {
    inherits(SwitchObservable, __super__);
    function SwitchObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    SwitchObservable.prototype.subscribeCore = function (o) {
      var inner = new SerialDisposable(), s = this.source.subscribe(new SwitchObserver(o, inner));
      return new BinaryDisposable(s, inner);
    };

    inherits(SwitchObserver, AbstractObserver);
    function SwitchObserver(o, inner) {
      this.o = o;
      this.inner = inner;
      this.stopped = false;
      this.latest = 0;
      this.hasLatest = false;
      AbstractObserver.call(this);
    }

    SwitchObserver.prototype.next = function (innerSource) {
      var d = new SingleAssignmentDisposable(), id = ++this.latest;
      this.hasLatest = true;
      this.inner.setDisposable(d);
      isPromise(innerSource) && (innerSource = observableFromPromise(innerSource));
      d.setDisposable(innerSource.subscribe(new InnerObserver(this, id)));
    };

    SwitchObserver.prototype.error = function (e) {
      this.o.onError(e);
    };

    SwitchObserver.prototype.completed = function () {
      this.stopped = true;
      !this.hasLatest && this.o.onCompleted();
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(parent, id) {
      this.parent = parent;
      this.id = id;
      AbstractObserver.call(this);
    }
    InnerObserver.prototype.next = function (x) {
      this.parent.latest === this.id && this.parent.o.onNext(x);
    };

    InnerObserver.prototype.error = function (e) {
      this.parent.latest === this.id && this.parent.o.onError(e);
    };

    InnerObserver.prototype.completed = function () {
      if (this.parent.latest === this.id) {
        this.parent.hasLatest = false;
        this.parent.stopped && this.parent.o.onCompleted();
      }
    };

    return SwitchObservable;
  }(ObservableBase));

  /**
  * Transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.
  * @returns {Observable} The observable sequence that at any point in time produces the elements of the most recent inner observable sequence that has been received.
  */
  observableProto['switch'] = observableProto.switchLatest = function () {
    return new SwitchObservable(this);
  };

  var TakeUntilObservable = (function(__super__) {
    inherits(TakeUntilObservable, __super__);

    function TakeUntilObservable(source, other) {
      this.source = source;
      this.other = isPromise(other) ? observableFromPromise(other) : other;
      __super__.call(this);
    }

    TakeUntilObservable.prototype.subscribeCore = function(o) {
      return new BinaryDisposable(
        this.source.subscribe(o),
        this.other.subscribe(new TakeUntilObserver(o))
      );
    };

    return TakeUntilObservable;
  }(ObservableBase));

  var TakeUntilObserver = (function(__super__) {
    inherits(TakeUntilObserver, __super__);
    function TakeUntilObserver(o) {
      this._o = o;
      __super__.call(this);
    }

    TakeUntilObserver.prototype.next = function () {
      this._o.onCompleted();
    };

    TakeUntilObserver.prototype.error = function (err) {
      this._o.onError(err);
    };

    TakeUntilObserver.prototype.onCompleted = noop;

    return TakeUntilObserver;
  }(AbstractObserver));

  /**
   * Returns the values from the source observable sequence until the other observable sequence produces a value.
   * @param {Observable | Promise} other Observable sequence or Promise that terminates propagation of elements of the source sequence.
   * @returns {Observable} An observable sequence containing the elements of the source sequence up to the point the other sequence interrupted further propagation.
   */
  observableProto.takeUntil = function (other) {
    return new TakeUntilObservable(this, other);
  };

  function falseFactory() { return false; }
  function argumentsToArray() {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return args;
  }

  var WithLatestFromObservable = (function(__super__) {
    inherits(WithLatestFromObservable, __super__);
    function WithLatestFromObservable(source, sources, resultSelector) {
      this._s = source;
      this._ss = sources;
      this._cb = resultSelector;
      __super__.call(this);
    }

    WithLatestFromObservable.prototype.subscribeCore = function (o) {
      var len = this._ss.length;
      var state = {
        hasValue: arrayInitialize(len, falseFactory),
        hasValueAll: false,
        values: new Array(len)
      };

      var n = this._ss.length, subscriptions = new Array(n + 1);
      for (var i = 0; i < n; i++) {
        var other = this._ss[i], sad = new SingleAssignmentDisposable();
        isPromise(other) && (other = observableFromPromise(other));
        sad.setDisposable(other.subscribe(new WithLatestFromOtherObserver(o, i, state)));
        subscriptions[i] = sad;
      }

      var outerSad = new SingleAssignmentDisposable();
      outerSad.setDisposable(this._s.subscribe(new WithLatestFromSourceObserver(o, this._cb, state)));
      subscriptions[n] = outerSad;

      return new NAryDisposable(subscriptions);
    };

    return WithLatestFromObservable;
  }(ObservableBase));

  var WithLatestFromOtherObserver = (function (__super__) {
    inherits(WithLatestFromOtherObserver, __super__);
    function WithLatestFromOtherObserver(o, i, state) {
      this._o = o;
      this._i = i;
      this._state = state;
      __super__.call(this);
    }

    WithLatestFromOtherObserver.prototype.next = function (x) {
      this._state.values[this._i] = x;
      this._state.hasValue[this._i] = true;
      this._state.hasValueAll = this._state.hasValue.every(identity);
    };

    WithLatestFromOtherObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    WithLatestFromOtherObserver.prototype.completed = noop;

    return WithLatestFromOtherObserver;
  }(AbstractObserver));

  var WithLatestFromSourceObserver = (function (__super__) {
    inherits(WithLatestFromSourceObserver, __super__);
    function WithLatestFromSourceObserver(o, cb, state) {
      this._o = o;
      this._cb = cb;
      this._state = state;
      __super__.call(this);
    }

    WithLatestFromSourceObserver.prototype.next = function (x) {
      var allValues = [x].concat(this._state.values);
      if (!this._state.hasValueAll) { return; }
      var res = tryCatch(this._cb).apply(null, allValues);
      if (res === errorObj) { return this._o.onError(res.e); }
      this._o.onNext(res);
    };

    WithLatestFromSourceObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    WithLatestFromSourceObserver.prototype.completed = function () {
      this._o.onCompleted();
    };

    return WithLatestFromSourceObserver;
  }(AbstractObserver));

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function only when the (first) source observable sequence produces an element.
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  observableProto.withLatestFrom = function () {
    if (arguments.length === 0) { throw new Error('invalid arguments'); }

    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);

    return new WithLatestFromObservable(this, args, resultSelector);
  };

  function falseFactory() { return false; }
  function emptyArrayFactory() { return []; }

  var ZipObservable = (function(__super__) {
    inherits(ZipObservable, __super__);
    function ZipObservable(sources, resultSelector) {
      this._s = sources;
      this._cb = resultSelector;
      __super__.call(this);
    }

    ZipObservable.prototype.subscribeCore = function(observer) {
      var n = this._s.length,
          subscriptions = new Array(n),
          done = arrayInitialize(n, falseFactory),
          q = arrayInitialize(n, emptyArrayFactory);

      for (var i = 0; i < n; i++) {
        var source = this._s[i], sad = new SingleAssignmentDisposable();
        subscriptions[i] = sad;
        isPromise(source) && (source = observableFromPromise(source));
        sad.setDisposable(source.subscribe(new ZipObserver(observer, i, this, q, done)));
      }

      return new NAryDisposable(subscriptions);
    };

    return ZipObservable;
  }(ObservableBase));

  var ZipObserver = (function (__super__) {
    inherits(ZipObserver, __super__);
    function ZipObserver(o, i, p, q, d) {
      this._o = o;
      this._i = i;
      this._p = p;
      this._q = q;
      this._d = d;
      __super__.call(this);
    }

    function notEmpty(x) { return x.length > 0; }
    function shiftEach(x) { return x.shift(); }
    function notTheSame(i) {
      return function (x, j) {
        return j !== i;
      };
    }

    ZipObserver.prototype.next = function (x) {
      this._q[this._i].push(x);
      if (this._q.every(notEmpty)) {
        var queuedValues = this._q.map(shiftEach);
        var res = tryCatch(this._p._cb).apply(null, queuedValues);
        if (res === errorObj) { return this._o.onError(res.e); }
        this._o.onNext(res);
      } else if (this._d.filter(notTheSame(this._i)).every(identity)) {
        this._o.onCompleted();
      }
    };

    ZipObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ZipObserver.prototype.completed = function () {
      this._d[this._i] = true;
      this._d.every(identity) && this._o.onCompleted();
    };

    return ZipObserver;
  }(AbstractObserver));

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences or an array have produced an element at a corresponding index.
   * The last element in the arguments must be a function to invoke for each series of elements at corresponding indexes in the args.
   * @returns {Observable} An observable sequence containing the result of combining elements of the args using the specified result selector function.
   */
  observableProto.zip = function () {
    if (arguments.length === 0) { throw new Error('invalid arguments'); }

    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);

    var parent = this;
    args.unshift(parent);

    return new ZipObservable(args, resultSelector);
  };

  /**
   * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences have produced an element at a corresponding index.
   * @param arguments Observable sources.
   * @param {Function} resultSelector Function to invoke for each series of elements at corresponding indexes in the sources.
   * @returns {Observable} An observable sequence containing the result of combining elements of the sources using the specified result selector function.
   */
  Observable.zip = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    if (Array.isArray(args[0])) {
      args = isFunction(args[1]) ? args[0].concat(args[1]) : args[0];
    }
    var first = args.shift();
    return first.zip.apply(first, args);
  };

function falseFactory() { return false; }
function emptyArrayFactory() { return []; }
function argumentsToArray() {
  var len = arguments.length, args = new Array(len);
  for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
  return args;
}

var ZipIterableObservable = (function(__super__) {
  inherits(ZipIterableObservable, __super__);
  function ZipIterableObservable(sources, cb) {
    this.sources = sources;
    this._cb = cb;
    __super__.call(this);
  }

  ZipIterableObservable.prototype.subscribeCore = function (o) {
    var sources = this.sources, len = sources.length, subscriptions = new Array(len);

    var state = {
      q: arrayInitialize(len, emptyArrayFactory),
      done: arrayInitialize(len, falseFactory),
      cb: this._cb,
      o: o
    };

    for (var i = 0; i < len; i++) {
      (function (i) {
        var source = sources[i], sad = new SingleAssignmentDisposable();
        (isArrayLike(source) || isIterable(source)) && (source = observableFrom(source));

        subscriptions[i] = sad;
        sad.setDisposable(source.subscribe(new ZipIterableObserver(state, i)));
      }(i));
    }

    return new NAryDisposable(subscriptions);
  };

  return ZipIterableObservable;
}(ObservableBase));

var ZipIterableObserver = (function (__super__) {
  inherits(ZipIterableObserver, __super__);
  function ZipIterableObserver(s, i) {
    this._s = s;
    this._i = i;
    __super__.call(this);
  }

  function notEmpty(x) { return x.length > 0; }
  function shiftEach(x) { return x.shift(); }
  function notTheSame(i) {
    return function (x, j) {
      return j !== i;
    };
  }

  ZipIterableObserver.prototype.next = function (x) {
    this._s.q[this._i].push(x);
    if (this._s.q.every(notEmpty)) {
      var queuedValues = this._s.q.map(shiftEach),
          res = tryCatch(this._s.cb).apply(null, queuedValues);
      if (res === errorObj) { return this._s.o.onError(res.e); }
      this._s.o.onNext(res);
    } else if (this._s.done.filter(notTheSame(this._i)).every(identity)) {
      this._s.o.onCompleted();
    }
  };

  ZipIterableObserver.prototype.error = function (e) { this._s.o.onError(e); };

  ZipIterableObserver.prototype.completed = function () {
    this._s.done[this._i] = true;
    this._s.done.every(identity) && this._s.o.onCompleted();
  };

  return ZipIterableObserver;
}(AbstractObserver));

/**
 * Merges the specified observable sequences into one observable sequence by using the selector function whenever all of the observable sequences or an array have produced an element at a corresponding index.
 * The last element in the arguments must be a function to invoke for each series of elements at corresponding indexes in the args.
 * @returns {Observable} An observable sequence containing the result of combining elements of the args using the specified result selector function.
 */
observableProto.zipIterable = function () {
  if (arguments.length === 0) { throw new Error('invalid arguments'); }

  var len = arguments.length, args = new Array(len);
  for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
  var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;

  var parent = this;
  args.unshift(parent);
  return new ZipIterableObservable(args, resultSelector);
};

  function asObservable(source) {
    return function subscribe(o) { return source.subscribe(o); };
  }

  /**
   *  Hides the identity of an observable sequence.
   * @returns {Observable} An observable sequence that hides the identity of the source sequence.
   */
  observableProto.asObservable = function () {
    return new AnonymousObservable(asObservable(this), this);
  };

  function toArray(x) { return x.toArray(); }
  function notEmpty(x) { return x.length > 0; }

  /**
   *  Projects each element of an observable sequence into zero or more buffers which are produced based on element count information.
   * @param {Number} count Length of each buffer.
   * @param {Number} [skip] Number of elements to skip between creation of consecutive buffers. If not provided, defaults to the count.
   * @returns {Observable} An observable sequence of buffers.
   */
  observableProto.bufferWithCount = observableProto.bufferCount = function (count, skip) {
    typeof skip !== 'number' && (skip = count);
    return this.windowWithCount(count, skip)
      .flatMap(toArray)
      .filter(notEmpty);
  };

  var DematerializeObservable = (function (__super__) {
    inherits(DematerializeObservable, __super__);
    function DematerializeObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    DematerializeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new DematerializeObserver(o));
    };

    return DematerializeObservable;
  }(ObservableBase));

  var DematerializeObserver = (function (__super__) {
    inherits(DematerializeObserver, __super__);

    function DematerializeObserver(o) {
      this._o = o;
      __super__.call(this);
    }

    DematerializeObserver.prototype.next = function (x) { x.accept(this._o); };
    DematerializeObserver.prototype.error = function (e) { this._o.onError(e); };
    DematerializeObserver.prototype.completed = function () { this._o.onCompleted(); };

    return DematerializeObserver;
  }(AbstractObserver));

  /**
   * Dematerializes the explicit notification values of an observable sequence as implicit notifications.
   * @returns {Observable} An observable sequence exhibiting the behavior corresponding to the source sequence's notification values.
   */
  observableProto.dematerialize = function () {
    return new DematerializeObservable(this);
  };

  var DistinctUntilChangedObservable = (function(__super__) {
    inherits(DistinctUntilChangedObservable, __super__);
    function DistinctUntilChangedObservable(source, keyFn, comparer) {
      this.source = source;
      this.keyFn = keyFn;
      this.comparer = comparer;
      __super__.call(this);
    }

    DistinctUntilChangedObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new DistinctUntilChangedObserver(o, this.keyFn, this.comparer));
    };

    return DistinctUntilChangedObservable;
  }(ObservableBase));

  var DistinctUntilChangedObserver = (function(__super__) {
    inherits(DistinctUntilChangedObserver, __super__);
    function DistinctUntilChangedObserver(o, keyFn, comparer) {
      this.o = o;
      this.keyFn = keyFn;
      this.comparer = comparer;
      this.hasCurrentKey = false;
      this.currentKey = null;
      __super__.call(this);
    }

    DistinctUntilChangedObserver.prototype.next = function (x) {
      var key = x, comparerEquals;
      if (isFunction(this.keyFn)) {
        key = tryCatch(this.keyFn)(x);
        if (key === errorObj) { return this.o.onError(key.e); }
      }
      if (this.hasCurrentKey) {
        comparerEquals = tryCatch(this.comparer)(this.currentKey, key);
        if (comparerEquals === errorObj) { return this.o.onError(comparerEquals.e); }
      }
      if (!this.hasCurrentKey || !comparerEquals) {
        this.hasCurrentKey = true;
        this.currentKey = key;
        this.o.onNext(x);
      }
    };
    DistinctUntilChangedObserver.prototype.error = function(e) {
      this.o.onError(e);
    };
    DistinctUntilChangedObserver.prototype.completed = function () {
      this.o.onCompleted();
    };

    return DistinctUntilChangedObserver;
  }(AbstractObserver));

  /**
  *  Returns an observable sequence that contains only distinct contiguous elements according to the keyFn and the comparer.
  * @param {Function} [keyFn] A function to compute the comparison key for each element. If not provided, it projects the value.
  * @param {Function} [comparer] Equality comparer for computed key values. If not provided, defaults to an equality comparer function.
  * @returns {Observable} An observable sequence only containing the distinct contiguous elements, based on a computed key value, from the source sequence.
  */
  observableProto.distinctUntilChanged = function (keyFn, comparer) {
    comparer || (comparer = defaultComparer);
    return new DistinctUntilChangedObservable(this, keyFn, comparer);
  };

  var TapObservable = (function(__super__) {
    inherits(TapObservable,__super__);
    function TapObservable(source, observerOrOnNext, onError, onCompleted) {
      this.source = source;
      this._oN = observerOrOnNext;
      this._oE = onError;
      this._oC = onCompleted;
      __super__.call(this);
    }

    TapObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new InnerObserver(o, this));
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(o, p) {
      this.o = o;
      this.t = !p._oN || isFunction(p._oN) ?
        observerCreate(p._oN || noop, p._oE || noop, p._oC || noop) :
        p._oN;
      this.isStopped = false;
      AbstractObserver.call(this);
    }
    InnerObserver.prototype.next = function(x) {
      var res = tryCatch(this.t.onNext).call(this.t, x);
      if (res === errorObj) { this.o.onError(res.e); }
      this.o.onNext(x);
    };
    InnerObserver.prototype.error = function(err) {
      var res = tryCatch(this.t.onError).call(this.t, err);
      if (res === errorObj) { return this.o.onError(res.e); }
      this.o.onError(err);
    };
    InnerObserver.prototype.completed = function() {
      var res = tryCatch(this.t.onCompleted).call(this.t);
      if (res === errorObj) { return this.o.onError(res.e); }
      this.o.onCompleted();
    };

    return TapObservable;
  }(ObservableBase));

  /**
  *  Invokes an action for each element in the observable sequence and invokes an action upon graceful or exceptional termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function | Observer} observerOrOnNext Action to invoke for each element in the observable sequence or an o.
  * @param {Function} [onError]  Action to invoke upon exceptional termination of the observable sequence. Used if only the observerOrOnNext parameter is also a function.
  * @param {Function} [onCompleted]  Action to invoke upon graceful termination of the observable sequence. Used if only the observerOrOnNext parameter is also a function.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto['do'] = observableProto.tap = observableProto.doAction = function (observerOrOnNext, onError, onCompleted) {
    return new TapObservable(this, observerOrOnNext, onError, onCompleted);
  };

  /**
  *  Invokes an action for each element in the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onNext Action to invoke for each element in the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnNext = observableProto.tapOnNext = function (onNext, thisArg) {
    return this.tap(typeof thisArg !== 'undefined' ? function (x) { onNext.call(thisArg, x); } : onNext);
  };

  /**
  *  Invokes an action upon exceptional termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onError Action to invoke upon exceptional termination of the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnError = observableProto.tapOnError = function (onError, thisArg) {
    return this.tap(noop, typeof thisArg !== 'undefined' ? function (e) { onError.call(thisArg, e); } : onError);
  };

  /**
  *  Invokes an action upon graceful termination of the observable sequence.
  *  This method can be used for debugging, logging, etc. of query behavior by intercepting the message stream to run arbitrary actions for messages on the pipeline.
  * @param {Function} onCompleted Action to invoke upon graceful termination of the observable sequence.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} The source sequence with the side-effecting behavior applied.
  */
  observableProto.doOnCompleted = observableProto.tapOnCompleted = function (onCompleted, thisArg) {
    return this.tap(noop, null, typeof thisArg !== 'undefined' ? function () { onCompleted.call(thisArg); } : onCompleted);
  };

  var FinallyObservable = (function (__super__) {
    inherits(FinallyObservable, __super__);
    function FinallyObservable(source, fn, thisArg) {
      this.source = source;
      this._fn = bindCallback(fn, thisArg, 0);
      __super__.call(this);
    }

    FinallyObservable.prototype.subscribeCore = function (o) {
      var d = tryCatch(this.source.subscribe).call(this.source, o);
      if (d === errorObj) {
        this._fn();
        thrower(d.e);
      }

      return new FinallyDisposable(d, this._fn);
    };

    function FinallyDisposable(s, fn) {
      this.isDisposed = false;
      this._s = s;
      this._fn = fn;
    }
    FinallyDisposable.prototype.dispose = function () {
      if (!this.isDisposed) {
        var res = tryCatch(this._s.dispose).call(this._s);
        this._fn();
        res === errorObj && thrower(res.e);
      }
    };

    return FinallyObservable;

  }(ObservableBase));

  /**
   *  Invokes a specified action after the source observable sequence terminates gracefully or exceptionally.
   * @param {Function} finallyAction Action to invoke after the source observable sequence terminates.
   * @returns {Observable} Source sequence with the action-invoking termination behavior applied.
   */
  observableProto['finally'] = function (action, thisArg) {
    return new FinallyObservable(this, action, thisArg);
  };

  var IgnoreElementsObservable = (function(__super__) {
    inherits(IgnoreElementsObservable, __super__);

    function IgnoreElementsObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    IgnoreElementsObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o));
    };

    function InnerObserver(o) {
      this.o = o;
      this.isStopped = false;
    }
    InnerObserver.prototype.onNext = noop;
    InnerObserver.prototype.onError = function (err) {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onError(err);
      }
    };
    InnerObserver.prototype.onCompleted = function () {
      if(!this.isStopped) {
        this.isStopped = true;
        this.o.onCompleted();
      }
    };
    InnerObserver.prototype.dispose = function() { this.isStopped = true; };
    InnerObserver.prototype.fail = function (e) {
      if (!this.isStopped) {
        this.isStopped = true;
        this.observer.onError(e);
        return true;
      }

      return false;
    };

    return IgnoreElementsObservable;
  }(ObservableBase));

  /**
   *  Ignores all elements in an observable sequence leaving only the termination messages.
   * @returns {Observable} An empty observable sequence that signals termination, successful or exceptional, of the source sequence.
   */
  observableProto.ignoreElements = function () {
    return new IgnoreElementsObservable(this);
  };

  var MaterializeObservable = (function (__super__) {
    inherits(MaterializeObservable, __super__);
    function MaterializeObservable(source, fn) {
      this.source = source;
      __super__.call(this);
    }

    MaterializeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new MaterializeObserver(o));
    };

    return MaterializeObservable;
  }(ObservableBase));

  var MaterializeObserver = (function (__super__) {
    inherits(MaterializeObserver, __super__);

    function MaterializeObserver(o) {
      this._o = o;
      __super__.call(this);
    }

    MaterializeObserver.prototype.next = function (x) { this._o.onNext(notificationCreateOnNext(x)) };
    MaterializeObserver.prototype.error = function (e) { this._o.onNext(notificationCreateOnError(e)); this._o.onCompleted(); };
    MaterializeObserver.prototype.completed = function () { this._o.onNext(notificationCreateOnCompleted()); this._o.onCompleted(); };

    return MaterializeObserver;
  }(AbstractObserver));

  /**
   *  Materializes the implicit notifications of an observable sequence as explicit notification values.
   * @returns {Observable} An observable sequence containing the materialized notification values from the source sequence.
   */
  observableProto.materialize = function () {
    return new MaterializeObservable(this);
  };

  /**
   *  Repeats the observable sequence a specified number of times. If the repeat count is not specified, the sequence repeats indefinitely.
   * @param {Number} [repeatCount]  Number of times to repeat the sequence. If not provided, repeats the sequence indefinitely.
   * @returns {Observable} The observable sequence producing the elements of the given sequence repeatedly.
   */
  observableProto.repeat = function (repeatCount) {
    return enumerableRepeat(this, repeatCount).concat();
  };

  /**
   *  Repeats the source observable sequence the specified number of times or until it successfully terminates. If the retry count is not specified, it retries indefinitely.
   *  Note if you encounter an error and want it to retry once, then you must use .retry(2);
   *
   * @example
   *  var res = retried = retry.repeat();
   *  var res = retried = retry.repeat(2);
   * @param {Number} [retryCount]  Number of times to retry the sequence. If not provided, retry the sequence indefinitely.
   * @returns {Observable} An observable sequence producing the elements of the given sequence repeatedly until it terminates successfully.
   */
  observableProto.retry = function (retryCount) {
    return enumerableRepeat(this, retryCount).catchError();
  };

  function repeat(value) {
    return {
      '@@iterator': function () {
        return {
          next: function () {
            return { done: false, value: value };
          }
        };
      }
    };
  }

  var RetryWhenObservable = (function(__super__) {
    function createDisposable(state) {
      return {
        isDisposed: false,
        dispose: function () {
          if (!this.isDisposed) {
            this.isDisposed = true;
            state.isDisposed = true;
          }
        }
      };
    }

    function RetryWhenObservable(source, notifier) {
      this.source = source;
      this._notifier = notifier;
      __super__.call(this);
    }

    inherits(RetryWhenObservable, __super__);

    RetryWhenObservable.prototype.subscribeCore = function (o) {
      var exceptions = new Subject(),
        notifier = new Subject(),
        handled = this._notifier(exceptions),
        notificationDisposable = handled.subscribe(notifier);

      var e = this.source['@@iterator']();

      var state = { isDisposed: false },
        lastError,
        subscription = new SerialDisposable();
      var cancelable = currentThreadScheduler.scheduleRecursive(null, function (_, recurse) {
        if (state.isDisposed) { return; }
        var currentItem = e.next();

        if (currentItem.done) {
          if (lastError) {
            o.onError(lastError);
          } else {
            o.onCompleted();
          }
          return;
        }

        // Check if promise
        var currentValue = currentItem.value;
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var outer = new SingleAssignmentDisposable();
        var inner = new SingleAssignmentDisposable();
        subscription.setDisposable(new BinaryDisposable(inner, outer));
        outer.setDisposable(currentValue.subscribe(
          function(x) { o.onNext(x); },
          function (exn) {
            inner.setDisposable(notifier.subscribe(recurse, function(ex) {
              o.onError(ex);
            }, function() {
              o.onCompleted();
            }));

            exceptions.onNext(exn);
            outer.dispose();
          },
          function() { o.onCompleted(); }));
      });

      return new NAryDisposable([notificationDisposable, subscription, cancelable, createDisposable(state)]);
    };

    return RetryWhenObservable;
  }(ObservableBase));

  observableProto.retryWhen = function (notifier) {
    return new RetryWhenObservable(repeat(this), notifier);
  };

  function repeat(value) {
    return {
      '@@iterator': function () {
        return {
          next: function () {
            return { done: false, value: value };
          }
        };
      }
    };
  }

  var RepeatWhenObservable = (function(__super__) {
    function createDisposable(state) {
      return {
        isDisposed: false,
        dispose: function () {
          if (!this.isDisposed) {
            this.isDisposed = true;
            state.isDisposed = true;
          }
        }
      };
    }

    function RepeatWhenObservable(source, notifier) {
      this.source = source;
      this._notifier = notifier;
      __super__.call(this);
    }

    inherits(RepeatWhenObservable, __super__);

    RepeatWhenObservable.prototype.subscribeCore = function (o) {
      var completions = new Subject(),
        notifier = new Subject(),
        handled = this._notifier(completions),
        notificationDisposable = handled.subscribe(notifier);

      var e = this.source['@@iterator']();

      var state = { isDisposed: false },
        lastError,
        subscription = new SerialDisposable();
      var cancelable = currentThreadScheduler.scheduleRecursive(null, function (_, recurse) {
        if (state.isDisposed) { return; }
        var currentItem = e.next();

        if (currentItem.done) {
          if (lastError) {
            o.onError(lastError);
          } else {
            o.onCompleted();
          }
          return;
        }

        // Check if promise
        var currentValue = currentItem.value;
        isPromise(currentValue) && (currentValue = observableFromPromise(currentValue));

        var outer = new SingleAssignmentDisposable();
        var inner = new SingleAssignmentDisposable();
        subscription.setDisposable(new BinaryDisposable(inner, outer));
        outer.setDisposable(currentValue.subscribe(
          function(x) { o.onNext(x); },
          function (exn) { o.onError(exn); },
          function() {
            inner.setDisposable(notifier.subscribe(recurse, function(ex) {
              o.onError(ex);
            }, function() {
              o.onCompleted();
            }));

            completions.onNext(null);
            outer.dispose();
          }));
      });

      return new NAryDisposable([notificationDisposable, subscription, cancelable, createDisposable(state)]);
    };

    return RepeatWhenObservable;
  }(ObservableBase));

  observableProto.repeatWhen = function (notifier) {
    return new RepeatWhenObservable(repeat(this), notifier);
  };

  var ScanObservable = (function(__super__) {
    inherits(ScanObservable, __super__);
    function ScanObservable(source, accumulator, hasSeed, seed) {
      this.source = source;
      this.accumulator = accumulator;
      this.hasSeed = hasSeed;
      this.seed = seed;
      __super__.call(this);
    }

    ScanObservable.prototype.subscribeCore = function(o) {
      return this.source.subscribe(new ScanObserver(o,this));
    };

    return ScanObservable;
  }(ObservableBase));

  var ScanObserver = (function (__super__) {
    inherits(ScanObserver, __super__);
    function ScanObserver(o, parent) {
      this._o = o;
      this._p = parent;
      this._fn = parent.accumulator;
      this._hs = parent.hasSeed;
      this._s = parent.seed;
      this._ha = false;
      this._a = null;
      this._hv = false;
      this._i = 0;
      __super__.call(this);
    }

    ScanObserver.prototype.next = function (x) {
      !this._hv && (this._hv = true);
      if (this._ha) {
        this._a = tryCatch(this._fn)(this._a, x, this._i, this._p);
      } else {
        this._a = this._hs ? tryCatch(this._fn)(this._s, x, this._i, this._p) : x;
        this._ha = true;
      }
      if (this._a === errorObj) { return this._o.onError(this._a.e); }
      this._o.onNext(this._a);
      this._i++;
    };

    ScanObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ScanObserver.prototype.completed = function () {
      !this._hv && this._hs && this._o.onNext(this._s);
      this._o.onCompleted();
    };

    return ScanObserver;
  }(AbstractObserver));

  /**
  *  Applies an accumulator function over an observable sequence and returns each intermediate result. The optional seed value is used as the initial accumulator value.
  *  For aggregation behavior with no intermediate results, see Observable.aggregate.
  * @param {Mixed} [seed] The initial accumulator value.
  * @param {Function} accumulator An accumulator function to be invoked on each element.
  * @returns {Observable} An observable sequence containing the accumulated values.
  */
  observableProto.scan = function () {
    var hasSeed = false, seed, accumulator = arguments[0];
    if (arguments.length === 2) {
      hasSeed = true;
      seed = arguments[1];
    }
    return new ScanObservable(this, accumulator, hasSeed, seed);
  };

  var SkipLastObservable = (function (__super__) {
    inherits(SkipLastObservable, __super__);
    function SkipLastObservable(source, c) {
      this.source = source;
      this._c = c;
      __super__.call(this);
    }

    SkipLastObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SkipLastObserver(o, this._c));
    };

    return SkipLastObservable;
  }(ObservableBase));

  var SkipLastObserver = (function (__super__) {
    inherits(SkipLastObserver, __super__);
    function SkipLastObserver(o, c) {
      this._o = o;
      this._c = c;
      this._q = [];
      __super__.call(this);
    }

    SkipLastObserver.prototype.next = function (x) {
      this._q.push(x);
      this._q.length > this._c && this._o.onNext(this._q.shift());
    };

    SkipLastObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    SkipLastObserver.prototype.completed = function () {
      this._o.onCompleted();
    };

    return SkipLastObserver;
  }(AbstractObserver));

  /**
   *  Bypasses a specified number of elements at the end of an observable sequence.
   * @description
   *  This operator accumulates a queue with a length enough to store the first `count` elements. As more elements are
   *  received, elements are taken from the front of the queue and produced on the result sequence. This causes elements to be delayed.
   * @param count Number of elements to bypass at the end of the source sequence.
   * @returns {Observable} An observable sequence containing the source sequence elements except for the bypassed ones at the end.
   */
  observableProto.skipLast = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    return new SkipLastObservable(this, count);
  };

  /**
   *  Prepends a sequence of values to an observable sequence with an optional scheduler and an argument list of values to prepend.
   *  @example
   *  var res = source.startWith(1, 2, 3);
   *  var res = source.startWith(Rx.Scheduler.timeout, 1, 2, 3);
   * @param {Arguments} args The specified values to prepend to the observable sequence
   * @returns {Observable} The source sequence prepended with the specified values.
   */
  observableProto.startWith = function () {
    var values, scheduler, start = 0;
    if (!!arguments.length && isScheduler(arguments[0])) {
      scheduler = arguments[0];
      start = 1;
    } else {
      scheduler = immediateScheduler;
    }
    for(var args = [], i = start, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
    return observableConcat.apply(null, [observableFromArray(args, scheduler), this]);
  };

  var TakeLastObserver = (function (__super__) {
    inherits(TakeLastObserver, __super__);
    function TakeLastObserver(o, c) {
      this._o = o;
      this._c = c;
      this._q = [];
      __super__.call(this);
    }

    TakeLastObserver.prototype.next = function (x) {
      this._q.push(x);
      this._q.length > this._c && this._q.shift();
    };

    TakeLastObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    TakeLastObserver.prototype.completed = function () {
      while (this._q.length > 0) { this._o.onNext(this._q.shift()); }
      this._o.onCompleted();
    };

    return TakeLastObserver;
  }(AbstractObserver));

  /**
   *  Returns a specified number of contiguous elements from the end of an observable sequence.
   * @description
   *  This operator accumulates a buffer with a length enough to store elements count elements. Upon completion of
   *  the source sequence, this buffer is drained on the result sequence. This causes the elements to be delayed.
   * @param {Number} count Number of elements to take from the end of the source sequence.
   * @returns {Observable} An observable sequence containing the specified number of elements from the end of the source sequence.
   */
  observableProto.takeLast = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    var source = this;
    return new AnonymousObservable(function (o) {
      return source.subscribe(new TakeLastObserver(o, count));
    }, source);
  };

  var TakeLastBufferObserver = (function (__super__) {
    inherits(TakeLastBufferObserver, __super__);
    function TakeLastBufferObserver(o, c) {
      this._o = o;
      this._c = c;
      this._q = [];
      __super__.call(this);
    }

    TakeLastBufferObserver.prototype.next = function (x) {
      this._q.push(x);
      this._q.length > this._c && this._q.shift();
    };

    TakeLastBufferObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    TakeLastBufferObserver.prototype.completed = function () {
      this._o.onNext(this._q);
      this._o.onCompleted();
    };

    return TakeLastBufferObserver;
  }(AbstractObserver));

  /**
   *  Returns an array with the specified number of contiguous elements from the end of an observable sequence.
   *
   * @description
   *  This operator accumulates a buffer with a length enough to store count elements. Upon completion of the
   *  source sequence, this buffer is produced on the result sequence.
   * @param {Number} count Number of elements to take from the end of the source sequence.
   * @returns {Observable} An observable sequence containing a single array with the specified number of elements from the end of the source sequence.
   */
  observableProto.takeLastBuffer = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    var source = this;
    return new AnonymousObservable(function (o) {
      return source.subscribe(new TakeLastBufferObserver(o, count));
    }, source);
  };

  /**
   *  Projects each element of an observable sequence into zero or more windows which are produced based on element count information.
   * @param {Number} count Length of each window.
   * @param {Number} [skip] Number of elements to skip between creation of consecutive windows. If not specified, defaults to the count.
   * @returns {Observable} An observable sequence of windows.
   */
  observableProto.windowWithCount = observableProto.windowCount = function (count, skip) {
    var source = this;
    +count || (count = 0);
    Math.abs(count) === Infinity && (count = 0);
    if (count <= 0) { throw new ArgumentOutOfRangeError(); }
    skip == null && (skip = count);
    +skip || (skip = 0);
    Math.abs(skip) === Infinity && (skip = 0);

    if (skip <= 0) { throw new ArgumentOutOfRangeError(); }
    return new AnonymousObservable(function (observer) {
      var m = new SingleAssignmentDisposable(),
        refCountDisposable = new RefCountDisposable(m),
        n = 0,
        q = [];

      function createWindow () {
        var s = new Subject();
        q.push(s);
        observer.onNext(addRef(s, refCountDisposable));
      }

      createWindow();

      m.setDisposable(source.subscribe(
        function (x) {
          for (var i = 0, len = q.length; i < len; i++) { q[i].onNext(x); }
          var c = n - count + 1;
          c >= 0 && c % skip === 0 && q.shift().onCompleted();
          ++n % skip === 0 && createWindow();
        },
        function (e) {
          while (q.length > 0) { q.shift().onError(e); }
          observer.onError(e);
        },
        function () {
          while (q.length > 0) { q.shift().onCompleted(); }
          observer.onCompleted();
        }
      ));
      return refCountDisposable;
    }, source);
  };

  function concatMap(source, selector, thisArg) {
    var selectorFunc = bindCallback(selector, thisArg, 3);
    return source.map(function (x, i) {
      var result = selectorFunc(x, i, source);
      isPromise(result) && (result = observableFromPromise(result));
      (isArrayLike(result) || isIterable(result)) && (result = observableFrom(result));
      return result;
    }).concatAll();
  }

  /**
   *  One of the Following:
   *  Projects each element of an observable sequence to an observable sequence and merges the resulting observable sequences into one observable sequence.
   *
   * @example
   *  var res = source.concatMap(function (x) { return Rx.Observable.range(0, x); });
   *  Or:
   *  Projects each element of an observable sequence to an observable sequence, invokes the result selector for the source element and each of the corresponding inner sequence's elements, and merges the results into one observable sequence.
   *
   *  var res = source.concatMap(function (x) { return Rx.Observable.range(0, x); }, function (x, y) { return x + y; });
   *  Or:
   *  Projects each element of the source observable sequence to the other observable sequence and merges the resulting observable sequences into one observable sequence.
   *
   *  var res = source.concatMap(Rx.Observable.fromArray([1,2,3]));
   * @param {Function} selector A transform function to apply to each element or an observable sequence to project each element from the
   * source sequence onto which could be either an observable or Promise.
   * @param {Function} [resultSelector]  A transform function to apply to each element of the intermediate sequence.
   * @returns {Observable} An observable sequence whose elements are the result of invoking the one-to-many transform function collectionSelector on each element of the input sequence and then mapping each of those sequence elements and their corresponding source element to a result element.
   */
  observableProto.selectConcat = observableProto.concatMap = function (selector, resultSelector, thisArg) {
    if (isFunction(selector) && isFunction(resultSelector)) {
      return this.concatMap(function (x, i) {
        var selectorResult = selector(x, i);
        isPromise(selectorResult) && (selectorResult = observableFromPromise(selectorResult));
        (isArrayLike(selectorResult) || isIterable(selectorResult)) && (selectorResult = observableFrom(selectorResult));

        return selectorResult.map(function (y, i2) {
          return resultSelector(x, y, i, i2);
        });
      });
    }
    return isFunction(selector) ?
      concatMap(this, selector, thisArg) :
      concatMap(this, function () { return selector; });
  };

  /**
   * Projects each notification of an observable sequence to an observable sequence and concats the resulting observable sequences into one observable sequence.
   * @param {Function} onNext A transform function to apply to each element; the second parameter of the function represents the index of the source element.
   * @param {Function} onError A transform function to apply when an error occurs in the source sequence.
   * @param {Function} onCompleted A transform function to apply when the end of the source sequence is reached.
   * @param {Any} [thisArg] An optional "this" to use to invoke each transform.
   * @returns {Observable} An observable sequence whose elements are the result of invoking the one-to-many transform function corresponding to each notification in the input sequence.
   */
  observableProto.concatMapObserver = observableProto.selectConcatObserver = function(onNext, onError, onCompleted, thisArg) {
    var source = this,
        onNextFunc = bindCallback(onNext, thisArg, 2),
        onErrorFunc = bindCallback(onError, thisArg, 1),
        onCompletedFunc = bindCallback(onCompleted, thisArg, 0);
    return new AnonymousObservable(function (observer) {
      var index = 0;
      return source.subscribe(
        function (x) {
          var result;
          try {
            result = onNextFunc(x, index++);
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
        },
        function (err) {
          var result;
          try {
            result = onErrorFunc(err);
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
          observer.onCompleted();
        },
        function () {
          var result;
          try {
            result = onCompletedFunc();
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
          observer.onCompleted();
        });
    }, this).concatAll();
  };

  var DefaultIfEmptyObserver = (function (__super__) {
    inherits(DefaultIfEmptyObserver, __super__);
    function DefaultIfEmptyObserver(o, d) {
      this._o = o;
      this._d = d;
      this._f = false;
      __super__.call(this);
    }

    DefaultIfEmptyObserver.prototype.next = function (x) {
      this._f = true;
      this._o.onNext(x);
    };

    DefaultIfEmptyObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    DefaultIfEmptyObserver.prototype.completed = function () {
      !this._f && this._o.onNext(this._d);
      this._o.onCompleted();
    };

    return DefaultIfEmptyObserver;
  }(AbstractObserver));

  /**
   *  Returns the elements of the specified sequence or the specified value in a singleton sequence if the sequence is empty.
   *
   *  var res = obs = xs.defaultIfEmpty();
   *  2 - obs = xs.defaultIfEmpty(false);
   *
   * @memberOf Observable#
   * @param defaultValue The value to return if the sequence is empty. If not provided, this defaults to null.
   * @returns {Observable} An observable sequence that contains the specified default value if the source is empty; otherwise, the elements of the source itself.
   */
    observableProto.defaultIfEmpty = function (defaultValue) {
      var source = this;
      defaultValue === undefined && (defaultValue = null);
      return new AnonymousObservable(function (o) {
        return source.subscribe(new DefaultIfEmptyObserver(o, defaultValue));
      }, source);
    };

  // Swap out for Array.findIndex
  function arrayIndexOfComparer(array, item, comparer) {
    for (var i = 0, len = array.length; i < len; i++) {
      if (comparer(array[i], item)) { return i; }
    }
    return -1;
  }

  function HashSet(comparer) {
    this.comparer = comparer;
    this.set = [];
  }
  HashSet.prototype.push = function(value) {
    var retValue = arrayIndexOfComparer(this.set, value, this.comparer) === -1;
    retValue && this.set.push(value);
    return retValue;
  };

  var DistinctObservable = (function (__super__) {
    inherits(DistinctObservable, __super__);
    function DistinctObservable(source, keyFn, cmpFn) {
      this.source = source;
      this._keyFn = keyFn;
      this._cmpFn = cmpFn;
      __super__.call(this);
    }

    DistinctObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new DistinctObserver(o, this._keyFn, this._cmpFn));
    };

    return DistinctObservable;
  }(ObservableBase));

  var DistinctObserver = (function (__super__) {
    inherits(DistinctObserver, __super__);
    function DistinctObserver(o, keyFn, cmpFn) {
      this._o = o;
      this._keyFn = keyFn;
      this._h = new HashSet(cmpFn);
      __super__.call(this);
    }

    DistinctObserver.prototype.next = function (x) {
      var key = x;
      if (isFunction(this._keyFn)) {
        key = tryCatch(this._keyFn)(x);
        if (key === errorObj) { return this._o.onError(key.e); }
      }
      this._h.push(key) && this._o.onNext(x);
    };

    DistinctObserver.prototype.error = function (e) { this._o.onError(e); };
    DistinctObserver.prototype.completed = function () { this._o.onCompleted(); };

    return DistinctObserver;
  }(AbstractObserver));

  /**
   *  Returns an observable sequence that contains only distinct elements according to the keySelector and the comparer.
   *  Usage of this operator should be considered carefully due to the maintenance of an internal lookup structure which can grow large.
   *
   * @example
   *  var res = obs = xs.distinct();
   *  2 - obs = xs.distinct(function (x) { return x.id; });
   *  2 - obs = xs.distinct(function (x) { return x.id; }, function (a,b) { return a === b; });
   * @param {Function} [keySelector]  A function to compute the comparison key for each element.
   * @param {Function} [comparer]  Used to compare items in the collection.
   * @returns {Observable} An observable sequence only containing the distinct elements, based on a computed key value, from the source sequence.
   */
  observableProto.distinct = function (keySelector, comparer) {
    comparer || (comparer = defaultComparer);
    return new DistinctObservable(this, keySelector, comparer);
  };

  /**
   *  Groups the elements of an observable sequence according to a specified key selector function and comparer and selects the resulting elements by using a specified function.
   *
   * @example
   *  var res = observable.groupBy(function (x) { return x.id; });
   *  2 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; });
   *  3 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; }, function (x) { return x.toString(); });
   * @param {Function} keySelector A function to extract the key for each element.
   * @param {Function} [elementSelector]  A function to map each source element to an element in an observable group.
   * @returns {Observable} A sequence of observable groups, each of which corresponds to a unique key value, containing all elements that share that same key value.
   */
  observableProto.groupBy = function (keySelector, elementSelector) {
    return this.groupByUntil(keySelector, elementSelector, observableNever);
  };

    /**
     *  Groups the elements of an observable sequence according to a specified key selector function.
     *  A duration selector function is used to control the lifetime of groups. When a group expires, it receives an OnCompleted notification. When a new element with the same
     *  key value as a reclaimed group occurs, the group will be reborn with a new lifetime request.
     *
     * @example
     *  var res = observable.groupByUntil(function (x) { return x.id; }, null,  function () { return Rx.Observable.never(); });
     *  2 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; },  function () { return Rx.Observable.never(); });
     *  3 - observable.groupBy(function (x) { return x.id; }), function (x) { return x.name; },  function () { return Rx.Observable.never(); }, function (x) { return x.toString(); });
     * @param {Function} keySelector A function to extract the key for each element.
     * @param {Function} durationSelector A function to signal the expiration of a group.
     * @returns {Observable}
     *  A sequence of observable groups, each of which corresponds to a unique key value, containing all elements that share that same key value.
     *  If a group's lifetime expires, a new group with the same key value can be created once an element with such a key value is encoutered.
     *
     */
    observableProto.groupByUntil = function (keySelector, elementSelector, durationSelector) {
      var source = this;
      return new AnonymousObservable(function (o) {
        var map = new Map(),
          groupDisposable = new CompositeDisposable(),
          refCountDisposable = new RefCountDisposable(groupDisposable),
          handleError = function (e) { return function (item) { item.onError(e); }; };

        groupDisposable.add(
          source.subscribe(function (x) {
            var key = tryCatch(keySelector)(x);
            if (key === errorObj) {
              map.forEach(handleError(key.e));
              return o.onError(key.e);
            }

            var fireNewMapEntry = false, writer = map.get(key);
            if (writer === undefined) {
              writer = new Subject();
              map.set(key, writer);
              fireNewMapEntry = true;
            }

            if (fireNewMapEntry) {
              var group = new GroupedObservable(key, writer, refCountDisposable),
                durationGroup = new GroupedObservable(key, writer);
              var duration = tryCatch(durationSelector)(durationGroup);
              if (duration === errorObj) {
                map.forEach(handleError(duration.e));
                return o.onError(duration.e);
              }

              o.onNext(group);

              var md = new SingleAssignmentDisposable();
              groupDisposable.add(md);

              md.setDisposable(duration.take(1).subscribe(
                noop,
                function (e) {
                  map.forEach(handleError(e));
                  o.onError(e);
                },
                function () {
                  if (map['delete'](key)) { writer.onCompleted(); }
                  groupDisposable.remove(md);
                }));
            }

            var element = x;
            if (isFunction(elementSelector)) {
              element = tryCatch(elementSelector)(x);
              if (element === errorObj) {
                map.forEach(handleError(element.e));
                return o.onError(element.e);
              }
            }

            writer.onNext(element);
        }, function (e) {
          map.forEach(handleError(e));
          o.onError(e);
        }, function () {
          map.forEach(function (item) { item.onCompleted(); });
          o.onCompleted();
        }));

      return refCountDisposable;
    }, source);
  };

  var MapObservable = (function (__super__) {
    inherits(MapObservable, __super__);

    function MapObservable(source, selector, thisArg) {
      this.source = source;
      this.selector = bindCallback(selector, thisArg, 3);
      __super__.call(this);
    }

    function innerMap(selector, self) {
      return function (x, i, o) { return selector.call(this, self.selector(x, i, o), i, o); };
    }

    MapObservable.prototype.internalMap = function (selector, thisArg) {
      return new MapObservable(this.source, innerMap(selector, this), thisArg);
    };

    MapObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o, this.selector, this));
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(o, selector, source) {
      this.o = o;
      this.selector = selector;
      this.source = source;
      this.i = 0;
      AbstractObserver.call(this);
    }

    InnerObserver.prototype.next = function(x) {
      var result = tryCatch(this.selector)(x, this.i++, this.source);
      if (result === errorObj) { return this.o.onError(result.e); }
      this.o.onNext(result);
    };

    InnerObserver.prototype.error = function (e) {
      this.o.onError(e);
    };

    InnerObserver.prototype.completed = function () {
      this.o.onCompleted();
    };

    return MapObservable;

  }(ObservableBase));

  /**
  * Projects each element of an observable sequence into a new form by incorporating the element's index.
  * @param {Function} selector A transform function to apply to each source element; the second parameter of the function represents the index of the source element.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} An observable sequence whose elements are the result of invoking the transform function on each element of source.
  */
  observableProto.map = observableProto.select = function (selector, thisArg) {
    var selectorFn = typeof selector === 'function' ? selector : function () { return selector; };
    return this instanceof MapObservable ?
      this.internalMap(selectorFn, thisArg) :
      new MapObservable(this, selectorFn, thisArg);
  };

  function plucker(args, len) {
    return function mapper(x) {
      var currentProp = x;
      for (var i = 0; i < len; i++) {
        var p = currentProp[args[i]];
        if (typeof p !== 'undefined') {
          currentProp = p;
        } else {
          return undefined;
        }
      }
      return currentProp;
    };
  }

  /**
   * Retrieves the value of a specified nested property from all elements in
   * the Observable sequence.
   * @param {Arguments} arguments The nested properties to pluck.
   * @returns {Observable} Returns a new Observable sequence of property values.
   */
  observableProto.pluck = function () {
    var len = arguments.length, args = new Array(len);
    if (len === 0) { throw new Error('List of properties cannot be empty.'); }
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return this.map(plucker(args, len));
  };

observableProto.flatMap = observableProto.selectMany = observableProto.mergeMap = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).mergeAll();
};

  /**
   * Projects each notification of an observable sequence to an observable sequence and merges the resulting observable sequences into one observable sequence.
   * @param {Function} onNext A transform function to apply to each element; the second parameter of the function represents the index of the source element.
   * @param {Function} onError A transform function to apply when an error occurs in the source sequence.
   * @param {Function} onCompleted A transform function to apply when the end of the source sequence is reached.
   * @param {Any} [thisArg] An optional "this" to use to invoke each transform.
   * @returns {Observable} An observable sequence whose elements are the result of invoking the one-to-many transform function corresponding to each notification in the input sequence.
   */
  observableProto.flatMapObserver = observableProto.selectManyObserver = function (onNext, onError, onCompleted, thisArg) {
    var source = this;
    return new AnonymousObservable(function (observer) {
      var index = 0;

      return source.subscribe(
        function (x) {
          var result;
          try {
            result = onNext.call(thisArg, x, index++);
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
        },
        function (err) {
          var result;
          try {
            result = onError.call(thisArg, err);
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
          observer.onCompleted();
        },
        function () {
          var result;
          try {
            result = onCompleted.call(thisArg);
          } catch (e) {
            observer.onError(e);
            return;
          }
          isPromise(result) && (result = observableFromPromise(result));
          observer.onNext(result);
          observer.onCompleted();
        });
    }, source).mergeAll();
  };

observableProto.flatMapLatest = observableProto.switchMap = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).switchLatest();
};

  var SkipObservable = (function(__super__) {
    inherits(SkipObservable, __super__);
    function SkipObservable(source, count) {
      this.source = source;
      this._count = count;
      __super__.call(this);
    }

    SkipObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SkipObserver(o, this._count));
    };

    function SkipObserver(o, c) {
      this._o = o;
      this._r = c;
      AbstractObserver.call(this);
    }

    inherits(SkipObserver, AbstractObserver);

    SkipObserver.prototype.next = function (x) {
      if (this._r <= 0) {
        this._o.onNext(x);
      } else {
        this._r--;
      }
    };
    SkipObserver.prototype.error = function(e) { this._o.onError(e); };
    SkipObserver.prototype.completed = function() { this._o.onCompleted(); };

    return SkipObservable;
  }(ObservableBase));

  /**
   * Bypasses a specified number of elements in an observable sequence and then returns the remaining elements.
   * @param {Number} count The number of elements to skip before returning the remaining elements.
   * @returns {Observable} An observable sequence that contains the elements that occur after the specified index in the input sequence.
   */
  observableProto.skip = function (count) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    return new SkipObservable(this, count);
  };

  var SkipWhileObservable = (function (__super__) {
    inherits(SkipWhileObservable, __super__);
    function SkipWhileObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    SkipWhileObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SkipWhileObserver(o, this));
    };

    return SkipWhileObservable;
  }(ObservableBase));

  var SkipWhileObserver = (function (__super__) {
    inherits(SkipWhileObserver, __super__);

    function SkipWhileObserver(o, p) {
      this._o = o;
      this._p = p;
      this._i = 0;
      this._r = false;
      __super__.call(this);
    }

    SkipWhileObserver.prototype.next = function (x) {
      if (!this._r) {
        var res = tryCatch(this._p._fn)(x, this._i++, this._p);
        if (res === errorObj) { return this._o.onError(res.e); }
        this._r = !res;
      }
      this._r && this._o.onNext(x);
    };
    SkipWhileObserver.prototype.error = function (e) { this._o.onError(e); };
    SkipWhileObserver.prototype.completed = function () { this._o.onCompleted(); };

    return SkipWhileObserver;
  }(AbstractObserver));

  /**
   *  Bypasses elements in an observable sequence as long as a specified condition is true and then returns the remaining elements.
   *  The element's index is used in the logic of the predicate function.
   *
   *  var res = source.skipWhile(function (value) { return value < 10; });
   *  var res = source.skipWhile(function (value, index) { return value < 10 || index < 10; });
   * @param {Function} predicate A function to test each element for a condition; the second parameter of the function represents the index of the source element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence that contains the elements from the input sequence starting at the first element in the linear series that does not pass the test specified by predicate.
   */
  observableProto.skipWhile = function (predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return new SkipWhileObservable(this, fn);
  };

  var TakeObservable = (function(__super__) {
    inherits(TakeObservable, __super__);
    function TakeObservable(source, count) {
      this.source = source;
      this._count = count;
      __super__.call(this);
    }

    TakeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new TakeObserver(o, this._count));
    };

    function TakeObserver(o, c) {
      this._o = o;
      this._c = c;
      this._r = c;
      AbstractObserver.call(this);
    }

    inherits(TakeObserver, AbstractObserver);

    TakeObserver.prototype.next = function (x) {
      if (this._r-- > 0) {
        this._o.onNext(x);
        this._r <= 0 && this._o.onCompleted();
      }
    };

    TakeObserver.prototype.error = function (e) { this._o.onError(e); };
    TakeObserver.prototype.completed = function () { this._o.onCompleted(); };

    return TakeObservable;
  }(ObservableBase));

  /**
   *  Returns a specified number of contiguous elements from the start of an observable sequence, using the specified scheduler for the edge case of take(0).
   * @param {Number} count The number of elements to return.
   * @param {Scheduler} [scheduler] Scheduler used to produce an OnCompleted message in case <paramref name="count count</paramref> is set to 0.
   * @returns {Observable} An observable sequence that contains the specified number of elements from the start of the input sequence.
   */
  observableProto.take = function (count, scheduler) {
    if (count < 0) { throw new ArgumentOutOfRangeError(); }
    if (count === 0) { return observableEmpty(scheduler); }
    return new TakeObservable(this, count);
  };

  var TakeWhileObservable = (function (__super__) {
    inherits(TakeWhileObservable, __super__);
    function TakeWhileObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    TakeWhileObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new TakeWhileObserver(o, this));
    };

    return TakeWhileObservable;
  }(ObservableBase));

  var TakeWhileObserver = (function (__super__) {
    inherits(TakeWhileObserver, __super__);

    function TakeWhileObserver(o, p) {
      this._o = o;
      this._p = p;
      this._i = 0;
      this._r = true;
      __super__.call(this);
    }

    TakeWhileObserver.prototype.next = function (x) {
      if (this._r) {
        this._r = tryCatch(this._p._fn)(x, this._i++, this._p);
        if (this._r === errorObj) { return this._o.onError(this._r.e); }
      }
      if (this._r) {
        this._o.onNext(x);
      } else {
        this._o.onCompleted();
      }
    };
    TakeWhileObserver.prototype.error = function (e) { this._o.onError(e); };
    TakeWhileObserver.prototype.completed = function () { this._o.onCompleted(); };

    return TakeWhileObserver;
  }(AbstractObserver));

  /**
   *  Returns elements from an observable sequence as long as a specified condition is true.
   *  The element's index is used in the logic of the predicate function.
   * @param {Function} predicate A function to test each element for a condition; the second parameter of the function represents the index of the source element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence that contains the elements from the input sequence that occur before the element at which the test no longer passes.
   */
  observableProto.takeWhile = function (predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return new TakeWhileObservable(this, fn);
  };

  var FilterObservable = (function (__super__) {
    inherits(FilterObservable, __super__);

    function FilterObservable(source, predicate, thisArg) {
      this.source = source;
      this.predicate = bindCallback(predicate, thisArg, 3);
      __super__.call(this);
    }

    FilterObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new InnerObserver(o, this.predicate, this));
    };

    function innerPredicate(predicate, self) {
      return function(x, i, o) { return self.predicate(x, i, o) && predicate.call(this, x, i, o); }
    }

    FilterObservable.prototype.internalFilter = function(predicate, thisArg) {
      return new FilterObservable(this.source, innerPredicate(predicate, this), thisArg);
    };

    inherits(InnerObserver, AbstractObserver);
    function InnerObserver(o, predicate, source) {
      this.o = o;
      this.predicate = predicate;
      this.source = source;
      this.i = 0;
      AbstractObserver.call(this);
    }

    InnerObserver.prototype.next = function(x) {
      var shouldYield = tryCatch(this.predicate)(x, this.i++, this.source);
      if (shouldYield === errorObj) {
        return this.o.onError(shouldYield.e);
      }
      shouldYield && this.o.onNext(x);
    };

    InnerObserver.prototype.error = function (e) {
      this.o.onError(e);
    };

    InnerObserver.prototype.completed = function () {
      this.o.onCompleted();
    };

    return FilterObservable;

  }(ObservableBase));

  /**
  *  Filters the elements of an observable sequence based on a predicate by incorporating the element's index.
  * @param {Function} predicate A function to test each source element for a condition; the second parameter of the function represents the index of the source element.
  * @param {Any} [thisArg] Object to use as this when executing callback.
  * @returns {Observable} An observable sequence that contains elements from the input sequence that satisfy the condition.
  */
  observableProto.filter = observableProto.where = function (predicate, thisArg) {
    return this instanceof FilterObservable ? this.internalFilter(predicate, thisArg) :
      new FilterObservable(this, predicate, thisArg);
  };

  var ExtremaByObservable = (function (__super__) {
    inherits(ExtremaByObservable, __super__);
    function ExtremaByObservable(source, k, c) {
      this.source = source;
      this._k = k;
      this._c = c;
      __super__.call(this);
    }

    ExtremaByObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new ExtremaByObserver(o, this._k, this._c));
    };

    return ExtremaByObservable;
  }(ObservableBase));

  var ExtremaByObserver = (function (__super__) {
    inherits(ExtremaByObserver, __super__);
    function ExtremaByObserver(o, k, c) {
      this._o = o;
      this._k = k;
      this._c = c;
      this._v = null;
      this._hv = false;
      this._l = [];
      __super__.call(this);
    }

    ExtremaByObserver.prototype.next = function (x) {
      var key = tryCatch(this._k)(x);
      if (key === errorObj) { return this._o.onError(key.e); }
      var comparison = 0;
      if (!this._hv) {
        this._hv = true;
        this._v = key;
      } else {
        comparison = tryCatch(this._c)(key, this._v);
        if (comparison === errorObj) { return this._o.onError(comparison.e); }
      }
      if (comparison > 0) {
        this._v = key;
        this._l = [];
      }
      if (comparison >= 0) { this._l.push(x); }
    };

    ExtremaByObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ExtremaByObserver.prototype.completed = function () {
      this._o.onNext(this._l);
      this._o.onCompleted();
    };

    return ExtremaByObserver;
  }(AbstractObserver));

  function firstOnly(x) {
    if (x.length === 0) { throw new EmptyError(); }
    return x[0];
  }

  var ReduceObservable = (function(__super__) {
    inherits(ReduceObservable, __super__);
    function ReduceObservable(source, accumulator, hasSeed, seed) {
      this.source = source;
      this.accumulator = accumulator;
      this.hasSeed = hasSeed;
      this.seed = seed;
      __super__.call(this);
    }

    ReduceObservable.prototype.subscribeCore = function(observer) {
      return this.source.subscribe(new ReduceObserver(observer,this));
    };

    return ReduceObservable;
  }(ObservableBase));

  var ReduceObserver = (function (__super__) {
    inherits(ReduceObserver, __super__);
    function ReduceObserver(o, parent) {
      this._o = o;
      this._p = parent;
      this._fn = parent.accumulator;
      this._hs = parent.hasSeed;
      this._s = parent.seed;
      this._ha = false;
      this._a = null;
      this._hv = false;
      this._i = 0;
      __super__.call(this);
    }

    ReduceObserver.prototype.next = function (x) {
      !this._hv && (this._hv = true);
      if (this._ha) {
        this._a = tryCatch(this._fn)(this._a, x, this._i, this._p);
      } else {
        this._a = this._hs ? tryCatch(this._fn)(this._s, x, this._i, this._p) : x;
        this._ha = true;
      }
      if (this._a === errorObj) { return this._o.onError(this._a.e); }
      this._i++;
    };

    ReduceObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ReduceObserver.prototype.completed = function () {
      this._hv && this._o.onNext(this._a);
      !this._hv && this._hs && this._o.onNext(this._s);
      !this._hv && !this._hs && this._o.onError(new EmptyError());
      this._o.onCompleted();
    };

    return ReduceObserver;
  }(AbstractObserver));

