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[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

/*!
 * History API JavaScript Library v4.2.10
 *
 * Support: IE8+, FF3+, Opera 9+, Safari, Chrome and other
 *
 * Copyright 2011-2018, Dmitrii Pakhtinov ( spb.piksel@gmail.com )
 *
 * http://spb-piksel.ru/
 *
 * MIT license:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Update: 2018-04-15 13:54
 */
(function(factory) {
  if (typeof define === 'function' && define['amd']) {
    if (typeof requirejs !== 'undefined') {
      // https://github.com/devote/HTML5-History-API/issues/73
      var r = requirejs,
          rndKey = '[history' + (new Date()).getTime() + ']';
      var onError = r['onError'];
      factory.toString = function() {
        return rndKey;
      };
      r['onError'] = function(err) {
        if (err.message.indexOf(rndKey) === -1) {
          onError.call(r, err);
        }
      };
    }
    define([], factory);
  }
  // commonJS support
  if (typeof exports === "object" && typeof module !== "undefined") {
    module['exports'] = factory();
  } else {
    // execute anyway
    return factory();
  }
})(function() {
  // Define global variable
  var global = (typeof window === 'object' ? window : this) || {};
  // Prevent the code from running if there is no window.history object or library already loaded
  if (!global.history || "emulate" in global.history) return global.history;
  // symlink to document
  var document = global.document;
  // HTML element
  var documentElement = document.documentElement;
  // symlink to constructor of Object
  var Object = global['Object'];
  // symlink to JSON Object
  var JSON = global['JSON'];
  // symlink to instance object of 'Location'
  var windowLocation = global.location;
  // symlink to instance object of 'History'
  var windowHistory = global.history;
  // new instance of 'History'. The default is a reference to the original object instance
  var historyObject = windowHistory;
  // symlink to method 'history.pushState'
  var historyPushState = windowHistory.pushState;
  // symlink to method 'history.replaceState'
  var historyReplaceState = windowHistory.replaceState;
  // if the browser supports HTML5-History-API
  var isSupportHistoryAPI = isSupportHistoryAPIDetect();
  // verifies the presence of an object 'state' in interface 'History'
  var isSupportStateObjectInHistory = 'state' in windowHistory;
  // symlink to method 'Object.defineProperty'
  var defineProperty = Object.defineProperty;
  // new instance of 'Location', for IE8 will use the element HTMLAnchorElement, instead of pure object
  var locationObject = redefineProperty({}, 't') ? {} : document.createElement('a');
  // prefix for the names of events
  var eventNamePrefix = '';
  // String that will contain the name of the method
  var addEventListenerName = global.addEventListener ? 'addEventListener' : (eventNamePrefix = 'on') && 'attachEvent';
  // String that will contain the name of the method
  var removeEventListenerName = global.removeEventListener ? 'removeEventListener' : 'detachEvent';
  // String that will contain the name of the method
  var dispatchEventName = global.dispatchEvent ? 'dispatchEvent' : 'fireEvent';
  // reference native methods for the events
  var addEvent = maybeBindToGlobal(global[addEventListenerName]);
  var removeEvent = maybeBindToGlobal(global[removeEventListenerName]);
  var dispatch = maybeBindToGlobal(global[dispatchEventName]);
  // default settings
  var settings = {"basepath": '/', "redirect": 0, "type": '/', "init": 0};
  // key for the sessionStorage
  var sessionStorageKey = '__historyAPI__';
  // Anchor Element for parseURL function
  var anchorElement = document.createElement('a');
  // last URL before change to new URL
  var lastURL = windowLocation.href;
  // Control URL, need to fix the bug in Opera
  var checkUrlForPopState = '';
  // for fix on Safari 8
  var triggerEventsInWindowAttributes = 1;
  // trigger event 'onpopstate' on page load
  var isFireInitialState = false;
  // if used history.location of other code
  var isUsedHistoryLocationFlag = 0;
  // store a list of 'state' objects in the current session
  var stateStorage = {};
  // in this object will be stored custom handlers
  var eventsList = {};
  // stored last title
  var lastTitle = document.title;
  // store a custom origin
  var customOrigin;

  /**
   * Properties that will be replaced in the global
   * object 'window', to prevent conflicts
   *
   * @type {Object}
   */
  var eventsDescriptors = {
    "onhashchange": null,
    "onpopstate": null
  };