  /**
  * Applies an accumulator function over an observable sequence, returning the result of the aggregation as a single element in the result sequence. The specified seed value is used as the initial accumulator value.
  * For aggregation behavior with incremental intermediate results, see Observable.scan.
  * @param {Function} accumulator An accumulator function to be invoked on each element.
  * @param {Any} [seed] The initial accumulator value.
  * @returns {Observable} An observable sequence containing a single element with the final accumulator value.
  */
  observableProto.reduce = function () {
    var hasSeed = false, seed, accumulator = arguments[0];
    if (arguments.length === 2) {
      hasSeed = true;
      seed = arguments[1];
    }
    return new ReduceObservable(this, accumulator, hasSeed, seed);
  };

  var SomeObservable = (function (__super__) {
    inherits(SomeObservable, __super__);
    function SomeObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    SomeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SomeObserver(o, this._fn, this.source));
    };

    return SomeObservable;
  }(ObservableBase));

  var SomeObserver = (function (__super__) {
    inherits(SomeObserver, __super__);

    function SomeObserver(o, fn, s) {
      this._o = o;
      this._fn = fn;
      this._s = s;
      this._i = 0;
      __super__.call(this);
    }

    SomeObserver.prototype.next = function (x) {
      var result = tryCatch(this._fn)(x, this._i++, this._s);
      if (result === errorObj) { return this._o.onError(result.e); }
      if (Boolean(result)) {
        this._o.onNext(true);
        this._o.onCompleted();
      }
    };
    SomeObserver.prototype.error = function (e) { this._o.onError(e); };
    SomeObserver.prototype.completed = function () {
      this._o.onNext(false);
      this._o.onCompleted();
    };

    return SomeObserver;
  }(AbstractObserver));

  /**
   * Determines whether any element of an observable sequence satisfies a condition if present, else if any items are in the sequence.
   * @param {Function} [predicate] A function to test each element for a condition.
   * @returns {Observable} An observable sequence containing a single element determining whether any elements in the source sequence pass the test in the specified predicate if given, else if any items are in the sequence.
   */
  observableProto.some = function (predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return new SomeObservable(this, fn);
  };

  var IsEmptyObservable = (function (__super__) {
    inherits(IsEmptyObservable, __super__);
    function IsEmptyObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    IsEmptyObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new IsEmptyObserver(o));
    };

    return IsEmptyObservable;
  }(ObservableBase));

  var IsEmptyObserver = (function(__super__) {
    inherits(IsEmptyObserver, __super__);
    function IsEmptyObserver(o) {
      this._o = o;
      __super__.call(this);
    }

    IsEmptyObserver.prototype.next = function () {
      this._o.onNext(false);
      this._o.onCompleted();
    };
    IsEmptyObserver.prototype.error = function (e) { this._o.onError(e); };
    IsEmptyObserver.prototype.completed = function () {
      this._o.onNext(true);
      this._o.onCompleted();
    };

    return IsEmptyObserver;
  }(AbstractObserver));

  /**
   * Determines whether an observable sequence is empty.
   * @returns {Observable} An observable sequence containing a single element determining whether the source sequence is empty.
   */
  observableProto.isEmpty = function () {
    return new IsEmptyObservable(this);
  };

  var EveryObservable = (function (__super__) {
    inherits(EveryObservable, __super__);
    function EveryObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    EveryObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new EveryObserver(o, this._fn, this.source));
    };

    return EveryObservable;
  }(ObservableBase));

  var EveryObserver = (function (__super__) {
    inherits(EveryObserver, __super__);

    function EveryObserver(o, fn, s) {
      this._o = o;
      this._fn = fn;
      this._s = s;
      this._i = 0;
      __super__.call(this);
    }

    EveryObserver.prototype.next = function (x) {
      var result = tryCatch(this._fn)(x, this._i++, this._s);
      if (result === errorObj) { return this._o.onError(result.e); }
      if (!Boolean(result)) {
        this._o.onNext(false);
        this._o.onCompleted();
      }
    };
    EveryObserver.prototype.error = function (e) { this._o.onError(e); };
    EveryObserver.prototype.completed = function () {
      this._o.onNext(true);
      this._o.onCompleted();
    };

    return EveryObserver;
  }(AbstractObserver));

  /**
   * Determines whether all elements of an observable sequence satisfy a condition.
   * @param {Function} [predicate] A function to test each element for a condition.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence containing a single element determining whether all elements in the source sequence pass the test in the specified predicate.
   */
  observableProto.every = function (predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return new EveryObservable(this, fn);
  };

  var IncludesObservable = (function (__super__) {
    inherits(IncludesObservable, __super__);
    function IncludesObservable(source, elem, idx) {
      var n = +idx || 0;
      Math.abs(n) === Infinity && (n = 0);

      this.source = source;
      this._elem = elem;
      this._n = n;
      __super__.call(this);
    }

    IncludesObservable.prototype.subscribeCore = function (o) {
      if (this._n < 0) {
        o.onNext(false);
        o.onCompleted();
        return disposableEmpty;
      }

      return this.source.subscribe(new IncludesObserver(o, this._elem, this._n));
    };

    return IncludesObservable;
  }(ObservableBase));

  var IncludesObserver = (function (__super__) {
    inherits(IncludesObserver, __super__);
    function IncludesObserver(o, elem, n) {
      this._o = o;
      this._elem = elem;
      this._n = n;
      this._i = 0;
      __super__.call(this);
    }

    function comparer(a, b) {
      return (a === 0 && b === 0) || (a === b || (isNaN(a) && isNaN(b)));
    }

    IncludesObserver.prototype.next = function (x) {
      if (this._i++ >= this._n && comparer(x, this._elem)) {
        this._o.onNext(true);
        this._o.onCompleted();
      }
    };
    IncludesObserver.prototype.error = function (e) { this._o.onError(e); };
    IncludesObserver.prototype.completed = function () { this._o.onNext(false); this._o.onCompleted(); };

    return IncludesObserver;
  }(AbstractObserver));

  /**
   * Determines whether an observable sequence includes a specified element with an optional equality comparer.
   * @param searchElement The value to locate in the source sequence.
   * @param {Number} [fromIndex] An equality comparer to compare elements.
   * @returns {Observable} An observable sequence containing a single element determining whether the source sequence includes an element that has the specified value from the given index.
   */
  observableProto.includes = function (searchElement, fromIndex) {
    return new IncludesObservable(this, searchElement, fromIndex);
  };

  var CountObservable = (function (__super__) {
    inherits(CountObservable, __super__);
    function CountObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    CountObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new CountObserver(o, this._fn, this.source));
    };

    return CountObservable;
  }(ObservableBase));

  var CountObserver = (function (__super__) {
    inherits(CountObserver, __super__);

    function CountObserver(o, fn, s) {
      this._o = o;
      this._fn = fn;
      this._s = s;
      this._i = 0;
      this._c = 0;
      __super__.call(this);
    }

    CountObserver.prototype.next = function (x) {
      if (this._fn) {
        var result = tryCatch(this._fn)(x, this._i++, this._s);
        if (result === errorObj) { return this._o.onError(result.e); }
        Boolean(result) && (this._c++);
      } else {
        this._c++;
      }
    };
    CountObserver.prototype.error = function (e) { this._o.onError(e); };
    CountObserver.prototype.completed = function () {
      this._o.onNext(this._c);
      this._o.onCompleted();
    };

    return CountObserver;
  }(AbstractObserver));

  /**
   * Returns an observable sequence containing a value that represents how many elements in the specified observable sequence satisfy a condition if provided, else the count of items.
   * @example
   * res = source.count();
   * res = source.count(function (x) { return x > 3; });
   * @param {Function} [predicate]A function to test each element for a condition.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence containing a single element with a number that represents how many elements in the input sequence satisfy the condition in the predicate function if provided, else the count of items in the sequence.
   */
  observableProto.count = function (predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return new CountObservable(this, fn);
  };

  var IndexOfObservable = (function (__super__) {
    inherits(IndexOfObservable, __super__);
    function IndexOfObservable(source, e, n) {
      this.source = source;
      this._e = e;
      this._n = n;
      __super__.call(this);
    }

    IndexOfObservable.prototype.subscribeCore = function (o) {
      if (this._n < 0) {
        o.onNext(-1);
        o.onCompleted();
        return disposableEmpty;
      }

      return this.source.subscribe(new IndexOfObserver(o, this._e, this._n));
    };

    return IndexOfObservable;
  }(ObservableBase));

  var IndexOfObserver = (function (__super__) {
    inherits(IndexOfObserver, __super__);
    function IndexOfObserver(o, e, n) {
      this._o = o;
      this._e = e;
      this._n = n;
      this._i = 0;
      __super__.call(this);
    }

    IndexOfObserver.prototype.next = function (x) {
      if (this._i >= this._n && x === this._e) {
        this._o.onNext(this._i);
        this._o.onCompleted();
      }
      this._i++;
    };
    IndexOfObserver.prototype.error = function (e) { this._o.onError(e); };
    IndexOfObserver.prototype.completed = function () { this._o.onNext(-1); this._o.onCompleted(); };

    return IndexOfObserver;
  }(AbstractObserver));

  /**
   * Returns the first index at which a given element can be found in the observable sequence, or -1 if it is not present.
   * @param {Any} searchElement Element to locate in the array.
   * @param {Number} [fromIndex] The index to start the search.  If not specified, defaults to 0.
   * @returns {Observable} And observable sequence containing the first index at which a given element can be found in the observable sequence, or -1 if it is not present.
   */
  observableProto.indexOf = function(searchElement, fromIndex) {
    var n = +fromIndex || 0;
    Math.abs(n) === Infinity && (n = 0);
    return new IndexOfObservable(this, searchElement, n);
  };

  var SumObservable = (function (__super__) {
    inherits(SumObservable, __super__);
    function SumObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    SumObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SumObserver(o, this._fn, this.source));
    };

    return SumObservable;
  }(ObservableBase));

  var SumObserver = (function (__super__) {
    inherits(SumObserver, __super__);

    function SumObserver(o, fn, s) {
      this._o = o;
      this._fn = fn;
      this._s = s;
      this._i = 0;
      this._c = 0;
      __super__.call(this);
    }

    SumObserver.prototype.next = function (x) {
      if (this._fn) {
        var result = tryCatch(this._fn)(x, this._i++, this._s);
        if (result === errorObj) { return this._o.onError(result.e); }
        this._c += result;
      } else {
        this._c += x;
      }
    };
    SumObserver.prototype.error = function (e) { this._o.onError(e); };
    SumObserver.prototype.completed = function () {
      this._o.onNext(this._c);
      this._o.onCompleted();
    };

    return SumObserver;
  }(AbstractObserver));

  /**
   * Computes the sum of a sequence of values that are obtained by invoking an optional transform function on each element of the input sequence, else if not specified computes the sum on each item in the sequence.
   * @param {Function} [selector] A transform function to apply to each element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence containing a single element with the sum of the values in the source sequence.
   */
  observableProto.sum = function (keySelector, thisArg) {
    var fn = bindCallback(keySelector, thisArg, 3);
    return new SumObservable(this, fn);
  };

  /**
   * Returns the elements in an observable sequence with the minimum key value according to the specified comparer.
   * @example
   * var res = source.minBy(function (x) { return x.value; });
   * var res = source.minBy(function (x) { return x.value; }, function (x, y) { return x - y; });
   * @param {Function} keySelector Key selector function.
   * @param {Function} [comparer] Comparer used to compare key values.
   * @returns {Observable} An observable sequence containing a list of zero or more elements that have a minimum key value.
   */
  observableProto.minBy = function (keySelector, comparer) {
    comparer || (comparer = defaultSubComparer);
    return new ExtremaByObservable(this, keySelector, function (x, y) { return comparer(x, y) * -1; });
  };

  /**
   * Returns the minimum element in an observable sequence according to the optional comparer else a default greater than less than check.
   * @example
   * var res = source.min();
   * var res = source.min(function (x, y) { return x.value - y.value; });
   * @param {Function} [comparer] Comparer used to compare elements.
   * @returns {Observable} An observable sequence containing a single element with the minimum element in the source sequence.
   */
  observableProto.min = function (comparer) {
    return this.minBy(identity, comparer).map(firstOnly);
  };

  /**
   * Returns the elements in an observable sequence with the maximum  key value according to the specified comparer.
   * @example
   * var res = source.maxBy(function (x) { return x.value; });
   * var res = source.maxBy(function (x) { return x.value; }, function (x, y) { return x - y;; });
   * @param {Function} keySelector Key selector function.
   * @param {Function} [comparer]  Comparer used to compare key values.
   * @returns {Observable} An observable sequence containing a list of zero or more elements that have a maximum key value.
   */
  observableProto.maxBy = function (keySelector, comparer) {
    comparer || (comparer = defaultSubComparer);
    return new ExtremaByObservable(this, keySelector, comparer);
  };

  /**
   * Returns the maximum value in an observable sequence according to the specified comparer.
   * @example
   * var res = source.max();
   * var res = source.max(function (x, y) { return x.value - y.value; });
   * @param {Function} [comparer] Comparer used to compare elements.
   * @returns {Observable} An observable sequence containing a single element with the maximum element in the source sequence.
   */
  observableProto.max = function (comparer) {
    return this.maxBy(identity, comparer).map(firstOnly);
  };

  var AverageObservable = (function (__super__) {
    inherits(AverageObservable, __super__);
    function AverageObservable(source, fn) {
      this.source = source;
      this._fn = fn;
      __super__.call(this);
    }

    AverageObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new AverageObserver(o, this._fn, this.source));
    };

    return AverageObservable;
  }(ObservableBase));

  var AverageObserver = (function(__super__) {
    inherits(AverageObserver, __super__);
    function AverageObserver(o, fn, s) {
      this._o = o;
      this._fn = fn;
      this._s = s;
      this._c = 0;
      this._t = 0;
      __super__.call(this);
    }

    AverageObserver.prototype.next = function (x) {
      if(this._fn) {
        var r = tryCatch(this._fn)(x, this._c++, this._s);
        if (r === errorObj) { return this._o.onError(r.e); }
        this._t += r;
      } else {
        this._c++;
        this._t += x;
      }
    };
    AverageObserver.prototype.error = function (e) { this._o.onError(e); };
    AverageObserver.prototype.completed = function () {
      if (this._c === 0) { return this._o.onError(new EmptyError()); }
      this._o.onNext(this._t / this._c);
      this._o.onCompleted();
    };

    return AverageObserver;
  }(AbstractObserver));

  /**
   * Computes the average of an observable sequence of values that are in the sequence or obtained by invoking a transform function on each element of the input sequence if present.
   * @param {Function} [selector] A transform function to apply to each element.
   * @param {Any} [thisArg] Object to use as this when executing callback.
   * @returns {Observable} An observable sequence containing a single element with the average of the sequence of values.
   */
  observableProto.average = function (keySelector, thisArg) {
    var source = this, fn;
    if (isFunction(keySelector)) {
      fn = bindCallback(keySelector, thisArg, 3);
    }
    return new AverageObservable(source, fn);
  };

  /**
   *  Determines whether two sequences are equal by comparing the elements pairwise using a specified equality comparer.
   *
   * @example
   * var res = res = source.sequenceEqual([1,2,3]);
   * var res = res = source.sequenceEqual([{ value: 42 }], function (x, y) { return x.value === y.value; });
   * 3 - res = source.sequenceEqual(Rx.Observable.returnValue(42));
   * 4 - res = source.sequenceEqual(Rx.Observable.returnValue({ value: 42 }), function (x, y) { return x.value === y.value; });
   * @param {Observable} second Second observable sequence or array to compare.
   * @param {Function} [comparer] Comparer used to compare elements of both sequences.
   * @returns {Observable} An observable sequence that contains a single element which indicates whether both sequences are of equal length and their corresponding elements are equal according to the specified equality comparer.
   */
  observableProto.sequenceEqual = function (second, comparer) {
    var first = this;
    comparer || (comparer = defaultComparer);
    return new AnonymousObservable(function (o) {
      var donel = false, doner = false, ql = [], qr = [];
      var subscription1 = first.subscribe(function (x) {
        if (qr.length > 0) {
          var v = qr.shift();
          var equal = tryCatch(comparer)(v, x);
          if (equal === errorObj) { return o.onError(equal.e); }
          if (!equal) {
            o.onNext(false);
            o.onCompleted();
          }
        } else if (doner) {
          o.onNext(false);
          o.onCompleted();
        } else {
          ql.push(x);
        }
      }, function(e) { o.onError(e); }, function () {
        donel = true;
        if (ql.length === 0) {
          if (qr.length > 0) {
            o.onNext(false);
            o.onCompleted();
          } else if (doner) {
            o.onNext(true);
            o.onCompleted();
          }
        }
      });

      (isArrayLike(second) || isIterable(second)) && (second = observableFrom(second));
      isPromise(second) && (second = observableFromPromise(second));
      var subscription2 = second.subscribe(function (x) {
        if (ql.length > 0) {
          var v = ql.shift();
          var equal = tryCatch(comparer)(v, x);
          if (equal === errorObj) { return o.onError(equal.e); }
          if (!equal) {
            o.onNext(false);
            o.onCompleted();
          }
        } else if (donel) {
          o.onNext(false);
          o.onCompleted();
        } else {
          qr.push(x);
        }
      }, function(e) { o.onError(e); }, function () {
        doner = true;
        if (qr.length === 0) {
          if (ql.length > 0) {
            o.onNext(false);
            o.onCompleted();
          } else if (donel) {
            o.onNext(true);
            o.onCompleted();
          }
        }
      });
      return new BinaryDisposable(subscription1, subscription2);
    }, first);
  };

  var ElementAtObservable = (function (__super__) {
    inherits(ElementAtObservable, __super__);
    function ElementAtObservable(source, i, d) {
      this.source = source;
      this._i = i;
      this._d = d;
      __super__.call(this);
    }

    ElementAtObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new ElementAtObserver(o, this._i, this._d));
    };

    return ElementAtObservable;
  }(ObservableBase));

  var ElementAtObserver = (function (__super__) {
    inherits(ElementAtObserver, __super__);

    function ElementAtObserver(o, i, d) {
      this._o = o;
      this._i = i;
      this._d = d;
      __super__.call(this);
    }

    ElementAtObserver.prototype.next = function (x) {
      if (this._i-- === 0) {
        this._o.onNext(x);
        this._o.onCompleted();
      }
    };
    ElementAtObserver.prototype.error = function (e) { this._o.onError(e); };
    ElementAtObserver.prototype.completed = function () {
      if (this._d === undefined) {
        this._o.onError(new ArgumentOutOfRangeError());
      } else {
        this._o.onNext(this._d);
        this._o.onCompleted();
      }
    };

    return ElementAtObserver;
  }(AbstractObserver));

  /**
   * Returns the element at a specified index in a sequence or default value if not found.
   * @param {Number} index The zero-based index of the element to retrieve.
   * @param {Any} [defaultValue] The default value to use if elementAt does not find a value.
   * @returns {Observable} An observable sequence that produces the element at the specified position in the source sequence.
   */
  observableProto.elementAt =  function (index, defaultValue) {
    if (index < 0) { throw new ArgumentOutOfRangeError(); }
    return new ElementAtObservable(this, index, defaultValue);
  };

  var SingleObserver = (function(__super__) {
    inherits(SingleObserver, __super__);
    function SingleObserver(o, obj, s) {
      this._o = o;
      this._obj = obj;
      this._s = s;
      this._i = 0;
      this._hv = false;
      this._v = null;
      __super__.call(this);
    }

    SingleObserver.prototype.next = function (x) {
      var shouldYield = false;
      if (this._obj.predicate) {
        var res = tryCatch(this._obj.predicate)(x, this._i++, this._s);
        if (res === errorObj) { return this._o.onError(res.e); }
        Boolean(res) && (shouldYield = true);
      } else if (!this._obj.predicate) {
        shouldYield = true;
      }
      if (shouldYield) {
        if (this._hv) {
          return this._o.onError(new Error('Sequence contains more than one matching element'));
        }
        this._hv = true;
        this._v = x;
      }
    };
    SingleObserver.prototype.error = function (e) { this._o.onError(e); };
    SingleObserver.prototype.completed = function () {
      if (this._hv) {
        this._o.onNext(this._v);
        this._o.onCompleted();
      }
      else if (this._obj.defaultValue === undefined) {
        this._o.onError(new EmptyError());
      } else {
        this._o.onNext(this._obj.defaultValue);
        this._o.onCompleted();
      }
    };

    return SingleObserver;
  }(AbstractObserver));


    /**
     * Returns the only element of an observable sequence that satisfies the condition in the optional predicate, and reports an exception if there is not exactly one element in the observable sequence.
     * @returns {Observable} Sequence containing the single element in the observable sequence that satisfies the condition in the predicate.
     */
    observableProto.single = function (predicate, thisArg) {
      var obj = {}, source = this;
      if (typeof arguments[0] === 'object') {
        obj = arguments[0];
      } else {
        obj = {
          predicate: arguments[0],
          thisArg: arguments[1],
          defaultValue: arguments[2]
        };
      }
      if (isFunction (obj.predicate)) {
        var fn = obj.predicate;
        obj.predicate = bindCallback(fn, obj.thisArg, 3);
      }
      return new AnonymousObservable(function (o) {
        return source.subscribe(new SingleObserver(o, obj, source));
      }, source);
    };

  var FirstObservable = (function (__super__) {
    inherits(FirstObservable, __super__);
    function FirstObservable(source, obj) {
      this.source = source;
      this._obj = obj;
      __super__.call(this);
    }

    FirstObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new FirstObserver(o, this._obj, this.source));
    };

    return FirstObservable;
  }(ObservableBase));

  var FirstObserver = (function(__super__) {
    inherits(FirstObserver, __super__);
    function FirstObserver(o, obj, s) {
      this._o = o;
      this._obj = obj;
      this._s = s;
      this._i = 0;
      __super__.call(this);
    }

    FirstObserver.prototype.next = function (x) {
      if (this._obj.predicate) {
        var res = tryCatch(this._obj.predicate)(x, this._i++, this._s);
        if (res === errorObj) { return this._o.onError(res.e); }
        if (Boolean(res)) {
          this._o.onNext(x);
          this._o.onCompleted();
        }
      } else if (!this._obj.predicate) {
        this._o.onNext(x);
        this._o.onCompleted();
      }
    };
    FirstObserver.prototype.error = function (e) { this._o.onError(e); };
    FirstObserver.prototype.completed = function () {
      if (this._obj.defaultValue === undefined) {
        this._o.onError(new EmptyError());
      } else {
        this._o.onNext(this._obj.defaultValue);
        this._o.onCompleted();
      }
    };

    return FirstObserver;
  }(AbstractObserver));

  /**
   * Returns the first element of an observable sequence that satisfies the condition in the predicate if present else the first item in the sequence.
   * @returns {Observable} Sequence containing the first element in the observable sequence that satisfies the condition in the predicate if provided, else the first item in the sequence.
   */
  observableProto.first = function () {
    var obj = {}, source = this;
    if (typeof arguments[0] === 'object') {
      obj = arguments[0];
    } else {
      obj = {
        predicate: arguments[0],
        thisArg: arguments[1],
        defaultValue: arguments[2]
      };
    }
    if (isFunction (obj.predicate)) {
      var fn = obj.predicate;
      obj.predicate = bindCallback(fn, obj.thisArg, 3);
    }
    return new FirstObservable(this, obj);
  };

  var LastObservable = (function (__super__) {
    inherits(LastObservable, __super__);
    function LastObservable(source, obj) {
      this.source = source;
      this._obj = obj;
      __super__.call(this);
    }

    LastObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new LastObserver(o, this._obj, this.source));
    };

    return LastObservable;
  }(ObservableBase));

  var LastObserver = (function(__super__) {
    inherits(LastObserver, __super__);
    function LastObserver(o, obj, s) {
      this._o = o;
      this._obj = obj;
      this._s = s;
      this._i = 0;
      this._hv = false;
      this._v = null;
      __super__.call(this);
    }

    LastObserver.prototype.next = function (x) {
      var shouldYield = false;
      if (this._obj.predicate) {
        var res = tryCatch(this._obj.predicate)(x, this._i++, this._s);
        if (res === errorObj) { return this._o.onError(res.e); }
        Boolean(res) && (shouldYield = true);
      } else if (!this._obj.predicate) {
        shouldYield = true;
      }
      if (shouldYield) {
        this._hv = true;
        this._v = x;
      }
    };
    LastObserver.prototype.error = function (e) { this._o.onError(e); };
    LastObserver.prototype.completed = function () {
      if (this._hv) {
        this._o.onNext(this._v);
        this._o.onCompleted();
      }
      else if (this._obj.defaultValue === undefined) {
        this._o.onError(new EmptyError());
      } else {
        this._o.onNext(this._obj.defaultValue);
        this._o.onCompleted();
      }
    };

    return LastObserver;
  }(AbstractObserver));

  /**
   * Returns the last element of an observable sequence that satisfies the condition in the predicate if specified, else the last element.
   * @returns {Observable} Sequence containing the last element in the observable sequence that satisfies the condition in the predicate.
   */
  observableProto.last = function () {
    var obj = {}, source = this;
    if (typeof arguments[0] === 'object') {
      obj = arguments[0];
    } else {
      obj = {
        predicate: arguments[0],
        thisArg: arguments[1],
        defaultValue: arguments[2]
      };
    }
    if (isFunction (obj.predicate)) {
      var fn = obj.predicate;
      obj.predicate = bindCallback(fn, obj.thisArg, 3);
    }
    return new LastObservable(this, obj);
  };

  var FindValueObserver = (function(__super__) {
    inherits(FindValueObserver, __super__);
    function FindValueObserver(observer, source, callback, yieldIndex) {
      this._o = observer;
      this._s = source;
      this._cb = callback;
      this._y = yieldIndex;
      this._i = 0;
      __super__.call(this);
    }

    FindValueObserver.prototype.next = function (x) {
      var shouldRun = tryCatch(this._cb)(x, this._i, this._s);
      if (shouldRun === errorObj) { return this._o.onError(shouldRun.e); }
      if (shouldRun) {
        this._o.onNext(this._y ? this._i : x);
        this._o.onCompleted();
      } else {
        this._i++;
      }
    };

    FindValueObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    FindValueObserver.prototype.completed = function () {
      this._y && this._o.onNext(-1);
      this._o.onCompleted();
    };

    return FindValueObserver;
  }(AbstractObserver));

  function findValue (source, predicate, thisArg, yieldIndex) {
    var callback = bindCallback(predicate, thisArg, 3);
    return new AnonymousObservable(function (o) {
      return source.subscribe(new FindValueObserver(o, source, callback, yieldIndex));
    }, source);
  }

  /**
   * Searches for an element that matches the conditions defined by the specified predicate, and returns the first occurrence within the entire Observable sequence.
   * @param {Function} predicate The predicate that defines the conditions of the element to search for.
   * @param {Any} [thisArg] Object to use as `this` when executing the predicate.
   * @returns {Observable} An Observable sequence with the first element that matches the conditions defined by the specified predicate, if found; otherwise, undefined.
   */
  observableProto.find = function (predicate, thisArg) {
    return findValue(this, predicate, thisArg, false);
  };

  /**
   * Searches for an element that matches the conditions defined by the specified predicate, and returns
   * an Observable sequence with the zero-based index of the first occurrence within the entire Observable sequence.
   * @param {Function} predicate The predicate that defines the conditions of the element to search for.
   * @param {Any} [thisArg] Object to use as `this` when executing the predicate.
   * @returns {Observable} An Observable sequence with the zero-based index of the first occurrence of an element that matches the conditions defined by match, if found; otherwise, –1.
  */
  observableProto.findIndex = function (predicate, thisArg) {
    return findValue(this, predicate, thisArg, true);
  };

  var ToSetObservable = (function (__super__) {
    inherits(ToSetObservable, __super__);
    function ToSetObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    ToSetObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new ToSetObserver(o));
    };

    return ToSetObservable;
  }(ObservableBase));

  var ToSetObserver = (function (__super__) {
    inherits(ToSetObserver, __super__);
    function ToSetObserver(o) {
      this._o = o;
      this._s = new root.Set();
      __super__.call(this);
    }

    ToSetObserver.prototype.next = function (x) {
      this._s.add(x);
    };

    ToSetObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ToSetObserver.prototype.completed = function () {
      this._o.onNext(this._s);
      this._o.onCompleted();
    };

    return ToSetObserver;
  }(AbstractObserver));

  /**
   * Converts the observable sequence to a Set if it exists.
   * @returns {Observable} An observable sequence with a single value of a Set containing the values from the observable sequence.
   */
  observableProto.toSet = function () {
    if (typeof root.Set === 'undefined') { throw new TypeError(); }
    return new ToSetObservable(this);
  };

  var ToMapObservable = (function (__super__) {
    inherits(ToMapObservable, __super__);
    function ToMapObservable(source, k, e) {
      this.source = source;
      this._k = k;
      this._e = e;
      __super__.call(this);
    }

    ToMapObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new ToMapObserver(o, this._k, this._e));
    };

    return ToMapObservable;
  }(ObservableBase));

  var ToMapObserver = (function (__super__) {
    inherits(ToMapObserver, __super__);
    function ToMapObserver(o, k, e) {
      this._o = o;
      this._k = k;
      this._e = e;
      this._m = new root.Map();
      __super__.call(this);
    }

    ToMapObserver.prototype.next = function (x) {
      var key = tryCatch(this._k)(x);
      if (key === errorObj) { return this._o.onError(key.e); }
      var elem = x;
      if (this._e) {
        elem = tryCatch(this._e)(x);
        if (elem === errorObj) { return this._o.onError(elem.e); }
      }

      this._m.set(key, elem);
    };

    ToMapObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    ToMapObserver.prototype.completed = function () {
      this._o.onNext(this._m);
      this._o.onCompleted();
    };

    return ToMapObserver;
  }(AbstractObserver));

  /**
  * Converts the observable sequence to a Map if it exists.
  * @param {Function} keySelector A function which produces the key for the Map.
  * @param {Function} [elementSelector] An optional function which produces the element for the Map. If not present, defaults to the value from the observable sequence.
  * @returns {Observable} An observable sequence with a single value of a Map containing the values from the observable sequence.
  */
  observableProto.toMap = function (keySelector, elementSelector) {
    if (typeof root.Map === 'undefined') { throw new TypeError(); }
    return new ToMapObservable(this, keySelector, elementSelector);
  };

  var SliceObservable = (function (__super__) {
    inherits(SliceObservable, __super__);
    function SliceObservable(source, b, e) {
      this.source = source;
      this._b = b;
      this._e = e;
      __super__.call(this);
    }

    SliceObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SliceObserver(o, this._b, this._e));
    };

    return SliceObservable;
  }(ObservableBase));

  var SliceObserver = (function (__super__) {
    inherits(SliceObserver, __super__);

    function SliceObserver(o, b, e) {
      this._o = o;
      this._b = b;
      this._e = e;
      this._i = 0;
      __super__.call(this);
    }

    SliceObserver.prototype.next = function (x) {
      if (this._i >= this._b) {
        if (this._e === this._i) {
          this._o.onCompleted();
        } else {
          this._o.onNext(x);
        }
      }
      this._i++;
    };
    SliceObserver.prototype.error = function (e) { this._o.onError(e); };
    SliceObserver.prototype.completed = function () { this._o.onCompleted(); };

    return SliceObserver;
  }(AbstractObserver));