  /**
   * Fix for Chrome in iOS
   * See https://github.com/devote/HTML5-History-API/issues/29
   */
  var fastFixChrome = function(method, args) {
    var isNeedFix = global.history !== windowHistory;
    if (isNeedFix) {
      global.history = windowHistory;
    }
    method.apply(windowHistory, args);
    if (isNeedFix) {
      global.history = historyObject;
    }
  };

  /**
   * Properties that will be replaced/added to object
   * 'window.history', includes the object 'history.location',
   * for a complete the work with the URL address
   *
   * @type {Object}
   */
  var historyDescriptors = {
    /**
     * Setting library initialization
     *
     * @param {null|String} [basepath] The base path to the site; defaults to the root "/".
     * @param {null|String} [type] Substitute the string after the anchor; by default "/".
     * @param {null|Boolean} [redirect] Enable link translation.
     */
    "setup": function(basepath, type, redirect) {
      settings["basepath"] = ('' + (basepath == null ? settings["basepath"] : basepath))
        .replace(/(?:^|\/)[^\/]*$/, '/');
      settings["type"] = type == null ? settings["type"] : type;
      settings["redirect"] = redirect == null ? settings["redirect"] : !!redirect;
    },
    /**
     * @namespace history
     * @param {String} [type]
     * @param {String} [basepath]
     */
    "redirect": function(type, basepath) {
      historyObject['setup'](basepath, type);
      basepath = settings["basepath"];
      if (global.top == global.self) {
        var relative = parseURL(null, false, true)._relative;
        var path = windowLocation.pathname + windowLocation.search;
        if (isSupportHistoryAPI) {
          path = path.replace(/([^\/])$/, '$1/');
          if (relative != basepath && (new RegExp("^" + basepath + "$", "i")).test(path)) {
            windowLocation.replace(relative);
          }
        } else if (path != basepath) {
          path = path.replace(/([^\/])\?/, '$1/?');
          if ((new RegExp("^" + basepath, "i")).test(path)) {
            windowLocation.replace(basepath + '#' + path.
              replace(new RegExp("^" + basepath, "i"), settings["type"]) + windowLocation.hash);
          }
        }
      }
    },
    /**
     * The method adds a state object entry
     * to the history.
     *
     * @namespace history
     * @param {Object} state
     * @param {string} title
     * @param {string} [url]
     */
    pushState: function(state, title, url) {
      var t = document.title;
      if (lastTitle != null) {
        document.title = lastTitle;
      }
      historyPushState && fastFixChrome(historyPushState, arguments);
      changeState(state, url);
      document.title = t;
      lastTitle = title;
    },
    /**
     * The method updates the state object,
     * title, and optionally the URL of the
     * current entry in the history.
     *
     * @namespace history
     * @param {Object} state
     * @param {string} title
     * @param {string} [url]
     */
    replaceState: function(state, title, url) {
      var t = document.title;
      if (lastTitle != null) {
        document.title = lastTitle;
      }
      delete stateStorage[windowLocation.href];
      historyReplaceState && fastFixChrome(historyReplaceState, arguments);
      changeState(state, url, true);
      document.title = t;
      lastTitle = title;
    },
    /**
     * Object 'history.location' is similar to the
     * object 'window.location', except that in
     * HTML4 browsers it will behave a bit differently
     *
     * @namespace history
     */
    "location": {
      set: function(value) {
        if (isUsedHistoryLocationFlag === 0) isUsedHistoryLocationFlag = 1;
        global.location = value;
      },
      get: function() {
        if (isUsedHistoryLocationFlag === 0) isUsedHistoryLocationFlag = 1;
        return locationObject;
      }
    },
    /**
     * A state object is an object representing
     * a user interface state.
     *
     * @namespace history
     */
    "state": {
      get: function() {
        if (typeof stateStorage[windowLocation.href] === 'object') {
          return JSON.parse(JSON.stringify(stateStorage[windowLocation.href]));
        } else if(typeof stateStorage[windowLocation.href] !== 'undefined') {
          return stateStorage[windowLocation.href];
        } else {
          return null;
        }
      }
    }
  };