  /*
  * The slice() method returns a shallow copy of a portion of an Observable into a new Observable object.
  * Unlike the array version, this does not support negative numbers for being or end.
  * @param {Number} [begin] Zero-based index at which to begin extraction. If omitted, this will default to zero.
  * @param {Number} [end] Zero-based index at which to end extraction. slice extracts up to but not including end.
  * If omitted, this will emit the rest of the Observable object.
  * @returns {Observable} A shallow copy of a portion of an Observable into a new Observable object.
  */
  observableProto.slice = function (begin, end) {
    var start = begin || 0;
    if (start < 0) { throw new Rx.ArgumentOutOfRangeError(); }
    if (typeof end === 'number' && end < start) {
      throw new Rx.ArgumentOutOfRangeError();
    }
    return new SliceObservable(this, start, end);
  };

  var LastIndexOfObservable = (function (__super__) {
    inherits(LastIndexOfObservable, __super__);
    function LastIndexOfObservable(source, e, n) {
      this.source = source;
      this._e = e;
      this._n = n;
      __super__.call(this);
    }

    LastIndexOfObservable.prototype.subscribeCore = function (o) {
      if (this._n < 0) {
        o.onNext(-1);
        o.onCompleted();
        return disposableEmpty;
      }

      return this.source.subscribe(new LastIndexOfObserver(o, this._e, this._n));
    };

    return LastIndexOfObservable;
  }(ObservableBase));

  var LastIndexOfObserver = (function (__super__) {
    inherits(LastIndexOfObserver, __super__);
    function LastIndexOfObserver(o, e, n) {
      this._o = o;
      this._e = e;
      this._n = n;
      this._v = 0;
      this._hv = false;
      this._i = 0;
      __super__.call(this);
    }

    LastIndexOfObserver.prototype.next = function (x) {
      if (this._i >= this._n && x === this._e) {
        this._hv = true;
        this._v = this._i;
      }
      this._i++;
    };
    LastIndexOfObserver.prototype.error = function (e) { this._o.onError(e); };
    LastIndexOfObserver.prototype.completed = function () {
      if (this._hv) {
        this._o.onNext(this._v);
      } else {
        this._o.onNext(-1);
      }
      this._o.onCompleted();
    };

    return LastIndexOfObserver;
  }(AbstractObserver));

  /**
   * Returns the last index at which a given element can be found in the observable sequence, or -1 if it is not present.
   * @param {Any} searchElement Element to locate in the array.
   * @param {Number} [fromIndex] The index to start the search.  If not specified, defaults to 0.
   * @returns {Observable} And observable sequence containing the last index at which a given element can be found in the observable sequence, or -1 if it is not present.
   */
  observableProto.lastIndexOf = function(searchElement, fromIndex) {
    var n = +fromIndex || 0;
    Math.abs(n) === Infinity && (n = 0);
    return new LastIndexOfObservable(this, searchElement, n);
  };

  Observable.wrap = function (fn) {
    function createObservable() {
      return Observable.spawn.call(this, fn.apply(this, arguments));
    }

    createObservable.__generatorFunction__ = fn;
    return createObservable;
  };

  var spawn = Observable.spawn = function () {
    var gen = arguments[0], self = this, args = [];
    for (var i = 1, len = arguments.length; i < len; i++) { args.push(arguments[i]); }

    return new AnonymousObservable(function (o) {
      var g = new CompositeDisposable();

      if (isFunction(gen)) { gen = gen.apply(self, args); }
      if (!gen || !isFunction(gen.next)) {
        o.onNext(gen);
        return o.onCompleted();
      }

      function processGenerator(res) {
        var ret = tryCatch(gen.next).call(gen, res);
        if (ret === errorObj) { return o.onError(ret.e); }
        next(ret);
      }

      processGenerator();

      function onError(err) {
        var ret = tryCatch(gen.next).call(gen, err);
        if (ret === errorObj) { return o.onError(ret.e); }
        next(ret);
      }

      function next(ret) {
        if (ret.done) {
          o.onNext(ret.value);
          o.onCompleted();
          return;
        }
        var obs = toObservable.call(self, ret.value);
        var value = null;
        var hasValue = false;
        if (Observable.isObservable(obs)) {
          g.add(obs.subscribe(function(val) {
            hasValue = true;
            value = val;
          }, onError, function() {
            hasValue && processGenerator(value);
          }));
        } else {
          onError(new TypeError('type not supported'));
        }
      }

      return g;
    });
  };

  function toObservable(obj) {
    if (!obj) { return obj; }
    if (Observable.isObservable(obj)) { return obj; }
    if (isPromise(obj)) { return Observable.fromPromise(obj); }
    if (isGeneratorFunction(obj) || isGenerator(obj)) { return spawn.call(this, obj); }
    if (isFunction(obj)) { return thunkToObservable.call(this, obj); }
    if (isArrayLike(obj) || isIterable(obj)) { return arrayToObservable.call(this, obj); }
    if (isObject(obj)) {return objectToObservable.call(this, obj);}
    return obj;
  }

  function arrayToObservable (obj) {
    return Observable.from(obj).concatMap(function(o) {
      if(Observable.isObservable(o) || isObject(o)) {
        return toObservable.call(null, o);
      } else {
        return Rx.Observable.just(o);
      }
    }).toArray();
  }

  function objectToObservable (obj) {
    var results = new obj.constructor(), keys = Object.keys(obj), observables = [];
    for (var i = 0, len = keys.length; i < len; i++) {
      var key = keys[i];
      var observable = toObservable.call(this, obj[key]);

      if(observable && Observable.isObservable(observable)) {
        defer(observable, key);
      } else {
        results[key] = obj[key];
      }
    }

    return Observable.forkJoin.apply(Observable, observables).map(function() {
      return results;
    });


    function defer (observable, key) {
      results[key] = undefined;
      observables.push(observable.map(function (next) {
        results[key] = next;
      }));
    }
  }

  function thunkToObservable(fn) {
    var self = this;
    return new AnonymousObservable(function (o) {
      fn.call(self, function () {
        var err = arguments[0], res = arguments[1];
        if (err) { return o.onError(err); }
        if (arguments.length > 2) {
          var args = [];
          for (var i = 1, len = arguments.length; i < len; i++) { args.push(arguments[i]); }
          res = args;
        }
        o.onNext(res);
        o.onCompleted();
      });
    });
  }

  function isGenerator(obj) {
    return isFunction (obj.next) && isFunction (obj['throw']);
  }

  function isGeneratorFunction(obj) {
    var ctor = obj.constructor;
    if (!ctor) { return false; }
    if (ctor.name === 'GeneratorFunction' || ctor.displayName === 'GeneratorFunction') { return true; }
    return isGenerator(ctor.prototype);
  }

  function isObject(val) {
    return Object == val.constructor;
  }

  /**
   * Invokes the specified function asynchronously on the specified scheduler, surfacing the result through an observable sequence.
   *
   * @example
   * var res = Rx.Observable.start(function () { console.log('hello'); });
   * var res = Rx.Observable.start(function () { console.log('hello'); }, Rx.Scheduler.timeout);
   * var res = Rx.Observable.start(function () { this.log('hello'); }, Rx.Scheduler.timeout, console);
   *
   * @param {Function} func Function to run asynchronously.
   * @param {Scheduler} [scheduler]  Scheduler to run the function on. If not specified, defaults to Scheduler.timeout.
   * @param [context]  The context for the func parameter to be executed.  If not specified, defaults to undefined.
   * @returns {Observable} An observable sequence exposing the function's result value, or an exception.
   *
   * Remarks
   * * The function is called immediately, not during the subscription of the resulting sequence.
   * * Multiple subscriptions to the resulting sequence can observe the function's result.
   */
  Observable.start = function (func, context, scheduler) {
    return observableToAsync(func, context, scheduler)();
  };

  /**
   * Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function on the specified scheduler.
   * @param {Function} function Function to convert to an asynchronous function.
   * @param {Scheduler} [scheduler] Scheduler to run the function on. If not specified, defaults to Scheduler.timeout.
   * @param {Mixed} [context] The context for the func parameter to be executed.  If not specified, defaults to undefined.
   * @returns {Function} Asynchronous function.
   */
  var observableToAsync = Observable.toAsync = function (func, context, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return function () {
      var args = arguments,
        subject = new AsyncSubject();

      scheduler.schedule(null, function () {
        var result;
        try {
          result = func.apply(context, args);
        } catch (e) {
          subject.onError(e);
          return;
        }
        subject.onNext(result);
        subject.onCompleted();
      });
      return subject.asObservable();
    };
  };

function createCbObservable(fn, ctx, selector, args) {
  var o = new AsyncSubject();

  args.push(createCbHandler(o, ctx, selector));
  fn.apply(ctx, args);

  return o.asObservable();
}

function createCbHandler(o, ctx, selector) {
  return function handler () {
    var len = arguments.length, results = new Array(len);
    for(var i = 0; i < len; i++) { results[i] = arguments[i]; }

    if (isFunction(selector)) {
      results = tryCatch(selector).apply(ctx, results);
      if (results === errorObj) { return o.onError(results.e); }
      o.onNext(results);
    } else {
      if (results.length <= 1) {
        o.onNext(results[0]);
      } else {
        o.onNext(results);
      }
    }

    o.onCompleted();
  };
}

/**
 * Converts a callback function to an observable sequence.
 *
 * @param {Function} fn Function with a callback as the last parameter to convert to an Observable sequence.
 * @param {Mixed} [ctx] The context for the func parameter to be executed.  If not specified, defaults to undefined.
 * @param {Function} [selector] A selector which takes the arguments from the callback to produce a single item to yield on next.
 * @returns {Function} A function, when executed with the required parameters minus the callback, produces an Observable sequence with a single value of the arguments to the callback as an array.
 */
Observable.fromCallback = function (fn, ctx, selector) {
  return function () {
    typeof ctx === 'undefined' && (ctx = this); 

    var len = arguments.length, args = new Array(len)
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return createCbObservable(fn, ctx, selector, args);
  };
};

function createNodeObservable(fn, ctx, selector, args) {
  var o = new AsyncSubject();

  args.push(createNodeHandler(o, ctx, selector));
  fn.apply(ctx, args);

  return o.asObservable();
}

function createNodeHandler(o, ctx, selector) {
  return function handler () {
    var err = arguments[0];
    if (err) { return o.onError(err); }

    var len = arguments.length, results = [];
    for(var i = 1; i < len; i++) { results[i - 1] = arguments[i]; }

    if (isFunction(selector)) {
      var results = tryCatch(selector).apply(ctx, results);
      if (results === errorObj) { return o.onError(results.e); }
      o.onNext(results);
    } else {
      if (results.length <= 1) {
        o.onNext(results[0]);
      } else {
        o.onNext(results);
      }
    }

    o.onCompleted();
  };
}

/**
 * Converts a Node.js callback style function to an observable sequence.  This must be in function (err, ...) format.
 * @param {Function} fn The function to call
 * @param {Mixed} [ctx] The context for the func parameter to be executed.  If not specified, defaults to undefined.
 * @param {Function} [selector] A selector which takes the arguments from the callback minus the error to produce a single item to yield on next.
 * @returns {Function} An async function which when applied, returns an observable sequence with the callback arguments as an array.
 */
Observable.fromNodeCallback = function (fn, ctx, selector) {
  return function () {
    typeof ctx === 'undefined' && (ctx = this); 
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return createNodeObservable(fn, ctx, selector, args);
  };
};

  function isNodeList(el) {
    if (root.StaticNodeList) {
      // IE8 Specific
      // instanceof is slower than Object#toString, but Object#toString will not work as intended in IE8
      return el instanceof root.StaticNodeList || el instanceof root.NodeList;
    } else {
      return Object.prototype.toString.call(el) === '[object NodeList]';
    }
  }

  function ListenDisposable(e, n, fn) {
    this._e = e;
    this._n = n;
    this._fn = fn;
    this._e.addEventListener(this._n, this._fn, false);
    this.isDisposed = false;
  }
  ListenDisposable.prototype.dispose = function () {
    if (!this.isDisposed) {
      this._e.removeEventListener(this._n, this._fn, false);
      this.isDisposed = true;
    }
  };

  function createEventListener (el, eventName, handler) {
    var disposables = new CompositeDisposable();

    // Asume NodeList or HTMLCollection
    var elemToString = Object.prototype.toString.call(el);
    if (isNodeList(el) || elemToString === '[object HTMLCollection]') {
      for (var i = 0, len = el.length; i < len; i++) {
        disposables.add(createEventListener(el.item(i), eventName, handler));
      }
    } else if (el) {
      disposables.add(new ListenDisposable(el, eventName, handler));
    }

    return disposables;
  }

  /**
   * Configuration option to determine whether to use native events only
   */
  Rx.config.useNativeEvents = false;

  var EventObservable = (function(__super__) {
    inherits(EventObservable, __super__);
    function EventObservable(el, name, fn) {
      this._el = el;
      this._n = name;
      this._fn = fn;
      __super__.call(this);
    }

    function createHandler(o, fn) {
      return function handler () {
        var results = arguments[0];
        if (isFunction(fn)) {
          results = tryCatch(fn).apply(null, arguments);
          if (results === errorObj) { return o.onError(results.e); }
        }
        o.onNext(results);
      };
    }

    EventObservable.prototype.subscribeCore = function (o) {
      return createEventListener(
        this._el,
        this._n,
        createHandler(o, this._fn));
    };

    return EventObservable;
  }(ObservableBase));

  /**
   * Creates an observable sequence by adding an event listener to the matching DOMElement or each item in the NodeList.
   * @param {Object} element The DOMElement or NodeList to attach a listener.
   * @param {String} eventName The event name to attach the observable sequence.
   * @param {Function} [selector] A selector which takes the arguments from the event handler to produce a single item to yield on next.
   * @returns {Observable} An observable sequence of events from the specified element and the specified event.
   */
  Observable.fromEvent = function (element, eventName, selector) {
    // Node.js specific
    if (element.addListener) {
      return fromEventPattern(
        function (h) { element.addListener(eventName, h); },
        function (h) { element.removeListener(eventName, h); },
        selector);
    }

    // Use only if non-native events are allowed
    if (!Rx.config.useNativeEvents) {
      // Handles jq, Angular.js, Zepto, Marionette, Ember.js
      if (typeof element.on === 'function' && typeof element.off === 'function') {
        return fromEventPattern(
          function (h) { element.on(eventName, h); },
          function (h) { element.off(eventName, h); },
          selector);
      }
    }

    return new EventObservable(element, eventName, selector).publish().refCount();
  };

  var EventPatternObservable = (function(__super__) {
    inherits(EventPatternObservable, __super__);
    function EventPatternObservable(add, del, fn) {
      this._add = add;
      this._del = del;
      this._fn = fn;
      __super__.call(this);
    }

    function createHandler(o, fn) {
      return function handler () {
        var results = arguments[0];
        if (isFunction(fn)) {
          results = tryCatch(fn).apply(null, arguments);
          if (results === errorObj) { return o.onError(results.e); }
        }
        o.onNext(results);
      };
    }

    EventPatternObservable.prototype.subscribeCore = function (o) {
      var fn = createHandler(o, this._fn);
      var returnValue = this._add(fn);
      return new EventPatternDisposable(this._del, fn, returnValue);
    };

    function EventPatternDisposable(del, fn, ret) {
      this._del = del;
      this._fn = fn;
      this._ret = ret;
      this.isDisposed = false;
    }

    EventPatternDisposable.prototype.dispose = function () {
      if(!this.isDisposed) {
        isFunction(this._del) && this._del(this._fn, this._ret);
        this.isDisposed = true;
      }
    };

    return EventPatternObservable;
  }(ObservableBase));

  /**
   * Creates an observable sequence from an event emitter via an addHandler/removeHandler pair.
   * @param {Function} addHandler The function to add a handler to the emitter.
   * @param {Function} [removeHandler] The optional function to remove a handler from an emitter.
   * @param {Function} [selector] A selector which takes the arguments from the event handler to produce a single item to yield on next.
   * @returns {Observable} An observable sequence which wraps an event from an event emitter
   */
  var fromEventPattern = Observable.fromEventPattern = function (addHandler, removeHandler, selector) {
    return new EventPatternObservable(addHandler, removeHandler, selector).publish().refCount();
  };

  /**
   * Invokes the asynchronous function, surfacing the result through an observable sequence.
   * @param {Function} functionAsync Asynchronous function which returns a Promise to run.
   * @returns {Observable} An observable sequence exposing the function's result value, or an exception.
   */
  Observable.startAsync = function (functionAsync) {
    var promise = tryCatch(functionAsync)();
    if (promise === errorObj) { return observableThrow(promise.e); }
    return observableFromPromise(promise);
  };

  var PausableObservable = (function (__super__) {
    inherits(PausableObservable, __super__);
    function PausableObservable(source, pauser) {
      this.source = source;
      this.controller = new Subject();
      this.paused = true;

      if (pauser && pauser.subscribe) {
        this.pauser = this.controller.merge(pauser);
      } else {
        this.pauser = this.controller;
      }

      __super__.call(this);
    }

    PausableObservable.prototype._subscribe = function (o) {
      var conn = this.source.publish(),
        subscription = conn.subscribe(o),
        connection = disposableEmpty;

      var pausable = this.pauser.startWith(!this.paused).distinctUntilChanged().subscribe(function (b) {
        if (b) {
          connection = conn.connect();
        } else {
          connection.dispose();
          connection = disposableEmpty;
        }
      });

      return new NAryDisposable([subscription, connection, pausable]);
    };

    PausableObservable.prototype.pause = function () {
      this.paused = true;
      this.controller.onNext(false);
    };

    PausableObservable.prototype.resume = function () {
      this.paused = false;
      this.controller.onNext(true);
    };

    return PausableObservable;

  }(Observable));

  /**
   * Pauses the underlying observable sequence based upon the observable sequence which yields true/false.
   * @example
   * var pauser = new Rx.Subject();
   * var source = Rx.Observable.interval(100).pausable(pauser);
   * @param {Observable} pauser The observable sequence used to pause the underlying sequence.
   * @returns {Observable} The observable sequence which is paused based upon the pauser.
   */
  observableProto.pausable = function (pauser) {
    return new PausableObservable(this, pauser);
  };

  function combineLatestSource(source, subject, resultSelector) {
    return new AnonymousObservable(function (o) {
      var hasValue = [false, false],
        hasValueAll = false,
        isDone = false,
        values = new Array(2),
        err;

      function next(x, i) {
        values[i] = x;
        hasValue[i] = true;
        if (hasValueAll || (hasValueAll = hasValue.every(identity))) {
          if (err) { return o.onError(err); }
          var res = tryCatch(resultSelector).apply(null, values);
          if (res === errorObj) { return o.onError(res.e); }
          o.onNext(res);
        }
        isDone && values[1] && o.onCompleted();
      }

      return new BinaryDisposable(
        source.subscribe(
          function (x) {
            next(x, 0);
          },
          function (e) {
            if (values[1]) {
              o.onError(e);
            } else {
              err = e;
            }
          },
          function () {
            isDone = true;
            values[1] && o.onCompleted();
          }),
        subject.subscribe(
          function (x) {
            next(x, 1);
          },
          function (e) { o.onError(e); },
          function () {
            isDone = true;
            next(true, 1);
          })
        );
    }, source);
  }

  var PausableBufferedObservable = (function (__super__) {
    inherits(PausableBufferedObservable, __super__);
    function PausableBufferedObservable(source, pauser) {
      this.source = source;
      this.controller = new Subject();
      this.paused = true;

      if (pauser && pauser.subscribe) {
        this.pauser = this.controller.merge(pauser);
      } else {
        this.pauser = this.controller;
      }

      __super__.call(this);
    }

    PausableBufferedObservable.prototype._subscribe = function (o) {
      var q = [], previousShouldFire;

      function drainQueue() { while (q.length > 0) { o.onNext(q.shift()); } }

      var subscription =
        combineLatestSource(
          this.source,
          this.pauser.startWith(!this.paused).distinctUntilChanged(),
          function (data, shouldFire) {
            return { data: data, shouldFire: shouldFire };
          })
          .subscribe(
            function (results) {
              if (previousShouldFire !== undefined && results.shouldFire !== previousShouldFire) {
                previousShouldFire = results.shouldFire;
                // change in shouldFire
                if (results.shouldFire) { drainQueue(); }
              } else {
                previousShouldFire = results.shouldFire;
                // new data
                if (results.shouldFire) {
                  o.onNext(results.data);
                } else {
                  q.push(results.data);
                }
              }
            },
            function (err) {
              drainQueue();
              o.onError(err);
            },
            function () {
              drainQueue();
              o.onCompleted();
            }
          );
      return subscription;      
    };

    PausableBufferedObservable.prototype.pause = function () {
      this.paused = true;
      this.controller.onNext(false);
    };

    PausableBufferedObservable.prototype.resume = function () {
      this.paused = false;
      this.controller.onNext(true);
    };

    return PausableBufferedObservable;

  }(Observable));

  /**
   * Pauses the underlying observable sequence based upon the observable sequence which yields true/false,
   * and yields the values that were buffered while paused.
   * @example
   * var pauser = new Rx.Subject();
   * var source = Rx.Observable.interval(100).pausableBuffered(pauser);
   * @param {Observable} pauser The observable sequence used to pause the underlying sequence.
   * @returns {Observable} The observable sequence which is paused based upon the pauser.
   */
  observableProto.pausableBuffered = function (pauser) {
    return new PausableBufferedObservable(this, pauser);
  };

  var ControlledObservable = (function (__super__) {
    inherits(ControlledObservable, __super__);
    function ControlledObservable (source, enableQueue, scheduler) {
      __super__.call(this);
      this.subject = new ControlledSubject(enableQueue, scheduler);
      this.source = source.multicast(this.subject).refCount();
    }

    ControlledObservable.prototype._subscribe = function (o) {
      return this.source.subscribe(o);
    };

    ControlledObservable.prototype.request = function (numberOfItems) {
      return this.subject.request(numberOfItems == null ? -1 : numberOfItems);
    };

    return ControlledObservable;

  }(Observable));

  var ControlledSubject = (function (__super__) {
    inherits(ControlledSubject, __super__);
    function ControlledSubject(enableQueue, scheduler) {
      enableQueue == null && (enableQueue = true);

      __super__.call(this);
      this.subject = new Subject();
      this.enableQueue = enableQueue;
      this.queue = enableQueue ? [] : null;
      this.requestedCount = 0;
      this.requestedDisposable = null;
      this.error = null;
      this.hasFailed = false;
      this.hasCompleted = false;
      this.scheduler = scheduler || currentThreadScheduler;
    }

    addProperties(ControlledSubject.prototype, Observer, {
      _subscribe: function (o) {
        return this.subject.subscribe(o);
      },
      onCompleted: function () {
        this.hasCompleted = true;
        if (!this.enableQueue || this.queue.length === 0) {
          this.subject.onCompleted();
          this.disposeCurrentRequest();
        } else {
          this.queue.push(Notification.createOnCompleted());
        }
      },
      onError: function (error) {
        this.hasFailed = true;
        this.error = error;
        if (!this.enableQueue || this.queue.length === 0) {
          this.subject.onError(error);
          this.disposeCurrentRequest();
        } else {
          this.queue.push(Notification.createOnError(error));
        }
      },
      onNext: function (value) {
        if (this.requestedCount <= 0) {
          this.enableQueue && this.queue.push(Notification.createOnNext(value));
        } else {
          (this.requestedCount-- === 0) && this.disposeCurrentRequest();
          this.subject.onNext(value);
        }
      },
      _processRequest: function (numberOfItems) {
        if (this.enableQueue) {
          while (this.queue.length > 0 && (numberOfItems > 0 || this.queue[0].kind !== 'N')) {
            var first = this.queue.shift();
            first.accept(this.subject);
            if (first.kind === 'N') {
              numberOfItems--;
            } else {
              this.disposeCurrentRequest();
              this.queue = [];
            }
          }
        }

        return numberOfItems;
      },
      request: function (number) {
        this.disposeCurrentRequest();
        var self = this;

        this.requestedDisposable = this.scheduler.schedule(number,
        function(s, i) {
          var remaining = self._processRequest(i);
          var stopped = self.hasCompleted || self.hasFailed;
          if (!stopped && remaining > 0) {
            self.requestedCount = remaining;

            return disposableCreate(function () {
              self.requestedCount = 0;
            });
              // Scheduled item is still in progress. Return a new
              // disposable to allow the request to be interrupted
              // via dispose.
          }
        });

        return this.requestedDisposable;
      },
      disposeCurrentRequest: function () {
        if (this.requestedDisposable) {
          this.requestedDisposable.dispose();
          this.requestedDisposable = null;
        }
      }
    });

    return ControlledSubject;
  }(Observable));

  /**
   * Attaches a controller to the observable sequence with the ability to queue.
   * @example
   * var source = Rx.Observable.interval(100).controlled();
   * source.request(3); // Reads 3 values
   * @param {bool} enableQueue truthy value to determine if values should be queued pending the next request
   * @param {Scheduler} scheduler determines how the requests will be scheduled
   * @returns {Observable} The observable sequence which only propagates values on request.
   */
  observableProto.controlled = function (enableQueue, scheduler) {

    if (enableQueue && isScheduler(enableQueue)) {
      scheduler = enableQueue;
      enableQueue = true;
    }

    if (enableQueue == null) {  enableQueue = true; }
    return new ControlledObservable(this, enableQueue, scheduler);
  };

  var StopAndWaitObservable = (function (__super__) {
    inherits(StopAndWaitObservable, __super__);
    function StopAndWaitObservable (source) {
      __super__.call(this);
      this.source = source;
    }

    function scheduleMethod(s, self) {
      return self.source.request(1);
    }

    StopAndWaitObservable.prototype._subscribe = function (o) {
      this.subscription = this.source.subscribe(new StopAndWaitObserver(o, this, this.subscription));
      return new BinaryDisposable(
        this.subscription,
        defaultScheduler.schedule(this, scheduleMethod)
      );
    };

    var StopAndWaitObserver = (function (__sub__) {
      inherits(StopAndWaitObserver, __sub__);
      function StopAndWaitObserver (observer, observable, cancel) {
        __sub__.call(this);
        this.observer = observer;
        this.observable = observable;
        this.cancel = cancel;
        this.scheduleDisposable = null;
      }

      StopAndWaitObserver.prototype.completed = function () {
        this.observer.onCompleted();
        this.dispose();
      };

      StopAndWaitObserver.prototype.error = function (error) {
        this.observer.onError(error);
        this.dispose();
      };

      function innerScheduleMethod(s, self) {
        return self.observable.source.request(1);
      }

      StopAndWaitObserver.prototype.next = function (value) {
        this.observer.onNext(value);
        this.scheduleDisposable = defaultScheduler.schedule(this, innerScheduleMethod);
      };

      StopAndWaitObserver.dispose = function () {
        this.observer = null;
        if (this.cancel) {
          this.cancel.dispose();
          this.cancel = null;
        }
        if (this.scheduleDisposable) {
          this.scheduleDisposable.dispose();
          this.scheduleDisposable = null;
        }
        __sub__.prototype.dispose.call(this);
      };

      return StopAndWaitObserver;
    }(AbstractObserver));

    return StopAndWaitObservable;
  }(Observable));


  /**
   * Attaches a stop and wait observable to the current observable.
   * @returns {Observable} A stop and wait observable.
   */
  ControlledObservable.prototype.stopAndWait = function () {
    return new StopAndWaitObservable(this);
  };

  var WindowedObservable = (function (__super__) {
    inherits(WindowedObservable, __super__);
    function WindowedObservable(source, windowSize) {
      __super__.call(this);
      this.source = source;
      this.windowSize = windowSize;
    }

    function scheduleMethod(s, self) {
      return self.source.request(self.windowSize);
    }

    WindowedObservable.prototype._subscribe = function (o) {
      this.subscription = this.source.subscribe(new WindowedObserver(o, this, this.subscription));
      return new BinaryDisposable(
        this.subscription,
        defaultScheduler.schedule(this, scheduleMethod)
      );
    };

    var WindowedObserver = (function (__sub__) {
      inherits(WindowedObserver, __sub__);
      function WindowedObserver(observer, observable, cancel) {
        this.observer = observer;
        this.observable = observable;
        this.cancel = cancel;
        this.received = 0;
        this.scheduleDisposable = null;
        __sub__.call(this);
      }

      WindowedObserver.prototype.completed = function () {
        this.observer.onCompleted();
        this.dispose();
      };

      WindowedObserver.prototype.error = function (error) {
        this.observer.onError(error);
        this.dispose();
      };

      function innerScheduleMethod(s, self) {
        return self.observable.source.request(self.observable.windowSize);
      }

      WindowedObserver.prototype.next = function (value) {
        this.observer.onNext(value);
        this.received = ++this.received % this.observable.windowSize;
        this.received === 0 && (this.scheduleDisposable = defaultScheduler.schedule(this, innerScheduleMethod));
      };

      WindowedObserver.prototype.dispose = function () {
        this.observer = null;
        if (this.cancel) {
          this.cancel.dispose();
          this.cancel = null;
        }
        if (this.scheduleDisposable) {
          this.scheduleDisposable.dispose();
          this.scheduleDisposable = null;
        }
        __sub__.prototype.dispose.call(this);
      };

      return WindowedObserver;
    }(AbstractObserver));

    return WindowedObservable;
  }(Observable));

  /**
   * Creates a sliding windowed observable based upon the window size.
   * @param {Number} windowSize The number of items in the window
   * @returns {Observable} A windowed observable based upon the window size.
   */
  ControlledObservable.prototype.windowed = function (windowSize) {
    return new WindowedObservable(this, windowSize);
  };

  /**
   * Pipes the existing Observable sequence into a Node.js Stream.
   * @param {Stream} dest The destination Node.js stream.
   * @returns {Stream} The destination stream.
   */
  observableProto.pipe = function (dest) {
    var source = this.pausableBuffered();

    function onDrain() {
      source.resume();
    }

    dest.addListener('drain', onDrain);

    source.subscribe(
      function (x) {
        !dest.write(x) && source.pause();
      },
      function (err) {
        dest.emit('error', err);
      },
      function () {
        // Hack check because STDIO is not closable
        !dest._isStdio && dest.end();
        dest.removeListener('drain', onDrain);
      });

    source.resume();

    return dest;
  };

  var MulticastObservable = (function (__super__) {
    inherits(MulticastObservable, __super__);
    function MulticastObservable(source, fn1, fn2) {
      this.source = source;
      this._fn1 = fn1;
      this._fn2 = fn2;
      __super__.call(this);
    }

    MulticastObservable.prototype.subscribeCore = function (o) {
      var connectable = this.source.multicast(this._fn1());
      return new BinaryDisposable(this._fn2(connectable).subscribe(o), connectable.connect());
    };

    return MulticastObservable;
  }(ObservableBase));