  /**
   * Properties for object 'history.location'.
   * Object 'history.location' is similar to the
   * object 'window.location', except that in
   * HTML4 browsers it will behave a bit differently
   *
   * @type {Object}
   */
  var locationDescriptors = {
    /**
     * Navigates to the given page.
     *
     * @namespace history.location
     */
    assign: function(url) {
      if (!isSupportHistoryAPI && ('' + url).indexOf('#') === 0) {
        changeState(null, url);
      } else {
        windowLocation.assign(url);
      }
    },
    /**
     * Reloads the current page.
     *
     * @namespace history.location
     */
    reload: function(flag) {
      windowLocation.reload(flag);
    },
    /**
     * Removes the current page from
     * the session history and navigates
     * to the given page.
     *
     * @namespace history.location
     */
    replace: function(url) {
      if (!isSupportHistoryAPI && ('' + url).indexOf('#') === 0) {
        changeState(null, url, true);
      } else {
        windowLocation.replace(url);
      }
    },
    /**
     * Returns the current page's location.
     *
     * @namespace history.location
     */
    toString: function() {
      return this.href;
    },
    /**
     * Returns the current origin.
     *
     * @namespace history.location
     */
    "origin": {
      get: function() {
        if (customOrigin !== void 0) {
          return customOrigin;
        }
        if (!windowLocation.origin) {
          return windowLocation.protocol + "//" + windowLocation.hostname + (windowLocation.port ? ':' + windowLocation.port: '');
        }
        return windowLocation.origin;
      },
      set: function(value) {
        customOrigin = value;
      }
    },
    /**
     * Returns the current page's location.
     * Can be set, to navigate to another page.
     *
     * @namespace history.location
     */
    "href": isSupportHistoryAPI ? null : {
      get: function() {
        return parseURL()._href;
      }
    },
    /**
     * Returns the current page's protocol.
     *
     * @namespace history.location
     */
    "protocol": null,
    /**
     * Returns the current page's host and port number.
     *
     * @namespace history.location
     */
    "host": null,
    /**
     * Returns the current page's host.
     *
     * @namespace history.location
     */
    "hostname": null,
    /**
     * Returns the current page's port number.
     *
     * @namespace history.location
     */
    "port": null,
    /**
     * Returns the current page's path only.
     *
     * @namespace history.location
     */
    "pathname": isSupportHistoryAPI ? null : {
      get: function() {
        return parseURL()._pathname;
      }
    },
    /**
     * Returns the current page's search
     * string, beginning with the character
     * '?' and to the symbol '#'
     *
     * @namespace history.location
     */
    "search": isSupportHistoryAPI ? null : {
      get: function() {
        return parseURL()._search;
      }
    },
    /**
     * Returns the current page's hash
     * string, beginning with the character
     * '#' and to the end line
     *
     * @namespace history.location
     */
    "hash": isSupportHistoryAPI ? null : {
      set: function(value) {
        changeState(null, ('' + value).replace(/^(#|)/, '#'), false, lastURL);
      },
      get: function() {
        return parseURL()._hash;
      }
    }
  };

  /**
   * Just empty function
   *
   * @return void
   */
  function emptyFunction() {
    // dummy
  }

  /**
   * Prepares a parts of the current or specified reference for later use in the library
   *
   * @param {string} [href]
   * @param {boolean} [isWindowLocation]
   * @param {boolean} [isNotAPI]
   * @return {Object}
   */
  function parseURL(href, isWindowLocation, isNotAPI) {
    var re = /(?:([a-zA-Z0-9\-]+\:))?(?:\/\/(?:[^@]*@)?([^\/:\?#]+)(?::([0-9]+))?)?([^\?#]*)(?:(\?[^#]+)|\?)?(?:(#.*))?/;
    if (href != null && href !== '' && !isWindowLocation) {
      var current = parseURL(),
          base = document.getElementsByTagName('base')[0];
      if (!isNotAPI && base && base.getAttribute('href')) {
        // Fix for IE ignoring relative base tags.
        // See http://stackoverflow.com/questions/3926197/html-base-tag-and-local-folder-path-with-internet-explorer
        base.href = base.href;
        current = parseURL(base.href, null, true);
      }
      var _pathname = current._pathname, _protocol = current._protocol;
      // convert to type of string
      href = '' + href;
      // convert relative link to the absolute
      href = /^(?:\w+\:)?\/\//.test(href) ? href.indexOf("/") === 0
        ? _protocol + href : href : _protocol + "//" + current._host + (
        href.indexOf("/") === 0 ? href : href.indexOf("?") === 0
          ? _pathname + href : href.indexOf("#") === 0
          ? _pathname + current._search + href : _pathname.replace(/[^\/]+$/g, '') + href
        );
    } else {
      href = isWindowLocation ? href : windowLocation.href;
      // if current browser not support History-API
      if (!isSupportHistoryAPI || isNotAPI) {
        // get hash fragment
        href = href.replace(/^[^#]*/, '') || "#";
        // form the absolute link from the hash
        // https://github.com/devote/HTML5-History-API/issues/50
        href = windowLocation.protocol.replace(/:.*$|$/, ':') + '//' + windowLocation.host + settings['basepath']
          + href.replace(new RegExp("^#[\/]?(?:" + settings["type"] + ")?"), "");
      }
    }
    // that would get rid of the links of the form: /../../
    anchorElement.href = href;
    // decompose the link in parts
    var result = re.exec(anchorElement.href);
    // host name with the port number
    var host = result[2] + (result[3] ? ':' + result[3] : '');
    // folder
    var pathname = result[4] || '/';
    // the query string
    var search = result[5] || '';
    // hash
    var hash = result[6] === '#' ? '' : (result[6] || '');
    // relative link, no protocol, no host
    var relative = pathname + search + hash;
    // special links for set to hash-link, if browser not support History API
    var nohash = pathname.replace(new RegExp("^" + settings["basepath"], "i"), settings["type"]) + search;
    // result
    return {
      _href: result[1] + '//' + host + relative,
      _protocol: result[1],
      _host: host,
      _hostname: result[2],
      _port: result[3] || '',
      _pathname: pathname,
      _search: search,
      _hash: hash,
      _relative: relative,
      _nohash: nohash,
      _special: nohash + hash
    }
  }