  /**
   * Multicasts the source sequence notifications through an instantiated subject into all uses of the sequence within a selector function. Each
   * subscription to the resulting sequence causes a separate multicast invocation, exposing the sequence resulting from the selector function's
   * invocation. For specializations with fixed subject types, see Publish, PublishLast, and Replay.
   *
   * @example
   * 1 - res = source.multicast(observable);
   * 2 - res = source.multicast(function () { return new Subject(); }, function (x) { return x; });
   *
   * @param {Function|Subject} subjectOrSubjectSelector
   * Factory function to create an intermediate subject through which the source sequence's elements will be multicast to the selector function.
   * Or:
   * Subject to push source elements into.
   *
   * @param {Function} [selector] Optional selector function which can use the multicasted source sequence subject to the policies enforced by the created subject. Specified only if <paramref name="subjectOrSubjectSelector" is a factory function.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.multicast = function (subjectOrSubjectSelector, selector) {
    return isFunction(subjectOrSubjectSelector) ?
      new MulticastObservable(this, subjectOrSubjectSelector, selector) :
      new ConnectableObservable(this, subjectOrSubjectSelector);
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence.
   * This operator is a specialization of Multicast using a regular Subject.
   *
   * @example
   * var resres = source.publish();
   * var res = source.publish(function (x) { return x; });
   *
   * @param {Function} [selector] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive all notifications of the source from the time of the subscription on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publish = function (selector) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new Subject(); }, selector) :
      this.multicast(new Subject());
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence.
   * This operator is a specialization of publish which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.share = function () {
    return this.publish().refCount();
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence containing only the last notification.
   * This operator is a specialization of Multicast using a AsyncSubject.
   *
   * @example
   * var res = source.publishLast();
   * var res = source.publishLast(function (x) { return x; });
   *
   * @param selector [Optional] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will only receive the last notification of the source.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publishLast = function (selector) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new AsyncSubject(); }, selector) :
      this.multicast(new AsyncSubject());
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence and starts with initialValue.
   * This operator is a specialization of Multicast using a BehaviorSubject.
   *
   * @example
   * var res = source.publishValue(42);
   * var res = source.publishValue(function (x) { return x.select(function (y) { return y * y; }) }, 42);
   *
   * @param {Function} [selector] Optional selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive immediately receive the initial value, followed by all notifications of the source from the time of the subscription on.
   * @param {Mixed} initialValue Initial value received by observers upon subscription.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.publishValue = function (initialValueOrSelector, initialValue) {
    return arguments.length === 2 ?
      this.multicast(function () {
        return new BehaviorSubject(initialValue);
      }, initialValueOrSelector) :
      this.multicast(new BehaviorSubject(initialValueOrSelector));
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence and starts with an initialValue.
   * This operator is a specialization of publishValue which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   * @param {Mixed} initialValue Initial value received by observers upon subscription.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.shareValue = function (initialValue) {
    return this.publishValue(initialValue).refCount();
  };

  /**
   * Returns an observable sequence that is the result of invoking the selector on a connectable observable sequence that shares a single subscription to the underlying sequence replaying notifications subject to a maximum time length for the replay buffer.
   * This operator is a specialization of Multicast using a ReplaySubject.
   *
   * @example
   * var res = source.replay(null, 3);
   * var res = source.replay(null, 3, 500);
   * var res = source.replay(null, 3, 500, scheduler);
   * var res = source.replay(function (x) { return x.take(6).repeat(); }, 3, 500, scheduler);
   *
   * @param selector [Optional] Selector function which can use the multicasted source sequence as many times as needed, without causing multiple subscriptions to the source sequence. Subscribers to the given source will receive all the notifications of the source subject to the specified replay buffer trimming policy.
   * @param bufferSize [Optional] Maximum element count of the replay buffer.
   * @param windowSize [Optional] Maximum time length of the replay buffer.
   * @param scheduler [Optional] Scheduler where connected observers within the selector function will be invoked on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.replay = function (selector, bufferSize, windowSize, scheduler) {
    return selector && isFunction(selector) ?
      this.multicast(function () { return new ReplaySubject(bufferSize, windowSize, scheduler); }, selector) :
      this.multicast(new ReplaySubject(bufferSize, windowSize, scheduler));
  };

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence replaying notifications subject to a maximum time length for the replay buffer.
   * This operator is a specialization of replay which creates a subscription when the number of observers goes from zero to one, then shares that subscription with all subsequent observers until the number of observers returns to zero, at which point the subscription is disposed.
   *
   * @example
   * var res = source.shareReplay(3);
   * var res = source.shareReplay(3, 500);
   * var res = source.shareReplay(3, 500, scheduler);
   *

   * @param bufferSize [Optional] Maximum element count of the replay buffer.
   * @param window [Optional] Maximum time length of the replay buffer.
   * @param scheduler [Optional] Scheduler where connected observers within the selector function will be invoked on.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence.
   */
  observableProto.shareReplay = function (bufferSize, windowSize, scheduler) {
    return this.replay(null, bufferSize, windowSize, scheduler).refCount();
  };

  var InnerSubscription = function (s, o) {
    this._s = s;
    this._o = o;
  };

  InnerSubscription.prototype.dispose = function () {
    if (!this._s.isDisposed && this._o !== null) {
      var idx = this._s.observers.indexOf(this._o);
      this._s.observers.splice(idx, 1);
      this._o = null;
    }
  };

  var RefCountObservable = (function (__super__) {
    inherits(RefCountObservable, __super__);
    function RefCountObservable(source) {
      this.source = source;
      this._count = 0;
      this._connectableSubscription = null;
      __super__.call(this);
    }

    RefCountObservable.prototype.subscribeCore = function (o) {
      var subscription = this.source.subscribe(o);
      ++this._count === 1 && (this._connectableSubscription = this.source.connect());
      return new RefCountDisposable(this, subscription);
    };

    function RefCountDisposable(p, s) {
      this._p = p;
      this._s = s;
      this.isDisposed = false;
    }

    RefCountDisposable.prototype.dispose = function () {
      if (!this.isDisposed) {
        this.isDisposed = true;
        this._s.dispose();
        --this._p._count === 0 && this._p._connectableSubscription.dispose();
      }
    };

    return RefCountObservable;
  }(ObservableBase));

  var ConnectableObservable = Rx.ConnectableObservable = (function (__super__) {
    inherits(ConnectableObservable, __super__);
    function ConnectableObservable(source, subject) {
      this.source = source;
      this._connection = null;
      this._source = source.asObservable();
      this._subject = subject;
      __super__.call(this);
    }

    function ConnectDisposable(parent, subscription) {
      this._p = parent;
      this._s = subscription;
    }

    ConnectDisposable.prototype.dispose = function () {
      if (this._s) {
        this._s.dispose();
        this._s = null;
        this._p._connection = null;
      }
    };

    ConnectableObservable.prototype.connect = function () {
      if (!this._connection) {
        if (this._subject.isStopped) {
          return disposableEmpty;
        }
        var subscription = this._source.subscribe(this._subject);
        this._connection = new ConnectDisposable(this, subscription);
      }
      return this._connection;
    };

    ConnectableObservable.prototype._subscribe = function (o) {
      return this._subject.subscribe(o);
    };

    ConnectableObservable.prototype.refCount = function () {
      return new RefCountObservable(this);
    };

    return ConnectableObservable;
  }(Observable));

  /**
   * Returns an observable sequence that shares a single subscription to the underlying sequence. This observable sequence
   * can be resubscribed to, even if all prior subscriptions have ended. (unlike `.publish().refCount()`)
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source.
   */
  observableProto.singleInstance = function() {
    var source = this, hasObservable = false, observable;

    function getObservable() {
      if (!hasObservable) {
        hasObservable = true;
        observable = source['finally'](function() { hasObservable = false; }).publish().refCount();
      }
      return observable;
    }

    return new AnonymousObservable(function(o) {
      return getObservable().subscribe(o);
    });
  };

  /**
   *  Correlates the elements of two sequences based on overlapping durations.
   *
   *  @param {Observable} right The right observable sequence to join elements for.
   *  @param {Function} leftDurationSelector A function to select the duration (expressed as an observable sequence) of each element of the left observable sequence, used to determine overlap.
   *  @param {Function} rightDurationSelector A function to select the duration (expressed as an observable sequence) of each element of the right observable sequence, used to determine overlap.
   *  @param {Function} resultSelector A function invoked to compute a result element for any two overlapping elements of the left and right observable sequences. The parameters passed to the function correspond with the elements from the left and right source sequences for which overlap occurs.
   *  @returns {Observable} An observable sequence that contains result elements computed from source elements that have an overlapping duration.
   */
  observableProto.join = function (right, leftDurationSelector, rightDurationSelector, resultSelector) {
    var left = this;
    return new AnonymousObservable(function (o) {
      var group = new CompositeDisposable();
      var leftDone = false, rightDone = false;
      var leftId = 0, rightId = 0;
      var leftMap = new Map(), rightMap = new Map();
      var handleError = function (e) { o.onError(e); };

      group.add(left.subscribe(
        function (value) {
          var id = leftId++, md = new SingleAssignmentDisposable();

          leftMap.set(id, value);
          group.add(md);

          var duration = tryCatch(leftDurationSelector)(value);
          if (duration === errorObj) { return o.onError(duration.e); }

          md.setDisposable(duration.take(1).subscribe(
            noop,
            handleError,
            function () {
              leftMap['delete'](id) && leftMap.size === 0 && leftDone && o.onCompleted();
              group.remove(md);
            }));

          rightMap.forEach(function (v) {
            var result = tryCatch(resultSelector)(value, v);
            if (result === errorObj) { return o.onError(result.e); }
            o.onNext(result);
          });
        },
        handleError,
        function () {
          leftDone = true;
          (rightDone || leftMap.size === 0) && o.onCompleted();
        })
      );

      group.add(right.subscribe(
        function (value) {
          var id = rightId++, md = new SingleAssignmentDisposable();

          rightMap.set(id, value);
          group.add(md);

          var duration = tryCatch(rightDurationSelector)(value);
          if (duration === errorObj) { return o.onError(duration.e); }

          md.setDisposable(duration.take(1).subscribe(
            noop,
            handleError,
            function () {
              rightMap['delete'](id) && rightMap.size === 0 && rightDone && o.onCompleted();
              group.remove(md);
            }));

          leftMap.forEach(function (v) {
            var result = tryCatch(resultSelector)(v, value);
            if (result === errorObj) { return o.onError(result.e); }
            o.onNext(result);
          });
        },
        handleError,
        function () {
          rightDone = true;
          (leftDone || rightMap.size === 0) && o.onCompleted();
        })
      );
      return group;
    }, left);
  };

  /**
   *  Correlates the elements of two sequences based on overlapping durations, and groups the results.
   *
   *  @param {Observable} right The right observable sequence to join elements for.
   *  @param {Function} leftDurationSelector A function to select the duration (expressed as an observable sequence) of each element of the left observable sequence, used to determine overlap.
   *  @param {Function} rightDurationSelector A function to select the duration (expressed as an observable sequence) of each element of the right observable sequence, used to determine overlap.
   *  @param {Function} resultSelector A function invoked to compute a result element for any element of the left sequence with overlapping elements from the right observable sequence. The first parameter passed to the function is an element of the left sequence. The second parameter passed to the function is an observable sequence with elements from the right sequence that overlap with the left sequence's element.
   *  @returns {Observable} An observable sequence that contains result elements computed from source elements that have an overlapping duration.
   */
  observableProto.groupJoin = function (right, leftDurationSelector, rightDurationSelector, resultSelector) {
    var left = this;
    return new AnonymousObservable(function (o) {
      var group = new CompositeDisposable();
      var r = new RefCountDisposable(group);
      var leftMap = new Map(), rightMap = new Map();
      var leftId = 0, rightId = 0;
      var handleError = function (e) { return function (v) { v.onError(e); }; };

      function handleError(e) { };

      group.add(left.subscribe(
        function (value) {
          var s = new Subject();
          var id = leftId++;
          leftMap.set(id, s);

          var result = tryCatch(resultSelector)(value, addRef(s, r));
          if (result === errorObj) {
            leftMap.forEach(handleError(result.e));
            return o.onError(result.e);
          }
          o.onNext(result);

          rightMap.forEach(function (v) { s.onNext(v); });

          var md = new SingleAssignmentDisposable();
          group.add(md);

          var duration = tryCatch(leftDurationSelector)(value);
          if (duration === errorObj) {
            leftMap.forEach(handleError(duration.e));
            return o.onError(duration.e);
          }

          md.setDisposable(duration.take(1).subscribe(
            noop,
            function (e) {
              leftMap.forEach(handleError(e));
              o.onError(e);
            },
            function () {
              leftMap['delete'](id) && s.onCompleted();
              group.remove(md);
            }));
        },
        function (e) {
          leftMap.forEach(handleError(e));
          o.onError(e);
        },
        function () { o.onCompleted(); })
      );

      group.add(right.subscribe(
        function (value) {
          var id = rightId++;
          rightMap.set(id, value);

          var md = new SingleAssignmentDisposable();
          group.add(md);

          var duration = tryCatch(rightDurationSelector)(value);
          if (duration === errorObj) {
            leftMap.forEach(handleError(duration.e));
            return o.onError(duration.e);
          }

          md.setDisposable(duration.take(1).subscribe(
            noop,
            function (e) {
              leftMap.forEach(handleError(e));
              o.onError(e);
            },
            function () {
              rightMap['delete'](id);
              group.remove(md);
            }));

          leftMap.forEach(function (v) { v.onNext(value); });
        },
        function (e) {
          leftMap.forEach(handleError(e));
          o.onError(e);
        })
      );

      return r;
    }, left);
  };

  function toArray(x) { return x.toArray(); }

  /**
   *  Projects each element of an observable sequence into zero or more buffers.
   *  @param {Mixed} bufferOpeningsOrClosingSelector Observable sequence whose elements denote the creation of new windows, or, a function invoked to define the boundaries of the produced windows (a new window is started when the previous one is closed, resulting in non-overlapping windows).
   *  @param {Function} [bufferClosingSelector] A function invoked to define the closing of each produced window. If a closing selector function is specified for the first parameter, this parameter is ignored.
   *  @returns {Observable} An observable sequence of windows.
   */
  observableProto.buffer = function () {
    return this.window.apply(this, arguments)
      .flatMap(toArray);
  };

  /**
   *  Projects each element of an observable sequence into zero or more windows.
   *
   *  @param {Mixed} windowOpeningsOrClosingSelector Observable sequence whose elements denote the creation of new windows, or, a function invoked to define the boundaries of the produced windows (a new window is started when the previous one is closed, resulting in non-overlapping windows).
   *  @param {Function} [windowClosingSelector] A function invoked to define the closing of each produced window. If a closing selector function is specified for the first parameter, this parameter is ignored.
   *  @returns {Observable} An observable sequence of windows.
   */
  observableProto.window = function (windowOpeningsOrClosingSelector, windowClosingSelector) {
    if (arguments.length === 1 && typeof arguments[0] !== 'function') {
      return observableWindowWithBoundaries.call(this, windowOpeningsOrClosingSelector);
    }
    return typeof windowOpeningsOrClosingSelector === 'function' ?
      observableWindowWithClosingSelector.call(this, windowOpeningsOrClosingSelector) :
      observableWindowWithOpenings.call(this, windowOpeningsOrClosingSelector, windowClosingSelector);
  };

  function observableWindowWithOpenings(windowOpenings, windowClosingSelector) {
    return windowOpenings.groupJoin(this, windowClosingSelector, observableEmpty, function (_, win) {
      return win;
    });
  }

  function observableWindowWithBoundaries(windowBoundaries) {
    var source = this;
    return new AnonymousObservable(function (observer) {
      var win = new Subject(),
        d = new CompositeDisposable(),
        r = new RefCountDisposable(d);

      observer.onNext(addRef(win, r));

      d.add(source.subscribe(function (x) {
        win.onNext(x);
      }, function (err) {
        win.onError(err);
        observer.onError(err);
      }, function () {
        win.onCompleted();
        observer.onCompleted();
      }));

      isPromise(windowBoundaries) && (windowBoundaries = observableFromPromise(windowBoundaries));

      d.add(windowBoundaries.subscribe(function (w) {
        win.onCompleted();
        win = new Subject();
        observer.onNext(addRef(win, r));
      }, function (err) {
        win.onError(err);
        observer.onError(err);
      }, function () {
        win.onCompleted();
        observer.onCompleted();
      }));

      return r;
    }, source);
  }

  function observableWindowWithClosingSelector(windowClosingSelector) {
    var source = this;
    return new AnonymousObservable(function (observer) {
      var m = new SerialDisposable(),
        d = new CompositeDisposable(m),
        r = new RefCountDisposable(d),
        win = new Subject();
      observer.onNext(addRef(win, r));
      d.add(source.subscribe(function (x) {
          win.onNext(x);
      }, function (err) {
          win.onError(err);
          observer.onError(err);
      }, function () {
          win.onCompleted();
          observer.onCompleted();
      }));

      function createWindowClose () {
        var windowClose;
        try {
          windowClose = windowClosingSelector();
        } catch (e) {
          observer.onError(e);
          return;
        }

        isPromise(windowClose) && (windowClose = observableFromPromise(windowClose));

        var m1 = new SingleAssignmentDisposable();
        m.setDisposable(m1);
        m1.setDisposable(windowClose.take(1).subscribe(noop, function (err) {
          win.onError(err);
          observer.onError(err);
        }, function () {
          win.onCompleted();
          win = new Subject();
          observer.onNext(addRef(win, r));
          createWindowClose();
        }));
      }

      createWindowClose();
      return r;
    }, source);
  }

  var PairwiseObservable = (function (__super__) {
    inherits(PairwiseObservable, __super__);
    function PairwiseObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    PairwiseObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new PairwiseObserver(o));
    };

    return PairwiseObservable;
  }(ObservableBase));

  var PairwiseObserver = (function(__super__) {
    inherits(PairwiseObserver, __super__);
    function PairwiseObserver(o) {
      this._o = o;
      this._p = null;
      this._hp = false;
      __super__.call(this);
    }

    PairwiseObserver.prototype.next = function (x) {
      if (this._hp) {
        this._o.onNext([this._p, x]);
      } else {
        this._hp = true;
      }
      this._p = x;
    };
    PairwiseObserver.prototype.error = function (err) { this._o.onError(err); };
    PairwiseObserver.prototype.completed = function () { this._o.onCompleted(); };

    return PairwiseObserver;
  }(AbstractObserver));

  /**
   * Returns a new observable that triggers on the second and subsequent triggerings of the input observable.
   * The Nth triggering of the input observable passes the arguments from the N-1th and Nth triggering as a pair.
   * The argument passed to the N-1th triggering is held in hidden internal state until the Nth triggering occurs.
   * @returns {Observable} An observable that triggers on successive pairs of observations from the input observable as an array.
   */
  observableProto.pairwise = function () {
    return new PairwiseObservable(this);
  };

  /**
   * Returns two observables which partition the observations of the source by the given function.
   * The first will trigger observations for those values for which the predicate returns true.
   * The second will trigger observations for those values where the predicate returns false.
   * The predicate is executed once for each subscribed observer.
   * Both also propagate all error observations arising from the source and each completes
   * when the source completes.
   * @param {Function} predicate
   *    The function to determine which output Observable will trigger a particular observation.
   * @returns {Array}
   *    An array of observables. The first triggers when the predicate returns true,
   *    and the second triggers when the predicate returns false.
  */
  observableProto.partition = function(predicate, thisArg) {
    var fn = bindCallback(predicate, thisArg, 3);
    return [
      this.filter(predicate, thisArg),
      this.filter(function (x, i, o) { return !fn(x, i, o); })
    ];
  };

  var WhileEnumerable = (function(__super__) {
    inherits(WhileEnumerable, __super__);
    function WhileEnumerable(c, s) {
      this.c = c;
      this.s = s;
    }
    WhileEnumerable.prototype[$iterator$] = function () {
      var self = this;
      return {
        next: function () {
          return self.c() ?
           { done: false, value: self.s } :
           { done: true, value: void 0 };
        }
      };
    };
    return WhileEnumerable;
  }(Enumerable));
  
  function enumerableWhile(condition, source) {
    return new WhileEnumerable(condition, source);
  }  

   /**
   *  Returns an observable sequence that is the result of invoking the selector on the source sequence, without sharing subscriptions.
   *  This operator allows for a fluent style of writing queries that use the same sequence multiple times.
   *
   * @param {Function} selector Selector function which can use the source sequence as many times as needed, without sharing subscriptions to the source sequence.
   * @returns {Observable} An observable sequence that contains the elements of a sequence produced by multicasting the source sequence within a selector function.
   */
  observableProto.letBind = observableProto['let'] = function (func) {
    return func(this);
  };

   /**
   *  Determines whether an observable collection contains values. 
   *
   * @example
   *  1 - res = Rx.Observable.if(condition, obs1);
   *  2 - res = Rx.Observable.if(condition, obs1, obs2);
   *  3 - res = Rx.Observable.if(condition, obs1, scheduler);
   * @param {Function} condition The condition which determines if the thenSource or elseSource will be run.
   * @param {Observable} thenSource The observable sequence or Promise that will be run if the condition function returns true.
   * @param {Observable} [elseSource] The observable sequence or Promise that will be run if the condition function returns false. If this is not provided, it defaults to Rx.Observabe.Empty with the specified scheduler.
   * @returns {Observable} An observable sequence which is either the thenSource or elseSource.
   */
  Observable['if'] = function (condition, thenSource, elseSourceOrScheduler) {
    return observableDefer(function () {
      elseSourceOrScheduler || (elseSourceOrScheduler = observableEmpty());

      isPromise(thenSource) && (thenSource = observableFromPromise(thenSource));
      isPromise(elseSourceOrScheduler) && (elseSourceOrScheduler = observableFromPromise(elseSourceOrScheduler));

      // Assume a scheduler for empty only
      typeof elseSourceOrScheduler.now === 'function' && (elseSourceOrScheduler = observableEmpty(elseSourceOrScheduler));
      return condition() ? thenSource : elseSourceOrScheduler;
    });
  };

   /**
   *  Concatenates the observable sequences obtained by running the specified result selector for each element in source.
   * There is an alias for this method called 'forIn' for browsers <IE9
   * @param {Array} sources An array of values to turn into an observable sequence.
   * @param {Function} resultSelector A function to apply to each item in the sources array to turn it into an observable sequence.
   * @returns {Observable} An observable sequence from the concatenated observable sequences.
   */
  Observable['for'] = Observable.forIn = function (sources, resultSelector, thisArg) {
    return enumerableOf(sources, resultSelector, thisArg).concat();
  };

   /**
   *  Repeats source as long as condition holds emulating a while loop.
   * There is an alias for this method called 'whileDo' for browsers <IE9
   *
   * @param {Function} condition The condition which determines if the source will be repeated.
   * @param {Observable} source The observable sequence that will be run if the condition function returns true.
   * @returns {Observable} An observable sequence which is repeated as long as the condition holds.
   */
  var observableWhileDo = Observable['while'] = Observable.whileDo = function (condition, source) {
    isPromise(source) && (source = observableFromPromise(source));
    return enumerableWhile(condition, source).concat();
  };

   /**
   *  Repeats source as long as condition holds emulating a do while loop.
   *
   * @param {Function} condition The condition which determines if the source will be repeated.
   * @param {Observable} source The observable sequence that will be run if the condition function returns true.
   * @returns {Observable} An observable sequence which is repeated as long as the condition holds.
   */
  observableProto.doWhile = function (condition) {
    return observableConcat([this, observableWhileDo(condition, this)]);
  };

   /**
   *  Uses selector to determine which source in sources to use.
   * @param {Function} selector The function which extracts the value for to test in a case statement.
   * @param {Array} sources A object which has keys which correspond to the case statement labels.
   * @param {Observable} [elseSource] The observable sequence or Promise that will be run if the sources are not matched. If this is not provided, it defaults to Rx.Observabe.empty with the specified scheduler.
   *
   * @returns {Observable} An observable sequence which is determined by a case statement.
   */
  Observable['case'] = function (selector, sources, defaultSourceOrScheduler) {
    return observableDefer(function () {
      isPromise(defaultSourceOrScheduler) && (defaultSourceOrScheduler = observableFromPromise(defaultSourceOrScheduler));
      defaultSourceOrScheduler || (defaultSourceOrScheduler = observableEmpty());

      isScheduler(defaultSourceOrScheduler) && (defaultSourceOrScheduler = observableEmpty(defaultSourceOrScheduler));

      var result = sources[selector()];
      isPromise(result) && (result = observableFromPromise(result));

      return result || defaultSourceOrScheduler;
    });
  };

  var ExpandObservable = (function(__super__) {
    inherits(ExpandObservable, __super__);
    function ExpandObservable(source, fn, scheduler) {
      this.source = source;
      this._fn = fn;
      this._scheduler = scheduler;
      __super__.call(this);
    }

    function scheduleRecursive(args, recurse) {
      var state = args[0], self = args[1];
      var work;
      if (state.q.length > 0) {
        work = state.q.shift();
      } else {
        state.isAcquired = false;
        return;
      }
      var m1 = new SingleAssignmentDisposable();
      state.d.add(m1);
      m1.setDisposable(work.subscribe(new ExpandObserver(state, self, m1)));
      recurse([state, self]);
    }

    ExpandObservable.prototype._ensureActive = function (state) {
      var isOwner = false;
      if (state.q.length > 0) {
        isOwner = !state.isAcquired;
        state.isAcquired = true;
      }
      isOwner && state.m.setDisposable(this._scheduler.scheduleRecursive([state, this], scheduleRecursive));
    };

    ExpandObservable.prototype.subscribeCore = function (o) {
      var m = new SerialDisposable(),
        d = new CompositeDisposable(m),
        state = {
          q: [],
          m: m,
          d: d,
          activeCount: 0,
          isAcquired: false,
          o: o
        };

      state.q.push(this.source);
      state.activeCount++;
      this._ensureActive(state);
      return d;
    };

    return ExpandObservable;
  }(ObservableBase));

  var ExpandObserver = (function(__super__) {
    inherits(ExpandObserver, __super__);
    function ExpandObserver(state, parent, m1) {
      this._s = state;
      this._p = parent;
      this._m1 = m1;
      __super__.call(this);
    }

    ExpandObserver.prototype.next = function (x) {
      this._s.o.onNext(x);
      var result = tryCatch(this._p._fn)(x);
      if (result === errorObj) { return this._s.o.onError(result.e); }
      this._s.q.push(result);
      this._s.activeCount++;
      this._p._ensureActive(this._s);
    };

    ExpandObserver.prototype.error = function (e) {
      this._s.o.onError(e);
    };

    ExpandObserver.prototype.completed = function () {
      this._s.d.remove(this._m1);
      this._s.activeCount--;
      this._s.activeCount === 0 && this._s.o.onCompleted();
    };

    return ExpandObserver;
  }(AbstractObserver));

   /**
   *  Expands an observable sequence by recursively invoking selector.
   *
   * @param {Function} selector Selector function to invoke for each produced element, resulting in another sequence to which the selector will be invoked recursively again.
   * @param {Scheduler} [scheduler] Scheduler on which to perform the expansion. If not provided, this defaults to the current thread scheduler.
   * @returns {Observable} An observable sequence containing all the elements produced by the recursive expansion.
   */
  observableProto.expand = function (selector, scheduler) {
    isScheduler(scheduler) || (scheduler = currentThreadScheduler);
    return new ExpandObservable(this, selector, scheduler);
  };

  function argumentsToArray() {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    return args;
  }

  var ForkJoinObservable = (function (__super__) {
    inherits(ForkJoinObservable, __super__);
    function ForkJoinObservable(sources, cb) {
      this._sources = sources;
      this._cb = cb;
      __super__.call(this);
    }

    ForkJoinObservable.prototype.subscribeCore = function (o) {
      if (this._sources.length === 0) {
        o.onCompleted();
        return disposableEmpty;
      }

      var count = this._sources.length;
      var state = {
        finished: false,
        hasResults: new Array(count),
        hasCompleted: new Array(count),
        results: new Array(count)
      };

      var subscriptions = new CompositeDisposable();
      for (var i = 0, len = this._sources.length; i < len; i++) {
        var source = this._sources[i];
        isPromise(source) && (source = observableFromPromise(source));
        subscriptions.add(source.subscribe(new ForkJoinObserver(o, state, i, this._cb, subscriptions)));
      }

      return subscriptions;
    };

    return ForkJoinObservable;
  }(ObservableBase));

  var ForkJoinObserver = (function(__super__) {
    inherits(ForkJoinObserver, __super__);
    function ForkJoinObserver(o, s, i, cb, subs) {
      this._o = o;
      this._s = s;
      this._i = i;
      this._cb = cb;
      this._subs = subs;
      __super__.call(this);
    }

    ForkJoinObserver.prototype.next = function (x) {
      if (!this._s.finished) {
        this._s.hasResults[this._i] = true;
        this._s.results[this._i] = x;
      }
    };

    ForkJoinObserver.prototype.error = function (e) {
      this._s.finished = true;
      this._o.onError(e);
      this._subs.dispose();
    };

    ForkJoinObserver.prototype.completed = function () {
      if (!this._s.finished) {
        if (!this._s.hasResults[this._i]) {
          return this._o.onCompleted();
        }
        this._s.hasCompleted[this._i] = true;
        for (var i = 0; i < this._s.results.length; i++) {
          if (!this._s.hasCompleted[i]) { return; }
        }
        this._s.finished = true;

        var res = tryCatch(this._cb).apply(null, this._s.results);
        if (res === errorObj) { return this._o.onError(res.e); }

        this._o.onNext(res);
        this._o.onCompleted();
      }
    };

    return ForkJoinObserver;
  }(AbstractObserver));

   /**
   *  Runs all observable sequences in parallel and collect their last elements.
   *
   * @example
   *  1 - res = Rx.Observable.forkJoin([obs1, obs2]);
   *  1 - res = Rx.Observable.forkJoin(obs1, obs2, ...);
   * @returns {Observable} An observable sequence with an array collecting the last elements of all the input sequences.
   */
  Observable.forkJoin = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    var resultSelector = isFunction(args[len - 1]) ? args.pop() : argumentsToArray;
    Array.isArray(args[0]) && (args = args[0]);
    return new ForkJoinObservable(args, resultSelector);
  };

   /**
   *  Runs two observable sequences in parallel and combines their last elemenets.
   * @param {Observable} second Second observable sequence.
   * @param {Function} resultSelector Result selector function to invoke with the last elements of both sequences.
   * @returns {Observable} An observable sequence with the result of calling the selector function with the last elements of both input sequences.
   */
  observableProto.forkJoin = function () {
    var len = arguments.length, args = new Array(len);
    for(var i = 0; i < len; i++) { args[i] = arguments[i]; }
    if (Array.isArray(args[0])) {
      args[0].unshift(this);
    } else {
      args.unshift(this);
    }
    return Observable.forkJoin.apply(null, args);
  };

  /**
   * Comonadic bind operator.
   * @param {Function} selector A transform function to apply to each element.
   * @param {Object} scheduler Scheduler used to execute the operation. If not specified, defaults to the ImmediateScheduler.
   * @returns {Observable} An observable sequence which results from the comonadic bind operation.
   */
  observableProto.manySelect = observableProto.extend = function (selector, scheduler) {
    isScheduler(scheduler) || (scheduler = Rx.Scheduler.immediate);
    var source = this;
    return observableDefer(function () {
      var chain;

      return source
        .map(function (x) {
          var curr = new ChainObservable(x);

          chain && chain.onNext(x);
          chain = curr;

          return curr;
        })
        .tap(
          noop,
          function (e) { chain && chain.onError(e); },
          function () { chain && chain.onCompleted(); }
        )
        .observeOn(scheduler)
        .map(selector);
    }, source);
  };

  var ChainObservable = (function (__super__) {
    inherits(ChainObservable, __super__);
    function ChainObservable(head) {
      __super__.call(this);
      this.head = head;
      this.tail = new AsyncSubject();
    }

    addProperties(ChainObservable.prototype, Observer, {
      _subscribe: function (o) {
        var g = new CompositeDisposable();
        g.add(currentThreadScheduler.schedule(this, function (_, self) {
          o.onNext(self.head);
          g.add(self.tail.mergeAll().subscribe(o));
        }));

        return g;
      },
      onCompleted: function () {
        this.onNext(Observable.empty());
      },
      onError: function (e) {
        this.onNext(Observable['throw'](e));
      },
      onNext: function (v) {
        this.tail.onNext(v);
        this.tail.onCompleted();
      }
    });

    return ChainObservable;

  }(Observable));

  var Map = root.Map || (function () {
    function Map() {
      this.size = 0;
      this._values = [];
      this._keys = [];
    }

    Map.prototype['delete'] = function (key) {
      var i = this._keys.indexOf(key);
      if (i === -1) { return false; }
      this._values.splice(i, 1);
      this._keys.splice(i, 1);
      this.size--;
      return true;
    };

    Map.prototype.get = function (key) {
      var i = this._keys.indexOf(key);
      return i === -1 ? undefined : this._values[i];
    };

    Map.prototype.set = function (key, value) {
      var i = this._keys.indexOf(key);
      if (i === -1) {
        this._keys.push(key);
        this._values.push(value);
        this.size++;
      } else {
        this._values[i] = value;
      }
      return this;
    };

    Map.prototype.forEach = function (cb, thisArg) {
      for (var i = 0; i < this.size; i++) {
        cb.call(thisArg, this._values[i], this._keys[i]);
      }
    };

    return Map;
  }());

  /**
   * @constructor
   * Represents a join pattern over observable sequences.
   */
  function Pattern(patterns) {
    this.patterns = patterns;
  }

  /**
   *  Creates a pattern that matches the current plan matches and when the specified observable sequences has an available value.
   *  @param other Observable sequence to match in addition to the current pattern.
   *  @return {Pattern} Pattern object that matches when all observable sequences in the pattern have an available value.
   */
  Pattern.prototype.and = function (other) {
    return new Pattern(this.patterns.concat(other));
  };

  /**
   *  Matches when all observable sequences in the pattern (specified using a chain of and operators) have an available value and projects the values.
   *  @param {Function} selector Selector that will be invoked with available values from the source sequences, in the same order of the sequences in the pattern.
   *  @return {Plan} Plan that produces the projected values, to be fed (with other plans) to the when operator.
   */
  Pattern.prototype.thenDo = function (selector) {
    return new Plan(this, selector);
  };

  function Plan(expression, selector) {
    this.expression = expression;
    this.selector = selector;
  }

  function handleOnError(o) { return function (e) { o.onError(e); }; }
  function handleOnNext(self, observer) {
    return function onNext () {
      var result = tryCatch(self.selector).apply(self, arguments);
      if (result === errorObj) { return observer.onError(result.e); }
      observer.onNext(result);
    };
  }

  Plan.prototype.activate = function (externalSubscriptions, observer, deactivate) {
    var joinObservers = [], errHandler = handleOnError(observer);
    for (var i = 0, len = this.expression.patterns.length; i < len; i++) {
      joinObservers.push(planCreateObserver(externalSubscriptions, this.expression.patterns[i], errHandler));
    }
    var activePlan = new ActivePlan(joinObservers, handleOnNext(this, observer), function () {
      for (var j = 0, jlen = joinObservers.length; j < jlen; j++) {
        joinObservers[j].removeActivePlan(activePlan);
      }
      deactivate(activePlan);
    });
    for (i = 0, len = joinObservers.length; i < len; i++) {
      joinObservers[i].addActivePlan(activePlan);
    }
    return activePlan;
  };

  function planCreateObserver(externalSubscriptions, observable, onError) {
    var entry = externalSubscriptions.get(observable);
    if (!entry) {
      var observer = new JoinObserver(observable, onError);
      externalSubscriptions.set(observable, observer);
      return observer;
    }
    return entry;
  }

  function ActivePlan(joinObserverArray, onNext, onCompleted) {
    this.joinObserverArray = joinObserverArray;
    this.onNext = onNext;
    this.onCompleted = onCompleted;
    this.joinObservers = new Map();
    for (var i = 0, len = this.joinObserverArray.length; i < len; i++) {
      var joinObserver = this.joinObserverArray[i];
      this.joinObservers.set(joinObserver, joinObserver);
    }
  }

  ActivePlan.prototype.dequeue = function () {
    this.joinObservers.forEach(function (v) { v.queue.shift(); });
  };

  ActivePlan.prototype.match = function () {
    var i, len, hasValues = true;
    for (i = 0, len = this.joinObserverArray.length; i < len; i++) {
      if (this.joinObserverArray[i].queue.length === 0) {
        hasValues = false;
        break;
      }
    }
    if (hasValues) {
      var firstValues = [],
          isCompleted = false;
      for (i = 0, len = this.joinObserverArray.length; i < len; i++) {
        firstValues.push(this.joinObserverArray[i].queue[0]);
        this.joinObserverArray[i].queue[0].kind === 'C' && (isCompleted = true);
      }
      if (isCompleted) {
        this.onCompleted();
      } else {
        this.dequeue();
        var values = [];
        for (i = 0, len = firstValues.length; i < firstValues.length; i++) {
          values.push(firstValues[i].value);
        }
        this.onNext.apply(this, values);
      }
    }
  };

  var JoinObserver = (function (__super__) {
    inherits(JoinObserver, __super__);

    function JoinObserver(source, onError) {
      __super__.call(this);
      this.source = source;
      this.onError = onError;
      this.queue = [];
      this.activePlans = [];
      this.subscription = new SingleAssignmentDisposable();
      this.isDisposed = false;
    }

    var JoinObserverPrototype = JoinObserver.prototype;

    JoinObserverPrototype.next = function (notification) {
      if (!this.isDisposed) {
        if (notification.kind === 'E') {
          return this.onError(notification.error);
        }
        this.queue.push(notification);
        var activePlans = this.activePlans.slice(0);
        for (var i = 0, len = activePlans.length; i < len; i++) {
          activePlans[i].match();
        }
      }
    };

    JoinObserverPrototype.error = noop;
    JoinObserverPrototype.completed = noop;

    JoinObserverPrototype.addActivePlan = function (activePlan) {
      this.activePlans.push(activePlan);
    };

    JoinObserverPrototype.subscribe = function () {
      this.subscription.setDisposable(this.source.materialize().subscribe(this));
    };

    JoinObserverPrototype.removeActivePlan = function (activePlan) {
      this.activePlans.splice(this.activePlans.indexOf(activePlan), 1);
      this.activePlans.length === 0 && this.dispose();
    };

    JoinObserverPrototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      if (!this.isDisposed) {
        this.isDisposed = true;
        this.subscription.dispose();
      }
    };

    return JoinObserver;
  } (AbstractObserver));

  /**
   *  Creates a pattern that matches when both observable sequences have an available value.
   *
   *  @param right Observable sequence to match with the current sequence.
   *  @return {Pattern} Pattern object that matches when both observable sequences have an available value.
   */
  observableProto.and = function (right) {
    return new Pattern([this, right]);
  };

  /**
   *  Matches when the observable sequence has an available value and projects the value.
   *
   *  @param {Function} selector Selector that will be invoked for values in the source sequence.
   *  @returns {Plan} Plan that produces the projected values, to be fed (with other plans) to the when operator.
   */
  observableProto.thenDo = function (selector) {
    return new Pattern([this]).thenDo(selector);
  };

  /**
   *  Joins together the results from several patterns.
   *
   *  @param plans A series of plans (specified as an Array of as a series of arguments) created by use of the Then operator on patterns.
   *  @returns {Observable} Observable sequence with the results form matching several patterns.
   */
  Observable.when = function () {
    var len = arguments.length, plans;
    if (Array.isArray(arguments[0])) {
      plans = arguments[0];
    } else {
      plans = new Array(len);
      for(var i = 0; i < len; i++) { plans[i] = arguments[i]; }
    }
    return new AnonymousObservable(function (o) {
      var activePlans = [],
          externalSubscriptions = new Map();
      var outObserver = observerCreate(
        function (x) { o.onNext(x); },
        function (err) {
          externalSubscriptions.forEach(function (v) { v.onError(err); });
          o.onError(err);
        },
        function (x) { o.onCompleted(); }
      );
      try {
        for (var i = 0, len = plans.length; i < len; i++) {
          activePlans.push(plans[i].activate(externalSubscriptions, outObserver, function (activePlan) {
            var idx = activePlans.indexOf(activePlan);
            activePlans.splice(idx, 1);
            activePlans.length === 0 && o.onCompleted();
          }));
        }
      } catch (e) {
        return observableThrow(e).subscribe(o);
      }
      var group = new CompositeDisposable();
      externalSubscriptions.forEach(function (joinObserver) {
        joinObserver.subscribe();
        group.add(joinObserver);
      });

      return group;
    });
  };

  var TimerObservable = (function(__super__) {
    inherits(TimerObservable, __super__);
    function TimerObservable(dt, s) {
      this._dt = dt;
      this._s = s;
      __super__.call(this);
    }

    TimerObservable.prototype.subscribeCore = function (o) {
      return this._s.scheduleFuture(o, this._dt, scheduleMethod);
    };

    function scheduleMethod(s, o) {
      o.onNext(0);
      o.onCompleted();
    }

    return TimerObservable;
  }(ObservableBase));

  function _observableTimer(dueTime, scheduler) {
    return new TimerObservable(dueTime, scheduler);
  }

  function observableTimerDateAndPeriod(dueTime, period, scheduler) {
    return new AnonymousObservable(function (observer) {
      var d = dueTime, p = normalizeTime(period);
      return scheduler.scheduleRecursiveFuture(0, d, function (count, self) {
        if (p > 0) {
          var now = scheduler.now();
          d = new Date(d.getTime() + p);
          d.getTime() <= now && (d = new Date(now + p));
        }
        observer.onNext(count);
        self(count + 1, new Date(d));
      });
    });
  }

  function observableTimerTimeSpanAndPeriod(dueTime, period, scheduler) {
    return dueTime === period ?
      new AnonymousObservable(function (observer) {
        return scheduler.schedulePeriodic(0, period, function (count) {
          observer.onNext(count);
          return count + 1;
        });
      }) :
      observableDefer(function () {
        return observableTimerDateAndPeriod(new Date(scheduler.now() + dueTime), period, scheduler);
      });
  }

  /**
   *  Returns an observable sequence that produces a value after each period.
   *
   * @example
   *  1 - res = Rx.Observable.interval(1000);
   *  2 - res = Rx.Observable.interval(1000, Rx.Scheduler.timeout);
   *
   * @param {Number} period Period for producing the values in the resulting sequence (specified as an integer denoting milliseconds).
   * @param {Scheduler} [scheduler] Scheduler to run the timer on. If not specified, Rx.Scheduler.timeout is used.
   * @returns {Observable} An observable sequence that produces a value after each period.
   */
  var observableinterval = Observable.interval = function (period, scheduler) {
    return observableTimerTimeSpanAndPeriod(period, period, isScheduler(scheduler) ? scheduler : defaultScheduler);
  };

  /**
   *  Returns an observable sequence that produces a value after dueTime has elapsed and then after each period.
   * @param {Number} dueTime Absolute (specified as a Date object) or relative time (specified as an integer denoting milliseconds) at which to produce the first value.
   * @param {Mixed} [periodOrScheduler]  Period to produce subsequent values (specified as an integer denoting milliseconds), or the scheduler to run the timer on. If not specified, the resulting timer is not recurring.
   * @param {Scheduler} [scheduler]  Scheduler to run the timer on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence that produces a value after due time has elapsed and then each period.
   */
  var observableTimer = Observable.timer = function (dueTime, periodOrScheduler, scheduler) {
    var period;
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    if (periodOrScheduler != null && typeof periodOrScheduler === 'number') {
      period = periodOrScheduler;
    } else if (isScheduler(periodOrScheduler)) {
      scheduler = periodOrScheduler;
    }
    if ((dueTime instanceof Date || typeof dueTime === 'number') && period === undefined) {
      return _observableTimer(dueTime, scheduler);
    }
    if (dueTime instanceof Date && period !== undefined) {
      return observableTimerDateAndPeriod(dueTime, periodOrScheduler, scheduler);
    }
    return observableTimerTimeSpanAndPeriod(dueTime, period, scheduler);
  };

  function observableDelayRelative(source, dueTime, scheduler) {
    return new AnonymousObservable(function (o) {
      var active = false,
        cancelable = new SerialDisposable(),
        exception = null,
        q = [],
        running = false,
        subscription;
      subscription = source.materialize().timestamp(scheduler).subscribe(function (notification) {
        var d, shouldRun;
        if (notification.value.kind === 'E') {
          q = [];
          q.push(notification);
          exception = notification.value.error;
          shouldRun = !running;
        } else {
          q.push({ value: notification.value, timestamp: notification.timestamp + dueTime });
          shouldRun = !active;
          active = true;
        }
        if (shouldRun) {
          if (exception !== null) {
            o.onError(exception);
          } else {
            d = new SingleAssignmentDisposable();
            cancelable.setDisposable(d);
            d.setDisposable(scheduler.scheduleRecursiveFuture(null, dueTime, function (_, self) {
              var e, recurseDueTime, result, shouldRecurse;
              if (exception !== null) {
                return;
              }
              running = true;
              do {
                result = null;
                if (q.length > 0 && q[0].timestamp - scheduler.now() <= 0) {
                  result = q.shift().value;
                }
                if (result !== null) {
                  result.accept(o);
                }
              } while (result !== null);
              shouldRecurse = false;
              recurseDueTime = 0;
              if (q.length > 0) {
                shouldRecurse = true;
                recurseDueTime = Math.max(0, q[0].timestamp - scheduler.now());
              } else {
                active = false;
              }
              e = exception;
              running = false;
              if (e !== null) {
                o.onError(e);
              } else if (shouldRecurse) {
                self(null, recurseDueTime);
              }
            }));
          }
        }
      });
      return new BinaryDisposable(subscription, cancelable);
    }, source);
  }

  function observableDelayAbsolute(source, dueTime, scheduler) {
    return observableDefer(function () {
      return observableDelayRelative(source, dueTime - scheduler.now(), scheduler);
    });
  }

  function delayWithSelector(source, subscriptionDelay, delayDurationSelector) {
    var subDelay, selector;
    if (isFunction(subscriptionDelay)) {
      selector = subscriptionDelay;
    } else {
      subDelay = subscriptionDelay;
      selector = delayDurationSelector;
    }
    return new AnonymousObservable(function (o) {
      var delays = new CompositeDisposable(), atEnd = false, subscription = new SerialDisposable();

      function start() {
        subscription.setDisposable(source.subscribe(
          function (x) {
            var delay = tryCatch(selector)(x);
            if (delay === errorObj) { return o.onError(delay.e); }
            var d = new SingleAssignmentDisposable();
            delays.add(d);
            d.setDisposable(delay.subscribe(
              function () {
                o.onNext(x);
                delays.remove(d);
                done();
              },
              function (e) { o.onError(e); },
              function () {
                o.onNext(x);
                delays.remove(d);
                done();
              }
            ));
          },
          function (e) { o.onError(e); },
          function () {
            atEnd = true;
            subscription.dispose();
            done();
          }
        ));
      }

      function done () {
        atEnd && delays.length === 0 && o.onCompleted();
      }

      if (!subDelay) {
        start();
      } else {
        subscription.setDisposable(subDelay.subscribe(start, function (e) { o.onError(e); }, start));
      }

      return new BinaryDisposable(subscription, delays);
    }, source);
  }

  /**
   *  Time shifts the observable sequence by dueTime.
   *  The relative time intervals between the values are preserved.
   *
   * @param {Number} dueTime Absolute (specified as a Date object) or relative time (specified as an integer denoting milliseconds) by which to shift the observable sequence.
   * @param {Scheduler} [scheduler] Scheduler to run the delay timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} Time-shifted sequence.
   */
  observableProto.delay = function () {
    var firstArg = arguments[0];
    if (typeof firstArg === 'number' || firstArg instanceof Date) {
      var dueTime = firstArg, scheduler = arguments[1];
      isScheduler(scheduler) || (scheduler = defaultScheduler);
      return dueTime instanceof Date ?
        observableDelayAbsolute(this, dueTime, scheduler) :
        observableDelayRelative(this, dueTime, scheduler);
    } else if (Observable.isObservable(firstArg) || isFunction(firstArg)) {
      return delayWithSelector(this, firstArg, arguments[1]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  var DebounceObservable = (function (__super__) {
    inherits(DebounceObservable, __super__);
    function DebounceObservable(source, dt, s) {
      isScheduler(s) || (s = defaultScheduler);
      this.source = source;
      this._dt = dt;
      this._s = s;
      __super__.call(this);
    }

    DebounceObservable.prototype.subscribeCore = function (o) {
      var cancelable = new SerialDisposable();
      return new BinaryDisposable(
        this.source.subscribe(new DebounceObserver(o, this._dt, this._s, cancelable)),
        cancelable);
    };

    return DebounceObservable;
  }(ObservableBase));

  var DebounceObserver = (function (__super__) {
    inherits(DebounceObserver, __super__);
    function DebounceObserver(observer, dueTime, scheduler, cancelable) {
      this._o = observer;
      this._d = dueTime;
      this._scheduler = scheduler;
      this._c = cancelable;
      this._v = null;
      this._hv = false;
      this._id = 0;
      __super__.call(this);
    }

    function scheduleFuture(s, state) {
      state.self._hv && state.self._id === state.currentId && state.self._o.onNext(state.x);
      state.self._hv = false;
    }

    DebounceObserver.prototype.next = function (x) {
      this._hv = true;
      this._v = x;
      var currentId = ++this._id, d = new SingleAssignmentDisposable();
      this._c.setDisposable(d);
      d.setDisposable(this._scheduler.scheduleFuture(this, this._d, function (_, self) {
        self._hv && self._id === currentId && self._o.onNext(x);
        self._hv = false;
      }));
    };

    DebounceObserver.prototype.error = function (e) {
      this._c.dispose();
      this._o.onError(e);
      this._hv = false;
      this._id++;
    };

    DebounceObserver.prototype.completed = function () {
      this._c.dispose();
      this._hv && this._o.onNext(this._v);
      this._o.onCompleted();
      this._hv = false;
      this._id++;
    };

    return DebounceObserver;
  }(AbstractObserver));

  function debounceWithSelector(source, durationSelector) {
    return new AnonymousObservable(function (o) {
      var value, hasValue = false, cancelable = new SerialDisposable(), id = 0;
      var subscription = source.subscribe(
        function (x) {
          var throttle = tryCatch(durationSelector)(x);
          if (throttle === errorObj) { return o.onError(throttle.e); }

          isPromise(throttle) && (throttle = observableFromPromise(throttle));

          hasValue = true;
          value = x;
          id++;
          var currentid = id, d = new SingleAssignmentDisposable();
          cancelable.setDisposable(d);
          d.setDisposable(throttle.subscribe(
            function () {
              hasValue && id === currentid && o.onNext(value);
              hasValue = false;
              d.dispose();
            },
            function (e) { o.onError(e); },
            function () {
              hasValue && id === currentid && o.onNext(value);
              hasValue = false;
              d.dispose();
            }
          ));
        },
        function (e) {
          cancelable.dispose();
          o.onError(e);
          hasValue = false;
          id++;
        },
        function () {
          cancelable.dispose();
          hasValue && o.onNext(value);
          o.onCompleted();
          hasValue = false;
          id++;
        }
      );
      return new BinaryDisposable(subscription, cancelable);
    }, source);
  }

  observableProto.debounce = function () {
    if (isFunction (arguments[0])) {
      return debounceWithSelector(this, arguments[0]);
    } else if (typeof arguments[0] === 'number') {
      return new DebounceObservable(this, arguments[0], arguments[1]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  /**
   *  Projects each element of an observable sequence into zero or more windows which are produced based on timing information.
   * @param {Number} timeSpan Length of each window (specified as an integer denoting milliseconds).
   * @param {Mixed} [timeShiftOrScheduler]  Interval between creation of consecutive windows (specified as an integer denoting milliseconds), or an optional scheduler parameter. If not specified, the time shift corresponds to the timeSpan parameter, resulting in non-overlapping adjacent windows.
   * @param {Scheduler} [scheduler]  Scheduler to run windowing timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence of windows.
   */
  observableProto.windowWithTime = observableProto.windowTime = function (timeSpan, timeShiftOrScheduler, scheduler) {
    var source = this, timeShift;
    timeShiftOrScheduler == null && (timeShift = timeSpan);
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    if (typeof timeShiftOrScheduler === 'number') {
      timeShift = timeShiftOrScheduler;
    } else if (isScheduler(timeShiftOrScheduler)) {
      timeShift = timeSpan;
      scheduler = timeShiftOrScheduler;
    }
    return new AnonymousObservable(function (observer) {
      var groupDisposable,
        nextShift = timeShift,
        nextSpan = timeSpan,
        q = [],
        refCountDisposable,
        timerD = new SerialDisposable(),
        totalTime = 0;
        groupDisposable = new CompositeDisposable(timerD),
        refCountDisposable = new RefCountDisposable(groupDisposable);

       function createTimer () {
        var m = new SingleAssignmentDisposable(),
          isSpan = false,
          isShift = false;
        timerD.setDisposable(m);
        if (nextSpan === nextShift) {
          isSpan = true;
          isShift = true;
        } else if (nextSpan < nextShift) {
            isSpan = true;
        } else {
          isShift = true;
        }
        var newTotalTime = isSpan ? nextSpan : nextShift,
          ts = newTotalTime - totalTime;
        totalTime = newTotalTime;
        if (isSpan) {
          nextSpan += timeShift;
        }
        if (isShift) {
          nextShift += timeShift;
        }
        m.setDisposable(scheduler.scheduleFuture(null, ts, function () {
          if (isShift) {
            var s = new Subject();
            q.push(s);
            observer.onNext(addRef(s, refCountDisposable));
          }
          isSpan && q.shift().onCompleted();
          createTimer();
        }));
      };
      q.push(new Subject());
      observer.onNext(addRef(q[0], refCountDisposable));
      createTimer();
      groupDisposable.add(source.subscribe(
        function (x) {
          for (var i = 0, len = q.length; i < len; i++) { q[i].onNext(x); }
        },
        function (e) {
          for (var i = 0, len = q.length; i < len; i++) { q[i].onError(e); }
          observer.onError(e);
        },
        function () {
          for (var i = 0, len = q.length; i < len; i++) { q[i].onCompleted(); }
          observer.onCompleted();
        }
      ));
      return refCountDisposable;
    }, source);
  };

  /**
   *  Projects each element of an observable sequence into a window that is completed when either it's full or a given amount of time has elapsed.
   * @param {Number} timeSpan Maximum time length of a window.
   * @param {Number} count Maximum element count of a window.
   * @param {Scheduler} [scheduler]  Scheduler to run windowing timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence of windows.
   */
  observableProto.windowWithTimeOrCount = observableProto.windowTimeOrCount = function (timeSpan, count, scheduler) {
    var source = this;
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new AnonymousObservable(function (observer) {
      var timerD = new SerialDisposable(),
          groupDisposable = new CompositeDisposable(timerD),
          refCountDisposable = new RefCountDisposable(groupDisposable),
          n = 0,
          windowId = 0,
          s = new Subject();

      function createTimer(id) {
        var m = new SingleAssignmentDisposable();
        timerD.setDisposable(m);
        m.setDisposable(scheduler.scheduleFuture(null, timeSpan, function () {
          if (id !== windowId) { return; }
          n = 0;
          var newId = ++windowId;
          s.onCompleted();
          s = new Subject();
          observer.onNext(addRef(s, refCountDisposable));
          createTimer(newId);
        }));
      }

      observer.onNext(addRef(s, refCountDisposable));
      createTimer(0);

      groupDisposable.add(source.subscribe(
        function (x) {
          var newId = 0, newWindow = false;
          s.onNext(x);
          if (++n === count) {
            newWindow = true;
            n = 0;
            newId = ++windowId;
            s.onCompleted();
            s = new Subject();
            observer.onNext(addRef(s, refCountDisposable));
          }
          newWindow && createTimer(newId);
        },
        function (e) {
          s.onError(e);
          observer.onError(e);
        }, function () {
          s.onCompleted();
          observer.onCompleted();
        }
      ));
      return refCountDisposable;
    }, source);
  };

  function toArray(x) { return x.toArray(); }

  /**
   *  Projects each element of an observable sequence into zero or more buffers which are produced based on timing information.
   * @param {Number} timeSpan Length of each buffer (specified as an integer denoting milliseconds).
   * @param {Mixed} [timeShiftOrScheduler]  Interval between creation of consecutive buffers (specified as an integer denoting milliseconds), or an optional scheduler parameter. If not specified, the time shift corresponds to the timeSpan parameter, resulting in non-overlapping adjacent buffers.
   * @param {Scheduler} [scheduler]  Scheduler to run buffer timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence of buffers.
   */
  observableProto.bufferWithTime = observableProto.bufferTime = function (timeSpan, timeShiftOrScheduler, scheduler) {
    return this.windowWithTime(timeSpan, timeShiftOrScheduler, scheduler).flatMap(toArray);
  };

  function toArray(x) { return x.toArray(); }

  /**
   *  Projects each element of an observable sequence into a buffer that is completed when either it's full or a given amount of time has elapsed.
   * @param {Number} timeSpan Maximum time length of a buffer.
   * @param {Number} count Maximum element count of a buffer.
   * @param {Scheduler} [scheduler]  Scheduler to run bufferin timers on. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence of buffers.
   */
  observableProto.bufferWithTimeOrCount = observableProto.bufferTimeOrCount = function (timeSpan, count, scheduler) {
    return this.windowWithTimeOrCount(timeSpan, count, scheduler).flatMap(toArray);
  };

  var TimeIntervalObservable = (function (__super__) {
    inherits(TimeIntervalObservable, __super__);
    function TimeIntervalObservable(source, s) {
      this.source = source;
      this._s = s;
      __super__.call(this);
    }

    TimeIntervalObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new TimeIntervalObserver(o, this._s));
    };

    return TimeIntervalObservable;
  }(ObservableBase));

  var TimeIntervalObserver = (function (__super__) {
    inherits(TimeIntervalObserver, __super__);

    function TimeIntervalObserver(o, s) {
      this._o = o;
      this._s = s;
      this._l = s.now();
      __super__.call(this);
    }

    TimeIntervalObserver.prototype.next = function (x) {
      var now = this._s.now(), span = now - this._l;
      this._l = now;
      this._o.onNext({ value: x, interval: span });
    };
    TimeIntervalObserver.prototype.error = function (e) { this._o.onError(e); };
    TimeIntervalObserver.prototype.completed = function () { this._o.onCompleted(); };

    return TimeIntervalObserver;
  }(AbstractObserver));

  /**
   *  Records the time interval between consecutive values in an observable sequence.
   *
   * @example
   *  1 - res = source.timeInterval();
   *  2 - res = source.timeInterval(Rx.Scheduler.timeout);
   *
   * @param [scheduler]  Scheduler used to compute time intervals. If not specified, the timeout scheduler is used.
   * @returns {Observable} An observable sequence with time interval information on values.
   */
  observableProto.timeInterval = function (scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new TimeIntervalObservable(this, scheduler);
  };

  var TimestampObservable = (function (__super__) {
    inherits(TimestampObservable, __super__);
    function TimestampObservable(source, s) {
      this.source = source;
      this._s = s;
      __super__.call(this);
    }

    TimestampObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new TimestampObserver(o, this._s));
    };

    return TimestampObservable;
  }(ObservableBase));

  var TimestampObserver = (function (__super__) {
    inherits(TimestampObserver, __super__);
    function TimestampObserver(o, s) {
      this._o = o;
      this._s = s;
      __super__.call(this);
    }

    TimestampObserver.prototype.next = function (x) {
      this._o.onNext({ value: x, timestamp: this._s.now() });
    };

    TimestampObserver.prototype.error = function (e) {
      this._o.onError(e);
    };

    TimestampObserver.prototype.completed = function () {
      this._o.onCompleted();
    };

    return TimestampObserver;
  }(AbstractObserver));

  /**
   *  Records the timestamp for each value in an observable sequence.
   *
   * @example
   *  1 - res = source.timestamp(); // produces { value: x, timestamp: ts }
   *  2 - res = source.timestamp(Rx.Scheduler.default);
   *
   * @param {Scheduler} [scheduler]  Scheduler used to compute timestamps. If not specified, the default scheduler is used.
   * @returns {Observable} An observable sequence with timestamp information on values.
   */
  observableProto.timestamp = function (scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new TimestampObservable(this, scheduler);
  };

  var SampleObservable = (function(__super__) {
    inherits(SampleObservable, __super__);
    function SampleObservable(source, sampler) {
      this.source = source;
      this._sampler = sampler;
      __super__.call(this);
    }

    SampleObservable.prototype.subscribeCore = function (o) {
      var state = {
        o: o,
        atEnd: false,
        value: null,
        hasValue: false,
        sourceSubscription: new SingleAssignmentDisposable()
      };

      state.sourceSubscription.setDisposable(this.source.subscribe(new SampleSourceObserver(state)));
      return new BinaryDisposable(
        state.sourceSubscription,
        this._sampler.subscribe(new SamplerObserver(state))
      );
    };

    return SampleObservable;
  }(ObservableBase));

  var SamplerObserver = (function(__super__) {
    inherits(SamplerObserver, __super__);
    function SamplerObserver(s) {
      this._s = s;
      __super__.call(this);
    }

    SamplerObserver.prototype._handleMessage = function () {
      if (this._s.hasValue) {
        this._s.hasValue = false;
        this._s.o.onNext(this._s.value);
      }
      this._s.atEnd && this._s.o.onCompleted();
    };

    SamplerObserver.prototype.next = function () { this._handleMessage(); };
    SamplerObserver.prototype.error = function (e) { this._s.onError(e); };
    SamplerObserver.prototype.completed = function () { this._handleMessage(); };

    return SamplerObserver;
  }(AbstractObserver));

  var SampleSourceObserver = (function(__super__) {
    inherits(SampleSourceObserver, __super__);
    function SampleSourceObserver(s) {
      this._s = s;
      __super__.call(this);
    }

    SampleSourceObserver.prototype.next = function (x) {
      this._s.hasValue = true;
      this._s.value = x;
    };
    SampleSourceObserver.prototype.error = function (e) { this._s.o.onError(e); };
    SampleSourceObserver.prototype.completed = function () {
      this._s.atEnd = true;
      this._s.sourceSubscription.dispose();
    };

    return SampleSourceObserver;
  }(AbstractObserver));