  /**
   * Detect HistoryAPI support while taking into account false positives.
   * Based on https://github.com/Modernizr/Modernizr/blob/master/feature-detects/history.js
   */
  function isSupportHistoryAPIDetect(){
    var ua = global.navigator.userAgent;
    // We only want Android 2 and 4.0, stock browser, and not Chrome which identifies
    // itself as 'Mobile Safari' as well, nor Windows Phone (issue #1471).
    if ((ua.indexOf('Android 2.') !== -1 ||
      (ua.indexOf('Android 4.0') !== -1)) &&
      ua.indexOf('Mobile Safari') !== -1 &&
      ua.indexOf('Chrome') === -1 &&
      ua.indexOf('Windows Phone') === -1)
    {
      return false;
    }
    // Return the regular check
    return !!historyPushState;
  }

  /**
   * This method attempts to bind a function to global.
   *
   * @param {Function} [func] The function to be bound
   * @return {Function} Returns the bound function or func
   */
  function maybeBindToGlobal(func) {
    if (func && global &&
        global['EventTarget'] &&
        typeof global['EventTarget'].prototype.addEventListener === 'function' &&
        typeof func.bind === 'function') {
      return func.bind(global);
    }
    return func;
  }

  /**
   * Initializing storage for the custom state's object
   */
  function storageInitialize() {
    var sessionStorage;
    /**
     * sessionStorage throws error when cookies are disabled
     * Chrome content settings when running the site in a Facebook IFrame.
     * see: https://github.com/devote/HTML5-History-API/issues/34
     * and: http://stackoverflow.com/a/12976988/669360
     */
    try {
      sessionStorage = global['sessionStorage'];
      sessionStorage.setItem(sessionStorageKey + 't', '1');
      sessionStorage.removeItem(sessionStorageKey + 't');
    } catch(_e_) {
      sessionStorage = {
        getItem: function(key) {
          var cookie = document.cookie.split(key + "=");
          return cookie.length > 1 && cookie.pop().split(";").shift() || 'null';
        },
        setItem: function(key, value) {
          var state = {};
          // insert one current element to cookie
          if (state[windowLocation.href] = historyObject.state) {
            document.cookie = key + '=' + JSON.stringify(state);
          }
        }
      }
    }

    try {
      // get cache from the storage in browser
      stateStorage = JSON.parse(sessionStorage.getItem(sessionStorageKey)) || {};
    } catch(_e_) {
      stateStorage = {};
    }

    // hang up the event handler to event unload page
    addEvent(eventNamePrefix + 'unload', function() {
      // save current state's object
      sessionStorage.setItem(sessionStorageKey, JSON.stringify(stateStorage));
    }, false);
  }