  /**
   *  Samples the observable sequence at each interval.
   *
   * @example
   *  1 - res = source.sample(sampleObservable); // Sampler tick sequence
   *  2 - res = source.sample(5000); // 5 seconds
   *  2 - res = source.sample(5000, Rx.Scheduler.timeout); // 5 seconds
   *
   * @param {Mixed} intervalOrSampler Interval at which to sample (specified as an integer denoting milliseconds) or Sampler Observable.
   * @param {Scheduler} [scheduler]  Scheduler to run the sampling timer on. If not specified, the timeout scheduler is used.
   * @returns {Observable} Sampled observable sequence.
   */
  observableProto.sample = function (intervalOrSampler, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return typeof intervalOrSampler === 'number' ?
      new SampleObservable(this, observableinterval(intervalOrSampler, scheduler)) :
      new SampleObservable(this, intervalOrSampler);
  };

  var TimeoutError = Rx.TimeoutError = function(message) {
    this.message = message || 'Timeout has occurred';
    this.name = 'TimeoutError';
    Error.call(this);
  };
  TimeoutError.prototype = Object.create(Error.prototype);

  function timeoutWithSelector(source, firstTimeout, timeoutDurationSelector, other) {
    if (isFunction(firstTimeout)) {
      other = timeoutDurationSelector;
      timeoutDurationSelector = firstTimeout;
      firstTimeout = observableNever();
    }
    Observable.isObservable(other) || (other = observableThrow(new TimeoutError()));
    return new AnonymousObservable(function (o) {
      var subscription = new SerialDisposable(),
        timer = new SerialDisposable(),
        original = new SingleAssignmentDisposable();

      subscription.setDisposable(original);

      var id = 0, switched = false;

      function setTimer(timeout) {
        var myId = id, d = new SingleAssignmentDisposable();

        function timerWins() {
          switched = (myId === id);
          return switched;
        }

        timer.setDisposable(d);
        d.setDisposable(timeout.subscribe(function () {
          timerWins() && subscription.setDisposable(other.subscribe(o));
          d.dispose();
        }, function (e) {
          timerWins() && o.onError(e);
        }, function () {
          timerWins() && subscription.setDisposable(other.subscribe(o));
        }));
      };

      setTimer(firstTimeout);

      function oWins() {
        var res = !switched;
        if (res) { id++; }
        return res;
      }

      original.setDisposable(source.subscribe(function (x) {
        if (oWins()) {
          o.onNext(x);
          var timeout = tryCatch(timeoutDurationSelector)(x);
          if (timeout === errorObj) { return o.onError(timeout.e); }
          setTimer(isPromise(timeout) ? observableFromPromise(timeout) : timeout);
        }
      }, function (e) {
        oWins() && o.onError(e);
      }, function () {
        oWins() && o.onCompleted();
      }));
      return new BinaryDisposable(subscription, timer);
    }, source);
  }

  function timeout(source, dueTime, other, scheduler) {
    if (isScheduler(other)) {
      scheduler = other;
      other = observableThrow(new TimeoutError());
    }
    if (other instanceof Error) { other = observableThrow(other); }
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    Observable.isObservable(other) || (other = observableThrow(new TimeoutError()));
    return new AnonymousObservable(function (o) {
      var id = 0,
        original = new SingleAssignmentDisposable(),
        subscription = new SerialDisposable(),
        switched = false,
        timer = new SerialDisposable();

      subscription.setDisposable(original);

      function createTimer() {
        var myId = id;
        timer.setDisposable(scheduler.scheduleFuture(null, dueTime, function () {
          switched = id === myId;
          if (switched) {
            isPromise(other) && (other = observableFromPromise(other));
            subscription.setDisposable(other.subscribe(o));
          }
        }));
      }

      createTimer();

      original.setDisposable(source.subscribe(function (x) {
        if (!switched) {
          id++;
          o.onNext(x);
          createTimer();
        }
      }, function (e) {
        if (!switched) {
          id++;
          o.onError(e);
        }
      }, function () {
        if (!switched) {
          id++;
          o.onCompleted();
        }
      }));
      return new BinaryDisposable(subscription, timer);
    }, source);
  }

  observableProto.timeout = function () {
    var firstArg = arguments[0];
    if (firstArg instanceof Date || typeof firstArg === 'number') {
      return timeout(this, firstArg, arguments[1], arguments[2]);
    } else if (Observable.isObservable(firstArg) || isFunction(firstArg)) {
      return timeoutWithSelector(this, firstArg, arguments[1], arguments[2]);
    } else {
      throw new Error('Invalid arguments');
    }
  };

  var GenerateAbsoluteObservable = (function (__super__) {
    inherits(GenerateAbsoluteObservable, __super__);
    function GenerateAbsoluteObservable(state, cndFn, itrFn, resFn, timeFn, s) {
      this._state = state;
      this._cndFn = cndFn;
      this._itrFn = itrFn;
      this._resFn = resFn;
      this._timeFn = timeFn;
      this._s = s;
      __super__.call(this);
    }

    function scheduleRecursive(state, recurse) {
      state.hasResult && state.o.onNext(state.result);

      if (state.first) {
        state.first = false;
      } else {
        state.newState = tryCatch(state.self._itrFn)(state.newState);
        if (state.newState === errorObj) { return state.o.onError(state.newState.e); }
      }
      state.hasResult = tryCatch(state.self._cndFn)(state.newState);
      if (state.hasResult === errorObj) { return state.o.onError(state.hasResult.e); }
      if (state.hasResult) {
        state.result = tryCatch(state.self._resFn)(state.newState);
        if (state.result === errorObj) { return state.o.onError(state.result.e); }
        var time = tryCatch(state.self._timeFn)(state.newState);
        if (time === errorObj) { return state.o.onError(time.e); }
        recurse(state, time);
      } else {
        state.o.onCompleted();
      }
    }

    GenerateAbsoluteObservable.prototype.subscribeCore = function (o) {
      var state = {
        o: o,
        self: this,
        newState: this._state,
        first: true,
        hasResult: false
      };
      return this._s.scheduleRecursiveFuture(state, new Date(this._s.now()), scheduleRecursive);
    };

    return GenerateAbsoluteObservable;
  }(ObservableBase));

  /**
   *  GenerateAbsolutes an observable sequence by iterating a state from an initial state until the condition fails.
   *
   * @example
   *  res = source.generateWithAbsoluteTime(0,
   *      function (x) { return return true; },
   *      function (x) { return x + 1; },
   *      function (x) { return x; },
   *      function (x) { return new Date(); }
   *  });
   *
   * @param {Mixed} initialState Initial state.
   * @param {Function} condition Condition to terminate generation (upon returning false).
   * @param {Function} iterate Iteration step function.
   * @param {Function} resultSelector Selector function for results produced in the sequence.
   * @param {Function} timeSelector Time selector function to control the speed of values being produced each iteration, returning Date values.
   * @param {Scheduler} [scheduler]  Scheduler on which to run the generator loop. If not specified, the timeout scheduler is used.
   * @returns {Observable} The generated sequence.
   */
  Observable.generateWithAbsoluteTime = function (initialState, condition, iterate, resultSelector, timeSelector, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new GenerateAbsoluteObservable(initialState, condition, iterate, resultSelector, timeSelector, scheduler);
  };

  var GenerateRelativeObservable = (function (__super__) {
    inherits(GenerateRelativeObservable, __super__);
    function GenerateRelativeObservable(state, cndFn, itrFn, resFn, timeFn, s) {
      this._state = state;
      this._cndFn = cndFn;
      this._itrFn = itrFn;
      this._resFn = resFn;
      this._timeFn = timeFn;
      this._s = s;
      __super__.call(this);
    }

    function scheduleRecursive(state, recurse) {
      state.hasResult && state.o.onNext(state.result);

      if (state.first) {
        state.first = false;
      } else {
        state.newState = tryCatch(state.self._itrFn)(state.newState);
        if (state.newState === errorObj) { return state.o.onError(state.newState.e); }
      }

      state.hasResult = tryCatch(state.self._cndFn)(state.newState);
      if (state.hasResult === errorObj) { return state.o.onError(state.hasResult.e); }
      if (state.hasResult) {
        state.result = tryCatch(state.self._resFn)(state.newState);
        if (state.result === errorObj) { return state.o.onError(state.result.e); }
        var time = tryCatch(state.self._timeFn)(state.newState);
        if (time === errorObj) { return state.o.onError(time.e); }
        recurse(state, time);
      } else {
        state.o.onCompleted();
      }
    }

    GenerateRelativeObservable.prototype.subscribeCore = function (o) {
      var state = {
        o: o,
        self: this,
        newState: this._state,
        first: true,
        hasResult: false
      };
      return this._s.scheduleRecursiveFuture(state, 0, scheduleRecursive);
    };

    return GenerateRelativeObservable;
  }(ObservableBase));

  /**
   *  Generates an observable sequence by iterating a state from an initial state until the condition fails.
   *
   * @example
   *  res = source.generateWithRelativeTime(0,
   *      function (x) { return return true; },
   *      function (x) { return x + 1; },
   *      function (x) { return x; },
   *      function (x) { return 500; }
   *  );
   *
   * @param {Mixed} initialState Initial state.
   * @param {Function} condition Condition to terminate generation (upon returning false).
   * @param {Function} iterate Iteration step function.
   * @param {Function} resultSelector Selector function for results produced in the sequence.
   * @param {Function} timeSelector Time selector function to control the speed of values being produced each iteration, returning integer values denoting milliseconds.
   * @param {Scheduler} [scheduler]  Scheduler on which to run the generator loop. If not specified, the timeout scheduler is used.
   * @returns {Observable} The generated sequence.
   */
  Observable.generateWithRelativeTime = function (initialState, condition, iterate, resultSelector, timeSelector, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new GenerateRelativeObservable(initialState, condition, iterate, resultSelector, timeSelector, scheduler);
  };

  var DelaySubscription = (function(__super__) {
    inherits(DelaySubscription, __super__);
    function DelaySubscription(source, dt, s) {
      this.source = source;
      this._dt = dt;
      this._s = s;
      __super__.call(this);
    }

    DelaySubscription.prototype.subscribeCore = function (o) {
      var d = new SerialDisposable();

      d.setDisposable(this._s.scheduleFuture([this.source, o, d], this._dt, scheduleMethod));

      return d;
    };

    function scheduleMethod(s, state) {
      var source = state[0], o = state[1], d = state[2];
      d.setDisposable(source.subscribe(o));
    }

    return DelaySubscription;
  }(ObservableBase));

  /**
   *  Time shifts the observable sequence by delaying the subscription with the specified relative time duration, using the specified scheduler to run timers.
   *
   * @example
   *  1 - res = source.delaySubscription(5000); // 5s
   *  2 - res = source.delaySubscription(5000, Rx.Scheduler.default); // 5 seconds
   *
   * @param {Number} dueTime Relative or absolute time shift of the subscription.
   * @param {Scheduler} [scheduler]  Scheduler to run the subscription delay timer on. If not specified, the timeout scheduler is used.
   * @returns {Observable} Time-shifted sequence.
   */
  observableProto.delaySubscription = function (dueTime, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new DelaySubscription(this, dueTime, scheduler);
  };

  var SkipLastWithTimeObservable = (function (__super__) {
    inherits(SkipLastWithTimeObservable, __super__);
    function SkipLastWithTimeObservable(source, d, s) {
      this.source = source;
      this._d = d;
      this._s = s;
      __super__.call(this);
    }

    SkipLastWithTimeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new SkipLastWithTimeObserver(o, this));
    };

    return SkipLastWithTimeObservable;
  }(ObservableBase));

  var SkipLastWithTimeObserver = (function (__super__) {
    inherits(SkipLastWithTimeObserver, __super__);

    function SkipLastWithTimeObserver(o, p) {
      this._o = o;
      this._s = p._s;
      this._d = p._d;
      this._q = [];
      __super__.call(this);
    }

    SkipLastWithTimeObserver.prototype.next = function (x) {
      var now = this._s.now();
      this._q.push({ interval: now, value: x });
      while (this._q.length > 0 && now - this._q[0].interval >= this._d) {
        this._o.onNext(this._q.shift().value);
      }
    };
    SkipLastWithTimeObserver.prototype.error = function (e) { this._o.onError(e); };
    SkipLastWithTimeObserver.prototype.completed = function () {
      var now = this._s.now();
      while (this._q.length > 0 && now - this._q[0].interval >= this._d) {
        this._o.onNext(this._q.shift().value);
      }
      this._o.onCompleted();
    };

    return SkipLastWithTimeObserver;
  }(AbstractObserver));

  /**
   *  Skips elements for the specified duration from the end of the observable source sequence, using the specified scheduler to run timers.
   * @description
   *  This operator accumulates a queue with a length enough to store elements received during the initial duration window.
   *  As more elements are received, elements older than the specified duration are taken from the queue and produced on the
   *  result sequence. This causes elements to be delayed with duration.
   * @param {Number} duration Duration for skipping elements from the end of the sequence.
   * @param {Scheduler} [scheduler]  Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout
   * @returns {Observable} An observable sequence with the elements skipped during the specified duration from the end of the source sequence.
   */
  observableProto.skipLastWithTime = function (duration, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new SkipLastWithTimeObservable(this, duration, scheduler);
  };

  var TakeLastWithTimeObservable = (function (__super__) {
    inherits(TakeLastWithTimeObservable, __super__);
    function TakeLastWithTimeObservable(source, d, s) {
      this.source = source;
      this._d = d;
      this._s = s;
      __super__.call(this);
    }

    TakeLastWithTimeObservable.prototype.subscribeCore = function (o) {
      return this.source.subscribe(new TakeLastWithTimeObserver(o, this._d, this._s));
    };

    return TakeLastWithTimeObservable;
  }(ObservableBase));

  var TakeLastWithTimeObserver = (function (__super__) {
    inherits(TakeLastWithTimeObserver, __super__);

    function TakeLastWithTimeObserver(o, d, s) {
      this._o = o;
      this._d = d;
      this._s = s;
      this._q = [];
      __super__.call(this);
    }

    TakeLastWithTimeObserver.prototype.next = function (x) {
      var now = this._s.now();
      this._q.push({ interval: now, value: x });
      while (this._q.length > 0 && now - this._q[0].interval >= this._d) {
        this._q.shift();
      }
    };
    TakeLastWithTimeObserver.prototype.error = function (e) { this._o.onError(e); };
    TakeLastWithTimeObserver.prototype.completed = function () {
      var now = this._s.now();
      while (this._q.length > 0) {
        var next = this._q.shift();
        if (now - next.interval <= this._d) { this._o.onNext(next.value); }
      }
      this._o.onCompleted();
    };

    return TakeLastWithTimeObserver;
  }(AbstractObserver));

  /**
   *  Returns elements within the specified duration from the end of the observable source sequence, using the specified schedulers to run timers and to drain the collected elements.
   * @description
   *  This operator accumulates a queue with a length enough to store elements received during the initial duration window.
   *  As more elements are received, elements older than the specified duration are taken from the queue and produced on the
   *  result sequence. This causes elements to be delayed with duration.
   * @param {Number} duration Duration for taking elements from the end of the sequence.
   * @param {Scheduler} [scheduler]  Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout.
   * @returns {Observable} An observable sequence with the elements taken during the specified duration from the end of the source sequence.
   */
  observableProto.takeLastWithTime = function (duration, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new TakeLastWithTimeObservable(this, duration, scheduler);
  };

  /**
   *  Returns an array with the elements within the specified duration from the end of the observable source sequence, using the specified scheduler to run timers.
   * @description
   *  This operator accumulates a queue with a length enough to store elements received during the initial duration window.
   *  As more elements are received, elements older than the specified duration are taken from the queue and produced on the
   *  result sequence. This causes elements to be delayed with duration.
   * @param {Number} duration Duration for taking elements from the end of the sequence.
   * @param {Scheduler} scheduler Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout.
   * @returns {Observable} An observable sequence containing a single array with the elements taken during the specified duration from the end of the source sequence.
   */
  observableProto.takeLastBufferWithTime = function (duration, scheduler) {
    var source = this;
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new AnonymousObservable(function (o) {
      var q = [];
      return source.subscribe(function (x) {
        var now = scheduler.now();
        q.push({ interval: now, value: x });
        while (q.length > 0 && now - q[0].interval >= duration) {
          q.shift();
        }
      }, function (e) { o.onError(e); }, function () {
        var now = scheduler.now(), res = [];
        while (q.length > 0) {
          var next = q.shift();
          now - next.interval <= duration && res.push(next.value);
        }
        o.onNext(res);
        o.onCompleted();
      });
    }, source);
  };

  var TakeWithTimeObservable = (function (__super__) {
    inherits(TakeWithTimeObservable, __super__);
    function TakeWithTimeObservable(source, d, s) {
      this.source = source;
      this._d = d;
      this._s = s;
      __super__.call(this);
    }

    function scheduleMethod(s, o) {
      o.onCompleted();
    }

    TakeWithTimeObservable.prototype.subscribeCore = function (o) {
      return new BinaryDisposable(
        this._s.scheduleFuture(o, this._d, scheduleMethod),
        this.source.subscribe(o)
      );
    };

    return TakeWithTimeObservable;
  }(ObservableBase));

  /**
   *  Takes elements for the specified duration from the start of the observable source sequence, using the specified scheduler to run timers.
   *
   * @example
   *  1 - res = source.takeWithTime(5000,  [optional scheduler]);
   * @description
   *  This operator accumulates a queue with a length enough to store elements received during the initial duration window.
   *  As more elements are received, elements older than the specified duration are taken from the queue and produced on the
   *  result sequence. This causes elements to be delayed with duration.
   * @param {Number} duration Duration for taking elements from the start of the sequence.
   * @param {Scheduler} scheduler Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout.
   * @returns {Observable} An observable sequence with the elements taken during the specified duration from the start of the source sequence.
   */
  observableProto.takeWithTime = function (duration, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new TakeWithTimeObservable(this, duration, scheduler);
  };

  var SkipWithTimeObservable = (function (__super__) {
    inherits(SkipWithTimeObservable, __super__);
    function SkipWithTimeObservable(source, d, s) {
      this.source = source;
      this._d = d;
      this._s = s;
      this._open = false;
      __super__.call(this);
    }

    function scheduleMethod(s, self) {
      self._open = true;
    }

    SkipWithTimeObservable.prototype.subscribeCore = function (o) {
      return new BinaryDisposable(
        this._s.scheduleFuture(this, this._d, scheduleMethod),
        this.source.subscribe(new SkipWithTimeObserver(o, this))
      );
    };

    return SkipWithTimeObservable;
  }(ObservableBase));

  var SkipWithTimeObserver = (function (__super__) {
    inherits(SkipWithTimeObserver, __super__);

    function SkipWithTimeObserver(o, p) {
      this._o = o;
      this._p = p;
      __super__.call(this);
    }

    SkipWithTimeObserver.prototype.next = function (x) { this._p._open && this._o.onNext(x); };
    SkipWithTimeObserver.prototype.error = function (e) { this._o.onError(e); };
    SkipWithTimeObserver.prototype.completed = function () { this._o.onCompleted(); };

    return SkipWithTimeObserver;
  }(AbstractObserver));

  /**
   *  Skips elements for the specified duration from the start of the observable source sequence, using the specified scheduler to run timers.
   * @description
   *  Specifying a zero value for duration doesn't guarantee no elements will be dropped from the start of the source sequence.
   *  This is a side-effect of the asynchrony introduced by the scheduler, where the action that causes callbacks from the source sequence to be forwarded
   *  may not execute immediately, despite the zero due time.
   *
   *  Errors produced by the source sequence are always forwarded to the result sequence, even if the error occurs before the duration.
   * @param {Number} duration Duration for skipping elements from the start of the sequence.
   * @param {Scheduler} scheduler Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout.
   * @returns {Observable} An observable sequence with the elements skipped during the specified duration from the start of the source sequence.
   */
  observableProto.skipWithTime = function (duration, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new SkipWithTimeObservable(this, duration, scheduler);
  };

  var SkipUntilWithTimeObservable = (function (__super__) {
    inherits(SkipUntilWithTimeObservable, __super__);
    function SkipUntilWithTimeObservable(source, startTime, scheduler) {
      this.source = source;
      this._st = startTime;
      this._s = scheduler;
      __super__.call(this);
    }

    function scheduleMethod(s, state) {
      state._open = true;
    }

    SkipUntilWithTimeObservable.prototype.subscribeCore = function (o) {
      this._open = false;
      return new BinaryDisposable(
        this._s.scheduleFuture(this, this._st, scheduleMethod),
        this.source.subscribe(new SkipUntilWithTimeObserver(o, this))
      );
    };

    return SkipUntilWithTimeObservable;
  }(ObservableBase));

  var SkipUntilWithTimeObserver = (function (__super__) {
    inherits(SkipUntilWithTimeObserver, __super__);

    function SkipUntilWithTimeObserver(o, p) {
      this._o = o;
      this._p = p;
      __super__.call(this);
    }

    SkipUntilWithTimeObserver.prototype.next = function (x) { this._p._open && this._o.onNext(x); };
    SkipUntilWithTimeObserver.prototype.error = function (e) { this._o.onError(e); };
    SkipUntilWithTimeObserver.prototype.completed = function () { this._o.onCompleted(); };

    return SkipUntilWithTimeObserver;
  }(AbstractObserver));


  /**
   *  Skips elements from the observable source sequence until the specified start time, using the specified scheduler to run timers.
   *  Errors produced by the source sequence are always forwarded to the result sequence, even if the error occurs before the start time.
   *
   * @examples
   *  1 - res = source.skipUntilWithTime(new Date(), [scheduler]);
   *  2 - res = source.skipUntilWithTime(5000, [scheduler]);
   * @param {Date|Number} startTime Time to start taking elements from the source sequence. If this value is less than or equal to Date(), no elements will be skipped.
   * @param {Scheduler} [scheduler] Scheduler to run the timer on. If not specified, defaults to Rx.Scheduler.timeout.
   * @returns {Observable} An observable sequence with the elements skipped until the specified start time.
   */
  observableProto.skipUntilWithTime = function (startTime, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    return new SkipUntilWithTimeObservable(this, startTime, scheduler);
  };

  /**
   *  Takes elements for the specified duration until the specified end time, using the specified scheduler to run timers.
   * @param {Number | Date} endTime Time to stop taking elements from the source sequence. If this value is less than or equal to new Date(), the result stream will complete immediately.
   * @param {Scheduler} [scheduler] Scheduler to run the timer on.
   * @returns {Observable} An observable sequence with the elements taken until the specified end time.
   */
  observableProto.takeUntilWithTime = function (endTime, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    var source = this;
    return new AnonymousObservable(function (o) {
      return new BinaryDisposable(
        scheduler.scheduleFuture(o, endTime, function (_, o) { o.onCompleted(); }),
        source.subscribe(o));
    }, source);
  };

  /**
   * Returns an Observable that emits only the first item emitted by the source Observable during sequential time windows of a specified duration.
   * @param {Number} windowDuration time to wait before emitting another item after emitting the last item
   * @param {Scheduler} [scheduler] the Scheduler to use internally to manage the timers that handle timeout for each item. If not provided, defaults to Scheduler.timeout.
   * @returns {Observable} An Observable that performs the throttle operation.
   */
  observableProto.throttle = function (windowDuration, scheduler) {
    isScheduler(scheduler) || (scheduler = defaultScheduler);
    var duration = +windowDuration || 0;
    if (duration <= 0) { throw new RangeError('windowDuration cannot be less or equal zero.'); }
    var source = this;
    return new AnonymousObservable(function (o) {
      var lastOnNext = 0;
      return source.subscribe(
        function (x) {
          var now = scheduler.now();
          if (lastOnNext === 0 || now - lastOnNext >= duration) {
            lastOnNext = now;
            o.onNext(x);
          }
        },function (e) { o.onError(e); }, function () { o.onCompleted(); }
      );
    }, source);
  };

  var TransduceObserver = (function (__super__) {
    inherits(TransduceObserver, __super__);
    function TransduceObserver(o, xform) {
      this._o = o;
      this._xform = xform;
      __super__.call(this);
    }

    TransduceObserver.prototype.next = function (x) {
      var res = tryCatch(this._xform['@@transducer/step']).call(this._xform, this._o, x);
      if (res === errorObj) { this._o.onError(res.e); }
    };

    TransduceObserver.prototype.error = function (e) { this._o.onError(e); };

    TransduceObserver.prototype.completed = function () {
      this._xform['@@transducer/result'](this._o);
    };

    return TransduceObserver;
  }(AbstractObserver));

  function transformForObserver(o) {
    return {
      '@@transducer/init': function() {
        return o;
      },
      '@@transducer/step': function(obs, input) {
        return obs.onNext(input);
      },
      '@@transducer/result': function(obs) {
        return obs.onCompleted();
      }
    };
  }

  /**
   * Executes a transducer to transform the observable sequence
   * @param {Transducer} transducer A transducer to execute
   * @returns {Observable} An Observable sequence containing the results from the transducer.
   */
  observableProto.transduce = function(transducer) {
    var source = this;
    return new AnonymousObservable(function(o) {
      var xform = transducer(transformForObserver(o));
      return source.subscribe(new TransduceObserver(o, xform));
    }, source);
  };

  var SwitchFirstObservable = (function (__super__) {
    inherits(SwitchFirstObservable, __super__);
    function SwitchFirstObservable(source) {
      this.source = source;
      __super__.call(this);
    }

    SwitchFirstObservable.prototype.subscribeCore = function (o) {
      var m = new SingleAssignmentDisposable(),
        g = new CompositeDisposable(),
        state = {
          hasCurrent: false,
          isStopped: false,
          o: o,
          g: g
        };

      g.add(m);
      m.setDisposable(this.source.subscribe(new SwitchFirstObserver(state)));
      return g;
    };

    return SwitchFirstObservable;
  }(ObservableBase));

  var SwitchFirstObserver = (function(__super__) {
    inherits(SwitchFirstObserver, __super__);
    function SwitchFirstObserver(state) {
      this._s = state;
      __super__.call(this);
    }

    SwitchFirstObserver.prototype.next = function (x) {
      if (!this._s.hasCurrent) {
        this._s.hasCurrent = true;
        isPromise(x) && (x = observableFromPromise(x));
        var inner = new SingleAssignmentDisposable();
        this._s.g.add(inner);
        inner.setDisposable(x.subscribe(new InnerObserver(this._s, inner)));
      }
    };

    SwitchFirstObserver.prototype.error = function (e) {
      this._s.o.onError(e);
    };

    SwitchFirstObserver.prototype.completed = function () {
      this._s.isStopped = true;
      !this._s.hasCurrent && this._s.g.length === 1 && this._s.o.onCompleted();
    };

    inherits(InnerObserver, __super__);
    function InnerObserver(state, inner) {
      this._s = state;
      this._i = inner;
      __super__.call(this);
    }

    InnerObserver.prototype.next = function (x) { this._s.o.onNext(x); };
    InnerObserver.prototype.error = function (e) { this._s.o.onError(e); };
    InnerObserver.prototype.completed = function () {
      this._s.g.remove(this._i);
      this._s.hasCurrent = false;
      this._s.isStopped && this._s.g.length === 1 && this._s.o.onCompleted();
    };

    return SwitchFirstObserver;
  }(AbstractObserver));

  /**
   * Performs a exclusive waiting for the first to finish before subscribing to another observable.
   * Observables that come in between subscriptions will be dropped on the floor.
   * @returns {Observable} A exclusive observable with only the results that happen when subscribed.
   */
  observableProto.switchFirst = function () {
    return new SwitchFirstObservable(this);
  };

observableProto.flatMapFirst = observableProto.exhaustMap = function(selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).switchFirst();
};

observableProto.flatMapWithMaxConcurrent = observableProto.flatMapMaxConcurrent = function(limit, selector, resultSelector, thisArg) {
    return new FlatMapObservable(this, selector, resultSelector, thisArg).merge(limit);
};

  /** Provides a set of extension methods for virtual time scheduling. */
  var VirtualTimeScheduler = Rx.VirtualTimeScheduler = (function (__super__) {
    inherits(VirtualTimeScheduler, __super__);

    /**
     * Creates a new virtual time scheduler with the specified initial clock value and absolute time comparer.
     *
     * @constructor
     * @param {Number} initialClock Initial value for the clock.
     * @param {Function} comparer Comparer to determine causality of events based on absolute time.
     */
    function VirtualTimeScheduler(initialClock, comparer) {
      this.clock = initialClock;
      this.comparer = comparer;
      this.isEnabled = false;
      this.queue = new PriorityQueue(1024);
      __super__.call(this);
    }

    var VirtualTimeSchedulerPrototype = VirtualTimeScheduler.prototype;

    VirtualTimeSchedulerPrototype.now = function () {
      return this.toAbsoluteTime(this.clock);
    };

    VirtualTimeSchedulerPrototype.schedule = function (state, action) {
      return this.scheduleAbsolute(state, this.clock, action);
    };

    VirtualTimeSchedulerPrototype.scheduleFuture = function (state, dueTime, action) {
      var dt = dueTime instanceof Date ?
        this.toRelativeTime(dueTime - this.now()) :
        this.toRelativeTime(dueTime);

      return this.scheduleRelative(state, dt, action);
    };

    /**
     * Adds a relative time value to an absolute time value.
     * @param {Number} absolute Absolute virtual time value.
     * @param {Number} relative Relative virtual time value to add.
     * @return {Number} Resulting absolute virtual time sum value.
     */
    VirtualTimeSchedulerPrototype.add = notImplemented;

    /**
     * Converts an absolute time to a number
     * @param {Any} The absolute time.
     * @returns {Number} The absolute time in ms
     */
    VirtualTimeSchedulerPrototype.toAbsoluteTime = notImplemented;

    /**
     * Converts the TimeSpan value to a relative virtual time value.
     * @param {Number} timeSpan TimeSpan value to convert.
     * @return {Number} Corresponding relative virtual time value.
     */
    VirtualTimeSchedulerPrototype.toRelativeTime = notImplemented;

    /**
     * Schedules a periodic piece of work by dynamically discovering the scheduler's capabilities. The periodic task will be emulated using recursive scheduling.
     * @param {Mixed} state Initial state passed to the action upon the first iteration.
     * @param {Number} period Period for running the work periodically.
     * @param {Function} action Action to be executed, potentially updating the state.
     * @returns {Disposable} The disposable object used to cancel the scheduled recurring action (best effort).
     */
    VirtualTimeSchedulerPrototype.schedulePeriodic = function (state, period, action) {
      var s = new SchedulePeriodicRecursive(this, state, period, action);
      return s.start();
    };

    /**
     * Schedules an action to be executed after dueTime.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Number} dueTime Relative time after which to execute the action.
     * @param {Function} action Action to be executed.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    VirtualTimeSchedulerPrototype.scheduleRelative = function (state, dueTime, action) {
      var runAt = this.add(this.clock, dueTime);
      return this.scheduleAbsolute(state, runAt, action);
    };

    /**
     * Starts the virtual time scheduler.
     */
    VirtualTimeSchedulerPrototype.start = function () {
      if (!this.isEnabled) {
        this.isEnabled = true;
        do {
          var next = this.getNext();
          if (next !== null) {
            this.comparer(next.dueTime, this.clock) > 0 && (this.clock = next.dueTime);
            next.invoke();
          } else {
            this.isEnabled = false;
          }
        } while (this.isEnabled);
      }
    };

    /**
     * Stops the virtual time scheduler.
     */
    VirtualTimeSchedulerPrototype.stop = function () {
      this.isEnabled = false;
    };

    /**
     * Advances the scheduler's clock to the specified time, running all work till that point.
     * @param {Number} time Absolute time to advance the scheduler's clock to.
     */
    VirtualTimeSchedulerPrototype.advanceTo = function (time) {
      var dueToClock = this.comparer(this.clock, time);
      if (this.comparer(this.clock, time) > 0) { throw new ArgumentOutOfRangeError(); }
      if (dueToClock === 0) { return; }
      if (!this.isEnabled) {
        this.isEnabled = true;
        do {
          var next = this.getNext();
          if (next !== null && this.comparer(next.dueTime, time) <= 0) {
            this.comparer(next.dueTime, this.clock) > 0 && (this.clock = next.dueTime);
            next.invoke();
          } else {
            this.isEnabled = false;
          }
        } while (this.isEnabled);
        this.clock = time;
      }
    };

    /**
     * Advances the scheduler's clock by the specified relative time, running all work scheduled for that timespan.
     * @param {Number} time Relative time to advance the scheduler's clock by.
     */
    VirtualTimeSchedulerPrototype.advanceBy = function (time) {
      var dt = this.add(this.clock, time),
          dueToClock = this.comparer(this.clock, dt);
      if (dueToClock > 0) { throw new ArgumentOutOfRangeError(); }
      if (dueToClock === 0) {  return; }

      this.advanceTo(dt);
    };

    /**
     * Advances the scheduler's clock by the specified relative time.
     * @param {Number} time Relative time to advance the scheduler's clock by.
     */
    VirtualTimeSchedulerPrototype.sleep = function (time) {
      var dt = this.add(this.clock, time);
      if (this.comparer(this.clock, dt) >= 0) { throw new ArgumentOutOfRangeError(); }

      this.clock = dt;
    };