  /**
   * This method is implemented to override the built-in(native)
   * properties in the browser, unfortunately some browsers are
   * not allowed to override all the properties and even add.
   * For this reason, this was written by a method that tries to
   * do everything necessary to get the desired result.
   *
   * @param {Object} object The object in which will be overridden/added property
   * @param {String} prop The property name to be overridden/added
   * @param {Object} [descriptor] An object containing properties set/get
   * @param {Function} [onWrapped] The function to be called when the wrapper is created
   * @return {Object|Boolean} Returns an object on success, otherwise returns false
   */
  function redefineProperty(object, prop, descriptor, onWrapped) {
    var testOnly = 0;
    // test only if descriptor is undefined
    if (!descriptor) {
      descriptor = {set: emptyFunction};
      testOnly = 1;
    }
    // variable will have a value of true the success of attempts to set descriptors
    var isDefinedSetter = !descriptor.set;
    var isDefinedGetter = !descriptor.get;
    // for tests of attempts to set descriptors
    var test = {configurable: true, set: function() {
      isDefinedSetter = 1;
    }, get: function() {
      isDefinedGetter = 1;
    }};

    try {
      // testing for the possibility of overriding/adding properties
      defineProperty(object, prop, test);
      // running the test
      object[prop] = object[prop];
      // attempt to override property using the standard method
      defineProperty(object, prop, descriptor);
    } catch(_e_) {
    }

    // If the variable 'isDefined' has a false value, it means that need to try other methods
    if (!isDefinedSetter || !isDefinedGetter) {
      // try to override/add the property, using deprecated functions
      if (object.__defineGetter__) {
        // testing for the possibility of overriding/adding properties
        object.__defineGetter__(prop, test.get);
        object.__defineSetter__(prop, test.set);
        // running the test
        object[prop] = object[prop];
        // attempt to override property using the deprecated functions
        descriptor.get && object.__defineGetter__(prop, descriptor.get);
        descriptor.set && object.__defineSetter__(prop, descriptor.set);
      }

      // Browser refused to override the property, using the standard and deprecated methods
      if (!isDefinedSetter || !isDefinedGetter) {
        if (testOnly) {
          return false;
        } else if (object === global) {
          // try override global properties
          try {
            // save original value from this property
            var originalValue = object[prop];
            // set null to built-in(native) property
            object[prop] = null;
          } catch(_e_) {
          }
          // This rule for Internet Explorer 8
          if ('execScript' in global) {
            /**
             * to IE8 override the global properties using
             * VBScript, declaring it in global scope with
             * the same names.
             */
            global['execScript']('Public ' + prop, 'VBScript');
            global['execScript']('var ' + prop + ';', 'JavaScript');
          } else {
            try {
              /**
               * This hack allows to override a property
               * with the set 'configurable: false', working
               * in the hack 'Safari' to 'Mac'
               */
              defineProperty(object, prop, {value: emptyFunction});
            } catch(_e_) {
              if (prop === 'onpopstate') {
                /**
                 * window.onpopstate fires twice in Safari 8.0.
                 * Block initial event on window.onpopstate
                 * See: https://github.com/devote/HTML5-History-API/issues/69
                 */
                addEvent('popstate', descriptor = function() {
                  removeEvent('popstate', descriptor, false);
                  var onpopstate = object.onpopstate;
                  // cancel initial event on attribute handler
                  object.onpopstate = null;
                  setTimeout(function() {
                    // restore attribute value after short time
                    object.onpopstate = onpopstate;
                  }, 1);
                }, false);
                // cancel trigger events on attributes in object the window
                triggerEventsInWindowAttributes = 0;
              }
            }
          }
          // set old value to new variable
          object[prop] = originalValue;

        } else {
          // the last stage of trying to override the property
          try {
            try {
              // wrap the object in a new empty object
              var temp = Object.create(object);
              defineProperty(Object.getPrototypeOf(temp) === object ? temp : object, prop, descriptor);
              for(var key in object) {
                // need to bind a function to the original object
                if (typeof object[key] === 'function') {
                  temp[key] = object[key].bind(object);
                }
              }
              try {
                // to run a function that will inform about what the object was to wrapped
                onWrapped.call(temp, temp, object);
              } catch(_e_) {
              }
              object = temp;
            } catch(_e_) {
              // sometimes works override simply by assigning the prototype property of the constructor
              defineProperty(object.constructor.prototype, prop, descriptor);
            }
          } catch(_e_) {
            // all methods have failed
            return false;
          }
        }
      }
    }

    return object;
  }

  /**
   * Adds the missing property in descriptor
   *
   * @param {Object} object An object that stores values
   * @param {String} prop Name of the property in the object
   * @param {Object|null} descriptor Descriptor
   * @return {Object} Returns the generated descriptor
   */
  function prepareDescriptorsForObject(object, prop, descriptor) {
    descriptor = descriptor || {};
    // the default for the object 'location' is the standard object 'window.location'
    object = object === locationDescriptors ? windowLocation : object;
    // setter for object properties
    descriptor.set = (descriptor.set || function(value) {
      object[prop] = value;
    });
    // getter for object properties
    descriptor.get = (descriptor.get || function() {
      return object[prop];
    });
    return descriptor;
  }

  /**
   * Wrapper for the methods 'addEventListener/attachEvent' in the context of the 'window'
   *
   * @param {String} event The event type for which the user is registering
   * @param {Function} listener The method to be called when the event occurs.
   * @param {Boolean} capture If true, capture indicates that the user wishes to initiate capture.
   * @return void
   */
  function addEventListener(event, listener, capture) {
    if (event in eventsList) {
      // here stored the event listeners 'popstate/hashchange'
      eventsList[event].push(listener);
    } else {
      // FireFox support non-standart four argument aWantsUntrusted
      // https://github.com/devote/HTML5-History-API/issues/13
      if (arguments.length > 3) {
        addEvent(event, listener, capture, arguments[3]);
      } else {
        addEvent(event, listener, capture);
      }
    }
  }

  /**
   * Wrapper for the methods 'removeEventListener/detachEvent' in the context of the 'window'
   *
   * @param {String} event The event type for which the user is registered
   * @param {Function} listener The parameter indicates the Listener to be removed.
   * @param {Boolean} capture Was registered as a capturing listener or not.
   * @return void
   */
  function removeEventListener(event, listener, capture) {
    var list = eventsList[event];
    if (list) {
      for(var i = list.length; i--;) {
        if (list[i] === listener) {
          list.splice(i, 1);
          break;
        }
      }
    } else {
      removeEvent(event, listener, capture);
    }
  }

  /**
   * Wrapper for the methods 'dispatchEvent/fireEvent' in the context of the 'window'
   *
   * @param {Event|String} event Instance of Event or event type string if 'eventObject' used
   * @param {*} [eventObject] For Internet Explorer 8 required event object on this argument
   * @return {Boolean} If 'preventDefault' was called the value is false, else the value is true.
   */
  function dispatchEvent(event, eventObject) {
    var eventType = ('' + (typeof event === "string" ? event : event.type)).replace(/^on/, '');
    var list = eventsList[eventType];
    if (list) {
      // need to understand that there is one object of Event
      eventObject = typeof event === "string" ? eventObject : event;
      if (eventObject.target == null) {
        // need to override some of the properties of the Event object
        for(var props = ['target', 'currentTarget', 'srcElement', 'type']; event = props.pop();) {
          // use 'redefineProperty' to override the properties
          eventObject = redefineProperty(eventObject, event, {
            get: event === 'type' ? function() {
              return eventType;
            } : function() {
              return global;
            }
          });
        }
      }
      if (triggerEventsInWindowAttributes) {
        // run function defined in the attributes 'onpopstate/onhashchange' in the 'window' context
        ((eventType === 'popstate' ? global.onpopstate : global.onhashchange)
          || emptyFunction).call(global, eventObject);
      }
      // run other functions that are in the list of handlers
      for(var i = 0, len = list.length; i < len; i++) {
        list[i].call(global, eventObject);
      }
      return true;
    } else {
      return dispatch(event, eventObject);
    }
  }

  /**
   * dispatch current state event
   */
  function firePopState() {
    var o = document.createEvent ? document.createEvent('Event') : document.createEventObject();
    if (o.initEvent) {
      o.initEvent('popstate', false, false);
    } else {
      o.type = 'popstate';
    }
    o.state = historyObject.state;
    // send a newly created events to be processed
    dispatchEvent(o);
  }

  /**
   * fire initial state for non-HTML5 browsers
   */
  function fireInitialState() {
    if (isFireInitialState) {
      isFireInitialState = false;
      firePopState();
    }
  }