    /**
     * Gets the next scheduled item to be executed.
     * @returns {ScheduledItem} The next scheduled item.
     */
    VirtualTimeSchedulerPrototype.getNext = function () {
      while (this.queue.length > 0) {
        var next = this.queue.peek();
        if (next.isCancelled()) {
          this.queue.dequeue();
        } else {
          return next;
        }
      }
      return null;
    };

    /**
     * Schedules an action to be executed at dueTime.
     * @param {Mixed} state State passed to the action to be executed.
     * @param {Number} dueTime Absolute time at which to execute the action.
     * @param {Function} action Action to be executed.
     * @returns {Disposable} The disposable object used to cancel the scheduled action (best effort).
     */
    VirtualTimeSchedulerPrototype.scheduleAbsolute = function (state, dueTime, action) {
      var self = this;

      function run(scheduler, state1) {
        self.queue.remove(si);
        return action(scheduler, state1);
      }

      var si = new ScheduledItem(this, state, run, dueTime, this.comparer);
      this.queue.enqueue(si);

      return si.disposable;
    };

    return VirtualTimeScheduler;
  }(Scheduler));

  /** Provides a virtual time scheduler that uses Date for absolute time and number for relative time. */
  Rx.HistoricalScheduler = (function (__super__) {
    inherits(HistoricalScheduler, __super__);

    /**
     * Creates a new historical scheduler with the specified initial clock value.
     * @constructor
     * @param {Number} initialClock Initial value for the clock.
     * @param {Function} comparer Comparer to determine causality of events based on absolute time.
     */
    function HistoricalScheduler(initialClock, comparer) {
      var clock = initialClock == null ? 0 : initialClock;
      var cmp = comparer || defaultSubComparer;
      __super__.call(this, clock, cmp);
    }

    var HistoricalSchedulerProto = HistoricalScheduler.prototype;

    /**
     * Adds a relative time value to an absolute time value.
     * @param {Number} absolute Absolute virtual time value.
     * @param {Number} relative Relative virtual time value to add.
     * @return {Number} Resulting absolute virtual time sum value.
     */
    HistoricalSchedulerProto.add = function (absolute, relative) {
      return absolute + relative;
    };

    HistoricalSchedulerProto.toAbsoluteTime = function (absolute) {
      return new Date(absolute).getTime();
    };

    /**
     * Converts the TimeSpan value to a relative virtual time value.
     * @memberOf HistoricalScheduler
     * @param {Number} timeSpan TimeSpan value to convert.
     * @return {Number} Corresponding relative virtual time value.
     */
    HistoricalSchedulerProto.toRelativeTime = function (timeSpan) {
      return timeSpan;
    };

    return HistoricalScheduler;
  }(Rx.VirtualTimeScheduler));

function OnNextPredicate(predicate) {
    this.predicate = predicate;
}

OnNextPredicate.prototype.equals = function (other) {
  if (other === this) { return true; }
  if (other == null) { return false; }
  if (other.kind !== 'N') { return false; }
  return this.predicate(other.value);
};

function OnErrorPredicate(predicate) {
  this.predicate = predicate;
}

OnErrorPredicate.prototype.equals = function (other) {
  if (other === this) { return true; }
  if (other == null) { return false; }
  if (other.kind !== 'E') { return false; }
  return this.predicate(other.error);
};

var ReactiveTest = Rx.ReactiveTest = {
  /** Default virtual time used for creation of observable sequences in unit tests. */
  created: 100,
  /** Default virtual time used to subscribe to observable sequences in unit tests. */
  subscribed: 200,
  /** Default virtual time used to dispose subscriptions in unit tests. */
  disposed: 1000,

  /**
   * Factory method for an OnNext notification record at a given time with a given value or a predicate function.
   *
   * 1 - ReactiveTest.onNext(200, 42);
   * 2 - ReactiveTest.onNext(200, function (x) { return x.length == 2; });
   *
   * @param ticks Recorded virtual time the OnNext notification occurs.
   * @param value Recorded value stored in the OnNext notification or a predicate.
   * @return Recorded OnNext notification.
   */
  onNext: function (ticks, value) {
    return typeof value === 'function' ?
      new Recorded(ticks, new OnNextPredicate(value)) :
      new Recorded(ticks, Notification.createOnNext(value));
  },
  /**
   * Factory method for an OnError notification record at a given time with a given error.
   *
   * 1 - ReactiveTest.onNext(200, new Error('error'));
   * 2 - ReactiveTest.onNext(200, function (e) { return e.message === 'error'; });
   *
   * @param ticks Recorded virtual time the OnError notification occurs.
   * @param exception Recorded exception stored in the OnError notification.
   * @return Recorded OnError notification.
   */
  onError: function (ticks, error) {
    return typeof error === 'function' ?
      new Recorded(ticks, new OnErrorPredicate(error)) :
      new Recorded(ticks, Notification.createOnError(error));
  },
  /**
   * Factory method for an OnCompleted notification record at a given time.
   *
   * @param ticks Recorded virtual time the OnCompleted notification occurs.
   * @return Recorded OnCompleted notification.
   */
  onCompleted: function (ticks) {
    return new Recorded(ticks, Notification.createOnCompleted());
  },
  /**
   * Factory method for a subscription record based on a given subscription and disposal time.
   *
   * @param start Virtual time indicating when the subscription was created.
   * @param end Virtual time indicating when the subscription was disposed.
   * @return Subscription object.
   */
  subscribe: function (start, end) {
    return new Subscription(start, end);
  }
};

  /**
   * Creates a new object recording the production of the specified value at the given virtual time.
   *
   * @constructor
   * @param {Number} time Virtual time the value was produced on.
   * @param {Mixed} value Value that was produced.
   * @param {Function} comparer An optional comparer.
   */
  var Recorded = Rx.Recorded = function (time, value, comparer) {
    this.time = time;
    this.value = value;
    this.comparer = comparer || defaultComparer;
  };

  /**
   * Checks whether the given recorded object is equal to the current instance.
   *
   * @param {Recorded} other Recorded object to check for equality.
   * @returns {Boolean} true if both objects are equal; false otherwise.
   */
  Recorded.prototype.equals = function (other) {
    return this.time === other.time && this.comparer(this.value, other.value);
  };

  /**
   * Returns a string representation of the current Recorded value.
   *
   * @returns {String} String representation of the current Recorded value.
   */
  Recorded.prototype.toString = function () {
    return this.value.toString() + '@' + this.time;
  };

  /**
   * Creates a new subscription object with the given virtual subscription and unsubscription time.
   *
   * @constructor
   * @param {Number} subscribe Virtual time at which the subscription occurred.
   * @param {Number} unsubscribe Virtual time at which the unsubscription occurred.
   */
  var Subscription = Rx.Subscription = function (start, end) {
    this.subscribe = start;
    this.unsubscribe = end || Number.MAX_VALUE;
  };

  /**
   * Checks whether the given subscription is equal to the current instance.
   * @param other Subscription object to check for equality.
   * @returns {Boolean} true if both objects are equal; false otherwise.
   */
  Subscription.prototype.equals = function (other) {
    return this.subscribe === other.subscribe && this.unsubscribe === other.unsubscribe;
  };

  /**
   * Returns a string representation of the current Subscription value.
   * @returns {String} String representation of the current Subscription value.
   */
  Subscription.prototype.toString = function () {
    return '(' + this.subscribe + ', ' + (this.unsubscribe === Number.MAX_VALUE ? 'Infinite' : this.unsubscribe) + ')';
  };

  var MockDisposable = Rx.MockDisposable = function (scheduler) {
    this.scheduler = scheduler;
    this.disposes = [];
    this.disposes.push(this.scheduler.clock);
  };

  MockDisposable.prototype.dispose = function () {
    this.disposes.push(this.scheduler.clock);
  };

  var MockObserver = (function (__super__) {
    inherits(MockObserver, __super__);

    function MockObserver(scheduler) {
      __super__.call(this);
      this.scheduler = scheduler;
      this.messages = [];
    }

    var MockObserverPrototype = MockObserver.prototype;

    MockObserverPrototype.onNext = function (value) {
      this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnNext(value)));
    };

    MockObserverPrototype.onError = function (e) {
      this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnError(e)));
    };

    MockObserverPrototype.onCompleted = function () {
      this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnCompleted()));
    };

    return MockObserver;
  })(Observer);

  function MockPromise(scheduler, messages) {
    var self = this;
    this.scheduler = scheduler;
    this.messages = messages;
    this.subscriptions = [];
    this.observers = [];
    for (var i = 0, len = this.messages.length; i < len; i++) {
      var message = this.messages[i],
          notification = message.value;
      (function (innerNotification) {
        scheduler.scheduleAbsolute(null, message.time, function () {
          var obs = self.observers.slice(0);

          for (var j = 0, jLen = obs.length; j < jLen; j++) {
            innerNotification.accept(obs[j]);
          }
          return disposableEmpty;
        });
      })(notification);
    }
  }

  MockPromise.prototype.then = function (onResolved, onRejected) {
    var self = this;

    this.subscriptions.push(new Subscription(this.scheduler.clock));
    var index = this.subscriptions.length - 1;

    var newPromise;

    var observer = Rx.Observer.create(
      function (x) {
        var retValue = onResolved(x);
        if (retValue && typeof retValue.then === 'function') {
          newPromise = retValue;
        } else {
          var ticks = self.scheduler.clock;
          newPromise = new MockPromise(self.scheduler, [Rx.ReactiveTest.onNext(ticks, undefined), Rx.ReactiveTest.onCompleted(ticks)]);
        }
        var idx = self.observers.indexOf(observer);
        self.observers.splice(idx, 1);
        self.subscriptions[index] = new Subscription(self.subscriptions[index].subscribe, self.scheduler.clock);
      },
      function (err) {
        onRejected(err);
        var idx = self.observers.indexOf(observer);
        self.observers.splice(idx, 1);
        self.subscriptions[index] = new Subscription(self.subscriptions[index].subscribe, self.scheduler.clock);
      }
    );
    this.observers.push(observer);

    return newPromise || new MockPromise(this.scheduler, this.messages);
  };

  var HotObservable = (function (__super__) {
    inherits(HotObservable, __super__);

    function HotObservable(scheduler, messages) {
      __super__.call(this);
      var message, notification, observable = this;
      this.scheduler = scheduler;
      this.messages = messages;
      this.subscriptions = [];
      this.observers = [];
      for (var i = 0, len = this.messages.length; i < len; i++) {
        message = this.messages[i];
        notification = message.value;
        (function (innerNotification) {
          scheduler.scheduleAbsolute(null, message.time, function () {
            var obs = observable.observers.slice(0);

            for (var j = 0, jLen = obs.length; j < jLen; j++) {
              innerNotification.accept(obs[j]);
            }
            return disposableEmpty;
          });
        })(notification);
      }
    }

    HotObservable.prototype._subscribe = function (o) {
      var observable = this;
      this.observers.push(o);
      this.subscriptions.push(new Subscription(this.scheduler.clock));
      var index = this.subscriptions.length - 1;
      return disposableCreate(function () {
        var idx = observable.observers.indexOf(o);
        observable.observers.splice(idx, 1);
        observable.subscriptions[index] = new Subscription(observable.subscriptions[index].subscribe, observable.scheduler.clock);
      });
    };

    return HotObservable;
  })(Observable);

  var ColdObservable = (function (__super__) {
    inherits(ColdObservable, __super__);

    function ColdObservable(scheduler, messages) {
      __super__.call(this);
      this.scheduler = scheduler;
      this.messages = messages;
      this.subscriptions = [];
    }

    ColdObservable.prototype._subscribe = function (o) {
      var message, notification, observable = this;
      this.subscriptions.push(new Subscription(this.scheduler.clock));
      var index = this.subscriptions.length - 1;
      var d = new CompositeDisposable();
      for (var i = 0, len = this.messages.length; i < len; i++) {
        message = this.messages[i];
        notification = message.value;
        (function (innerNotification) {
          d.add(observable.scheduler.scheduleRelative(null, message.time, function () {
            innerNotification.accept(o);
            return disposableEmpty;
          }));
        })(notification);
      }
      return disposableCreate(function () {
        observable.subscriptions[index] = new Subscription(observable.subscriptions[index].subscribe, observable.scheduler.clock);
        d.dispose();
      });
    };

    return ColdObservable;
  })(Observable);

  /** Virtual time scheduler used for testing applications and libraries built using Reactive Extensions. */
  Rx.TestScheduler = (function (__super__) {
    inherits(TestScheduler, __super__);

    function baseComparer(x, y) {
      return x > y ? 1 : (x < y ? -1 : 0);
    }

    function TestScheduler() {
      __super__.call(this, 0, baseComparer);
    }

    /**
     * Schedules an action to be executed at the specified virtual time.
     *
     * @param state State passed to the action to be executed.
     * @param dueTime Absolute virtual time at which to execute the action.
     * @param action Action to be executed.
     * @return Disposable object used to cancel the scheduled action (best effort).
     */
    TestScheduler.prototype.scheduleAbsolute = function (state, dueTime, action) {
      dueTime <= this.clock && (dueTime = this.clock + 1);
      return __super__.prototype.scheduleAbsolute.call(this, state, dueTime, action);
    };
    /**
     * Adds a relative virtual time to an absolute virtual time value.
     *
     * @param absolute Absolute virtual time value.
     * @param relative Relative virtual time value to add.
     * @return Resulting absolute virtual time sum value.
     */
    TestScheduler.prototype.add = function (absolute, relative) {
      return absolute + relative;
    };
    /**
     * Converts the absolute virtual time value to a DateTimeOffset value.
     *
     * @param absolute Absolute virtual time value to convert.
     * @return Corresponding DateTimeOffset value.
     */
    TestScheduler.prototype.toAbsoluteTime = function (absolute) {
      return new Date(absolute).getTime();
    };
    /**
     * Converts the TimeSpan value to a relative virtual time value.
     *
     * @param timeSpan TimeSpan value to convert.
     * @return Corresponding relative virtual time value.
     */
    TestScheduler.prototype.toRelativeTime = function (timeSpan) {
      return timeSpan;
    };
    /**
     * Starts the test scheduler and uses the specified virtual times to invoke the factory function, subscribe to the resulting sequence, and dispose the subscription.
     *
     * @param create Factory method to create an observable sequence.
     * @param created Virtual time at which to invoke the factory to create an observable sequence.
     * @param subscribed Virtual time at which to subscribe to the created observable sequence.
     * @param disposed Virtual time at which to dispose the subscription.
     * @return Observer with timestamped recordings of notification messages that were received during the virtual time window when the subscription to the source sequence was active.
     */
    TestScheduler.prototype.startScheduler = function (createFn, settings) {
      settings || (settings = {});
      settings.created == null && (settings.created = ReactiveTest.created);
      settings.subscribed == null && (settings.subscribed = ReactiveTest.subscribed);
      settings.disposed == null && (settings.disposed = ReactiveTest.disposed);

      var observer = this.createObserver(), source, subscription;

      this.scheduleAbsolute(null, settings.created, function () {
        source = createFn();
        return disposableEmpty;
      });

      this.scheduleAbsolute(null, settings.subscribed, function () {
        subscription = source.subscribe(observer);
        return disposableEmpty;
      });

      this.scheduleAbsolute(null, settings.disposed, function () {
        subscription.dispose();
        return disposableEmpty;
      });

      this.start();

      return observer;
    };

    /**
     * Creates a hot observable using the specified timestamped notification messages either as an array or arguments.
     * @param messages Notifications to surface through the created sequence at their specified absolute virtual times.
     * @return Hot observable sequence that can be used to assert the timing of subscriptions and notifications.
     */
    TestScheduler.prototype.createHotObservable = function () {
      var len = arguments.length, args;
      if (Array.isArray(arguments[0])) {
        args = arguments[0];
      } else {
        args = new Array(len);
        for (var i = 0; i < len; i++) { args[i] = arguments[i]; }
      }
      return new HotObservable(this, args);
    };

    /**
     * Creates a cold observable using the specified timestamped notification messages either as an array or arguments.
     * @param messages Notifications to surface through the created sequence at their specified virtual time offsets from the sequence subscription time.
     * @return Cold observable sequence that can be used to assert the timing of subscriptions and notifications.
     */
    TestScheduler.prototype.createColdObservable = function () {
      var len = arguments.length, args;
      if (Array.isArray(arguments[0])) {
        args = arguments[0];
      } else {
        args = new Array(len);
        for (var i = 0; i < len; i++) { args[i] = arguments[i]; }
      }
      return new ColdObservable(this, args);
    };

    /**
     * Creates a resolved promise with the given value and ticks
     * @param {Number} ticks The absolute time of the resolution.
     * @param {Any} value The value to yield at the given tick.
     * @returns {MockPromise} A mock Promise which fulfills with the given value.
     */
    TestScheduler.prototype.createResolvedPromise = function (ticks, value) {
      return new MockPromise(this, [Rx.ReactiveTest.onNext(ticks, value), Rx.ReactiveTest.onCompleted(ticks)]);
    };

    /**
     * Creates a rejected promise with the given reason and ticks
     * @param {Number} ticks The absolute time of the resolution.
     * @param {Any} reason The reason for rejection to yield at the given tick.
     * @returns {MockPromise} A mock Promise which rejects with the given reason.
     */
    TestScheduler.prototype.createRejectedPromise = function (ticks, reason) {
      return new MockPromise(this, [Rx.ReactiveTest.onError(ticks, reason)]);
    };

    /**
     * Creates an observer that records received notification messages and timestamps those.
     * @return Observer that can be used to assert the timing of received notifications.
     */
    TestScheduler.prototype.createObserver = function () {
      return new MockObserver(this);
    };

    return TestScheduler;
  })(VirtualTimeScheduler);

  var AnonymousObservable = Rx.AnonymousObservable = (function (__super__) {
    inherits(AnonymousObservable, __super__);

    // Fix subscriber to check for undefined or function returned to decorate as Disposable
    function fixSubscriber(subscriber) {
      return subscriber && isFunction(subscriber.dispose) ? subscriber :
        isFunction(subscriber) ? disposableCreate(subscriber) : disposableEmpty;
    }

    function setDisposable(s, state) {
      var ado = state[0], self = state[1];
      var sub = tryCatch(self.__subscribe).call(self, ado);
      if (sub === errorObj && !ado.fail(errorObj.e)) { thrower(errorObj.e); }
      ado.setDisposable(fixSubscriber(sub));
    }

    function AnonymousObservable(subscribe, parent) {
      this.source = parent;
      this.__subscribe = subscribe;
      __super__.call(this);
    }

    AnonymousObservable.prototype._subscribe = function (o) {
      var ado = new AutoDetachObserver(o), state = [ado, this];

      if (currentThreadScheduler.scheduleRequired()) {
        currentThreadScheduler.schedule(state, setDisposable);
      } else {
        setDisposable(null, state);
      }
      return ado;
    };

    return AnonymousObservable;

  }(Observable));

  var AutoDetachObserver = (function (__super__) {
    inherits(AutoDetachObserver, __super__);

    function AutoDetachObserver(observer) {
      __super__.call(this);
      this.observer = observer;
      this.m = new SingleAssignmentDisposable();
    }

    var AutoDetachObserverPrototype = AutoDetachObserver.prototype;

    AutoDetachObserverPrototype.next = function (value) {
      var result = tryCatch(this.observer.onNext).call(this.observer, value);
      if (result === errorObj) {
        this.dispose();
        thrower(result.e);
      }
    };

    AutoDetachObserverPrototype.error = function (err) {
      var result = tryCatch(this.observer.onError).call(this.observer, err);
      this.dispose();
      result === errorObj && thrower(result.e);
    };

    AutoDetachObserverPrototype.completed = function () {
      var result = tryCatch(this.observer.onCompleted).call(this.observer);
      this.dispose();
      result === errorObj && thrower(result.e);
    };

    AutoDetachObserverPrototype.setDisposable = function (value) { this.m.setDisposable(value); };
    AutoDetachObserverPrototype.getDisposable = function () { return this.m.getDisposable(); };

    AutoDetachObserverPrototype.dispose = function () {
      __super__.prototype.dispose.call(this);
      this.m.dispose();
    };

    return AutoDetachObserver;
  }(AbstractObserver));

  var UnderlyingObservable = (function (__super__) {
    inherits(UnderlyingObservable, __super__);
    function UnderlyingObservable(m, u) {
      this._m = m;
      this._u = u;
      __super__.call(this);
    }

    UnderlyingObservable.prototype.subscribeCore = function (o) {
      return new BinaryDisposable(this._m.getDisposable(), this._u.subscribe(o));
    };

    return UnderlyingObservable;
  }(ObservableBase));

  var GroupedObservable = (function (__super__) {
    inherits(GroupedObservable, __super__);
    function GroupedObservable(key, underlyingObservable, mergedDisposable) {
      __super__.call(this);
      this.key = key;
      this.underlyingObservable = !mergedDisposable ?
        underlyingObservable :
        new UnderlyingObservable(mergedDisposable, underlyingObservable);
    }

    GroupedObservable.prototype._subscribe = function (o) {
      return this.underlyingObservable.subscribe(o);
    };

    return GroupedObservable;
  }(Observable));

  /**
   *  Represents an object that is both an observable sequence as well as an observer.
   *  Each notification is broadcasted to all subscribed observers.
   */
  var Subject = Rx.Subject = (function (__super__) {
    inherits(Subject, __super__);
    function Subject() {
      __super__.call(this);
      this.isDisposed = false;
      this.isStopped = false;
      this.observers = [];
      this.hasError = false;
    }

    addProperties(Subject.prototype, Observer.prototype, {
      _subscribe: function (o) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.observers.push(o);
          return new InnerSubscription(this, o);
        }
        if (this.hasError) {
          o.onError(this.error);
          return disposableEmpty;
        }
        o.onCompleted();
        return disposableEmpty;
      },
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { checkDisposed(this); return this.observers.length > 0; },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onCompleted();
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          this.error = error;
          this.hasError = true;
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onError(error);
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (!this.isStopped) {
          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onNext(value);
          }
        }
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
      }
    });

    /**
     * Creates a subject from the specified observer and observable.
     * @param {Observer} observer The observer used to send messages to the subject.
     * @param {Observable} observable The observable used to subscribe to messages sent from the subject.
     * @returns {Subject} Subject implemented using the given observer and observable.
     */
    Subject.create = function (observer, observable) {
      return new AnonymousSubject(observer, observable);
    };

    return Subject;
  }(Observable));

  /**
   *  Represents the result of an asynchronous operation.
   *  The last value before the OnCompleted notification, or the error received through OnError, is sent to all subscribed observers.
   */
  var AsyncSubject = Rx.AsyncSubject = (function (__super__) {
    inherits(AsyncSubject, __super__);

    /**
     * Creates a subject that can only receive one value and that value is cached for all future observations.
     * @constructor
     */
    function AsyncSubject() {
      __super__.call(this);
      this.isDisposed = false;
      this.isStopped = false;
      this.hasValue = false;
      this.observers = [];
      this.hasError = false;
    }

    addProperties(AsyncSubject.prototype, Observer.prototype, {
      _subscribe: function (o) {
        checkDisposed(this);

        if (!this.isStopped) {
          this.observers.push(o);
          return new InnerSubscription(this, o);
        }

        if (this.hasError) {
          o.onError(this.error);
        } else if (this.hasValue) {
          o.onNext(this.value);
          o.onCompleted();
        } else {
          o.onCompleted();
        }

        return disposableEmpty;
      },
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { checkDisposed(this); return this.observers.length > 0; },
      /**
       * Notifies all subscribed observers about the end of the sequence, also causing the last received value to be sent out (if any).
       */
      onCompleted: function () {
        var i, len;
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          var os = cloneArray(this.observers), len = os.length;

          if (this.hasValue) {
            for (i = 0; i < len; i++) {
              var o = os[i];
              o.onNext(this.value);
              o.onCompleted();
            }
          } else {
            for (i = 0; i < len; i++) {
              os[i].onCompleted();
            }
          }

          this.observers.length = 0;
        }
      },
      /**
       * Notifies all subscribed observers about the error.
       * @param {Mixed} error The Error to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.isStopped = true;
          this.hasError = true;
          this.error = error;

          for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
            os[i].onError(error);
          }

          this.observers.length = 0;
        }
      },
      /**
       * Sends a value to the subject. The last value received before successful termination will be sent to all subscribed and future observers.
       * @param {Mixed} value The value to store in the subject.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.value = value;
        this.hasValue = true;
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
        this.error = null;
        this.value = null;
      }
    });

    return AsyncSubject;
  }(Observable));

  /**
   *  Represents a value that changes over time.
   *  Observers can subscribe to the subject to receive the last (or initial) value and all subsequent notifications.
   */
  var BehaviorSubject = Rx.BehaviorSubject = (function (__super__) {
    inherits(BehaviorSubject, __super__);
    function BehaviorSubject(value) {
      __super__.call(this);
      this.value = value;
      this.observers = [];
      this.isDisposed = false;
      this.isStopped = false;
      this.hasError = false;
    }

    addProperties(BehaviorSubject.prototype, Observer.prototype, {
      _subscribe: function (o) {
        checkDisposed(this);
        if (!this.isStopped) {
          this.observers.push(o);
          o.onNext(this.value);
          return new InnerSubscription(this, o);
        }
        if (this.hasError) {
          o.onError(this.error);
        } else {
          o.onCompleted();
        }
        return disposableEmpty;
      },
      /**
       * Gets the current value or throws an exception.
       * Value is frozen after onCompleted is called.
       * After onError is called always throws the specified exception.
       * An exception is always thrown after dispose is called.
       * @returns {Mixed} The initial value passed to the constructor until onNext is called; after which, the last value passed to onNext.
       */
      getValue: function () {
        checkDisposed(this);
        if (this.hasError) { thrower(this.error); }
        return this.value;
      },
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { checkDisposed(this); return this.observers.length > 0; },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onCompleted();
        }

        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        this.hasError = true;
        this.error = error;

        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onError(error);
        }

        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.value = value;
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          os[i].onNext(value);
        }
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
        this.value = null;
        this.error = null;
      }
    });

    return BehaviorSubject;
  }(Observable));

  /**
   * Represents an object that is both an observable sequence as well as an observer.
   * Each notification is broadcasted to all subscribed and future observers, subject to buffer trimming policies.
   */
  var ReplaySubject = Rx.ReplaySubject = (function (__super__) {

    var maxSafeInteger = Math.pow(2, 53) - 1;

    function createRemovableDisposable(subject, observer) {
      return disposableCreate(function () {
        observer.dispose();
        !subject.isDisposed && subject.observers.splice(subject.observers.indexOf(observer), 1);
      });
    }

    inherits(ReplaySubject, __super__);

    /**
     *  Initializes a new instance of the ReplaySubject class with the specified buffer size, window size and scheduler.
     *  @param {Number} [bufferSize] Maximum element count of the replay buffer.
     *  @param {Number} [windowSize] Maximum time length of the replay buffer.
     *  @param {Scheduler} [scheduler] Scheduler the observers are invoked on.
     */
    function ReplaySubject(bufferSize, windowSize, scheduler) {
      this.bufferSize = bufferSize == null ? maxSafeInteger : bufferSize;
      this.windowSize = windowSize == null ? maxSafeInteger : windowSize;
      this.scheduler = scheduler || currentThreadScheduler;
      this.q = [];
      this.observers = [];
      this.isStopped = false;
      this.isDisposed = false;
      this.hasError = false;
      this.error = null;
      __super__.call(this);
    }

    addProperties(ReplaySubject.prototype, Observer.prototype, {
      _subscribe: function (o) {
        checkDisposed(this);
        var so = new ScheduledObserver(this.scheduler, o), subscription = createRemovableDisposable(this, so);

        this._trim(this.scheduler.now());
        this.observers.push(so);

        for (var i = 0, len = this.q.length; i < len; i++) {
          so.onNext(this.q[i].value);
        }

        if (this.hasError) {
          so.onError(this.error);
        } else if (this.isStopped) {
          so.onCompleted();
        }

        so.ensureActive();
        return subscription;
      },
      /**
       * Indicates whether the subject has observers subscribed to it.
       * @returns {Boolean} Indicates whether the subject has observers subscribed to it.
       */
      hasObservers: function () { checkDisposed(this); return this.observers.length > 0; },
      _trim: function (now) {
        while (this.q.length > this.bufferSize) {
          this.q.shift();
        }
        while (this.q.length > 0 && (now - this.q[0].interval) > this.windowSize) {
          this.q.shift();
        }
      },
      /**
       * Notifies all subscribed observers about the arrival of the specified element in the sequence.
       * @param {Mixed} value The value to send to all observers.
       */
      onNext: function (value) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        var now = this.scheduler.now();
        this.q.push({ interval: now, value: value });
        this._trim(now);

        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onNext(value);
          observer.ensureActive();
        }
      },
      /**
       * Notifies all subscribed observers about the exception.
       * @param {Mixed} error The exception to send to all observers.
       */
      onError: function (error) {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        this.error = error;
        this.hasError = true;
        var now = this.scheduler.now();
        this._trim(now);
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onError(error);
          observer.ensureActive();
        }
        this.observers.length = 0;
      },
      /**
       * Notifies all subscribed observers about the end of the sequence.
       */
      onCompleted: function () {
        checkDisposed(this);
        if (this.isStopped) { return; }
        this.isStopped = true;
        var now = this.scheduler.now();
        this._trim(now);
        for (var i = 0, os = cloneArray(this.observers), len = os.length; i < len; i++) {
          var observer = os[i];
          observer.onCompleted();
          observer.ensureActive();
        }
        this.observers.length = 0;
      },
      /**
       * Unsubscribe all observers and release resources.
       */
      dispose: function () {
        this.isDisposed = true;
        this.observers = null;
      }
    });

    return ReplaySubject;
  }(Observable));

  var AnonymousSubject = Rx.AnonymousSubject = (function (__super__) {
    inherits(AnonymousSubject, __super__);
    function AnonymousSubject(observer, observable) {
      this.observer = observer;
      this.observable = observable;
      __super__.call(this);
    }

    addProperties(AnonymousSubject.prototype, Observer.prototype, {
      _subscribe: function (o) {
        return this.observable.subscribe(o);
      },
      onCompleted: function () {
        this.observer.onCompleted();
      },
      onError: function (error) {
        this.observer.onError(error);
      },
      onNext: function (value) {
        this.observer.onNext(value);
      }
    });

    return AnonymousSubject;
  }(Observable));

  /**
  * Used to pause and resume streams.
  */
  Rx.Pauser = (function (__super__) {
    inherits(Pauser, __super__);
    function Pauser() {
      __super__.call(this);
    }

    /**
     * Pauses the underlying sequence.
     */
    Pauser.prototype.pause = function () { this.onNext(false); };

    /**
    * Resumes the underlying sequence.
    */
    Pauser.prototype.resume = function () { this.onNext(true); };

    return Pauser;
  }(Subject));

  if (true) {
    root.Rx = Rx;

    !(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
      return Rx;
    }).call(exports, __webpack_require__, exports, module),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  } else if (freeExports && freeModule) {
    // in Node.js or RingoJS
    if (moduleExports) {
      (freeModule.exports = Rx).Rx = Rx;
    } else {
      freeExports.Rx = Rx;
    }
  } else {
    // in a browser or Rhino
    root.Rx = Rx;
  }

  // All code before this point will be filtered from stack traces.
  var rEndingLine = captureLine();

}.call(this));

/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(7)(module), __webpack_require__(5), __webpack_require__(21)))

/***/ })

/******/ });
});