  /**
   * Change the data of the current history for HTML4 browsers
   *
   * @param {Object} state
   * @param {string} [url]
   * @param {Boolean} [replace]
   * @param {string} [lastURLValue]
   * @return void
   */
  function changeState(state, url, replace, lastURLValue) {
    if (!isSupportHistoryAPI) {
      // if not used implementation history.location
      if (isUsedHistoryLocationFlag === 0) isUsedHistoryLocationFlag = 2;
      // normalization url
      var urlObject = parseURL(url, isUsedHistoryLocationFlag === 2 && ('' + url).indexOf("#") !== -1);
      // if current url not equal new url
      if (urlObject._relative !== parseURL()._relative) {
        // if empty lastURLValue to skip hash change event
        lastURL = lastURLValue;
        if (replace) {
          // only replace hash, not store to history
          windowLocation.replace("#" + urlObject._special);
        } else {
          // change hash and add new record to history
          windowLocation.hash = urlObject._special;
        }
      }
    } else {
      lastURL = windowLocation.href;
    }
    if (!isSupportStateObjectInHistory && state) {
      stateStorage[windowLocation.href] = state;
    }
    isFireInitialState = false;
  }

  /**
   * Event handler function changes the hash in the address bar
   *
   * @param {Event} event
   * @return void
   */
  function onHashChange(event) {
    // https://github.com/devote/HTML5-History-API/issues/46
    var fireNow = lastURL;
    // new value to lastURL
    lastURL = windowLocation.href;
    // if not empty fireNow, otherwise skipped the current handler event
    if (fireNow) {
      // if checkUrlForPopState equal current url, this means that the event was raised popstate browser
      if (checkUrlForPopState !== windowLocation.href) {
        // otherwise,
        // the browser does not support popstate event or just does not run the event by changing the hash.
        firePopState();
      }
      // current event object
      event = event || global.event;

      var oldURLObject = parseURL(fireNow, true);
      var newURLObject = parseURL();
      // HTML4 browser not support properties oldURL/newURL
      if (!event.oldURL) {
        event.oldURL = oldURLObject._href;
        event.newURL = newURLObject._href;
      }
      if (oldURLObject._hash !== newURLObject._hash) {
        // if current hash not equal previous hash
        dispatchEvent(event);
      }
    }
  }

  /**
   * The event handler is fully loaded document
   *
   * @param {*} [noScroll]
   * @return void
   */
  function onLoad(noScroll) {
    // Get rid of the events popstate when the first loading a document in the webkit browsers
    setTimeout(function() {
      // hang up the event handler for the built-in popstate event in the browser
      addEvent('popstate', function(e) {
        // set the current url, that suppress the creation of the popstate event by changing the hash
        checkUrlForPopState = windowLocation.href;
        // for Safari browser in OS Windows not implemented 'state' object in 'History' interface
        // and not implemented in old HTML4 browsers
        if (!isSupportStateObjectInHistory) {
          e = redefineProperty(e, 'state', {get: function() {
            return historyObject.state;
          }});
        }
        // send events to be processed
        dispatchEvent(e);
      }, false);
    }, 0);
    // for non-HTML5 browsers
    if (!isSupportHistoryAPI && noScroll !== true && "location" in historyObject) {
      // scroll window to anchor element
      scrollToAnchorId(locationObject.hash);
      // fire initial state for non-HTML5 browser after load page
      fireInitialState();
    }
  }

  /**
   * Finds the closest ancestor anchor element (including the target itself).
   *
   * @param {HTMLElement} target The element to start scanning from.
   * @return {HTMLElement} An element which is the closest ancestor anchor.
   */
  function anchorTarget(target) {
    while (target) {
      if (target.nodeName === 'A') return target;
      target = target.parentNode;
    }
  }

  /**
   * Handles anchor elements with a hash fragment for non-HTML5 browsers
   *
   * @param {Event} e
   */
  function onAnchorClick(e) {
    var event = e || global.event;
    var target = anchorTarget(event.target || event.srcElement);
    var defaultPrevented = "defaultPrevented" in event ? event['defaultPrevented'] : event.returnValue === false;
    if (target && target.nodeName === "A" && !defaultPrevented) {
      var current = parseURL();
      var expect = parseURL(target.getAttribute("href", 2));
      var isEqualBaseURL = current._href.split('#').shift() === expect._href.split('#').shift();
      if (isEqualBaseURL && expect._hash) {
        if (current._hash !== expect._hash) {
          locationObject.hash = expect._hash;
        }
        scrollToAnchorId(expect._hash);
        if (event.preventDefault) {
          event.preventDefault();
        } else {
          event.returnValue = false;
        }
      }
    }
  }

  /**
   * Scroll page to current anchor in url-hash
   *
   * @param hash
   */
  function scrollToAnchorId(hash) {
    var target = document.getElementById(hash = (hash || '').replace(/^#/, ''));
    if (target && target.id === hash && target.nodeName === "A") {
      var rect = target.getBoundingClientRect();
      global.scrollTo((documentElement.scrollLeft || 0), rect.top + (documentElement.scrollTop || 0)
        - (documentElement.clientTop || 0));
    }
  }

  /**
   * Library initialization
   *
   * @return {Boolean} return true if all is well, otherwise return false value
   */
  function initialize() {
    /**
     * Get custom settings from the query string
     */
    var scripts = document.getElementsByTagName('script');
    var src = (scripts[scripts.length - 1] || {}).src || '';
    var arg = src.indexOf('?') !== -1 ? src.split('?').pop() : '';
    arg.replace(/(\w+)(?:=([^&]*))?/g, function(a, key, value) {
      settings[key] = (value || '').replace(/^(0|false)$/, '');
    });

    /**
     * hang up the event handler to listen to the events hashchange
     */
    addEvent(eventNamePrefix + 'hashchange', onHashChange, false);

    // a list of objects with pairs of descriptors/object
    var data = [locationDescriptors, locationObject, eventsDescriptors, global, historyDescriptors, historyObject];

    // if browser support object 'state' in interface 'History'
    if (isSupportStateObjectInHistory) {
      // remove state property from descriptor
      delete historyDescriptors['state'];
    }

    // initializing descriptors
    for(var i = 0; i < data.length; i += 2) {
      for(var prop in data[i]) {
        if (data[i].hasOwnProperty(prop)) {
          if (typeof data[i][prop] !== 'object') {
            // If the descriptor is a simple function, simply just assign it an object
            data[i + 1][prop] = data[i][prop];
          } else {
            // prepare the descriptor the required format
            var descriptor = prepareDescriptorsForObject(data[i], prop, data[i][prop]);
            // try to set the descriptor object
            if (!redefineProperty(data[i + 1], prop, descriptor, function(n, o) {
              // is satisfied if the failed override property
              if (o === historyObject) {
                // the problem occurs in Safari on the Mac
                global.history = historyObject = data[i + 1] = n;
              }
            })) {
              // if there is no possibility override.
              // This browser does not support descriptors, such as IE7

              // remove previously hung event handlers
              removeEvent(eventNamePrefix + 'hashchange', onHashChange, false);

              // fail to initialize :(
              return false;
            }

            // create a repository for custom handlers onpopstate/onhashchange
            if (data[i + 1] === global) {
              eventsList[prop] = eventsList[prop.substr(2)] = [];
            }
          }
        }
      }
    }

    // check settings
    historyObject['setup']();

    // redirect if necessary
    if (settings['redirect']) {
      historyObject['redirect']();
    }

    // initialize
    if (settings["init"]) {
      // You agree that you will use window.history.location instead window.location
      isUsedHistoryLocationFlag = 1;
    }

    // If browser does not support object 'state' in interface 'History'
    if (!isSupportStateObjectInHistory && JSON) {
      storageInitialize();
    }

    // track clicks on anchors
    if (!isSupportHistoryAPI) {
      document[addEventListenerName](eventNamePrefix + "click", onAnchorClick, false);
    }

    if (document.readyState === 'complete') {
      onLoad(true);
    } else {
      if (!isSupportHistoryAPI && parseURL()._relative !== settings["basepath"]) {
        isFireInitialState = true;
      }
      /**
       * Need to avoid triggering events popstate the initial page load.
       * Hang handler popstate as will be fully loaded document that
       * would prevent triggering event onpopstate
       */
      addEvent(eventNamePrefix + 'load', onLoad, false);
    }

    // everything went well
    return true;
  }

  /**
   * Starting the library
   */
  if (!initialize()) {
    // if unable to initialize descriptors
    // therefore quite old browser and there
    // is no sense to continue to perform
    return;
  }

  /**
   * If the property history.emulate will be true,
   * this will be talking about what's going on
   * emulation capabilities HTML5-History-API.
   * Otherwise there is no emulation, ie the
   * built-in browser capabilities.
   *
   * @type {boolean}
   * @const
   */
  historyObject['emulate'] = !isSupportHistoryAPI;

  /**
   * Replace the original methods on the wrapper
   */
  global[addEventListenerName] = addEventListener;
  global[removeEventListenerName] = removeEventListener;
  global[dispatchEventName] = dispatchEvent;

  return historyObject;
});