var _historyRefs = []; // var isIE = /MSIE/.test(navigator.userAgent); var isWindows = /Windows/.test(navigator.userAgent); var isFirefox = /Firefox/.test(navigator.userAgent); var isNetscape = /Netscape/.test(navigator.userAgent); var isSafari = /Safari/.test(navigator.userAgent); var isOpera = /Opera/.test(navigator.userAgent); var historyEnabled = true; // // if(!isIE && !isFirefox && !isNetscape && (!isWindows && isIE)) if(!isIE && !isNetscape && (!isWindows && isIE) || isFirefox){ historyEnabled = false; } // var _pollInterval = 100; // if (!window.flashHistory) new function() { window.flashHistory = this; // private variables var _listeners = []; // there has been much debate over whether this is appropriate as an array on comp.lang.javascript :-) var _currentHash = window.location.hash.substring(1); // do constructor type stuff here // :TODO: add alternative hash update detection methods if one is available (anybody?) // :NOTE: this method doesn't work to detect changes in IE 5.5 or 6.0 when the back button is // pressed (location and location.hash are not updated - even when an anchor is added like in IE 5.0) if (setInterval) var _intervalID = setInterval(_CheckHash, _pollInterval); // private methods function _GetHash() { return window.location.hash.substring(1); }; function _SetHash($newHash) { _currentHash = $newHash; window.location.hash = $newHash; }; function _CheckHash() { var $newHash = _GetHash(); // for (var i = _listeners.length; -1 < --i;){ _listeners[i].historyCheck($newHash); } // if (_currentHash != $newHash) { _currentHash = $newHash; _NotifyListeners($newHash); } }; function _NotifyListeners($newHash) { for (var i = _listeners.length; -1 < --i;){ _listeners[i].historyUpdate($newHash); } }; // this.CheckUpdate = _CheckHash // privileged methods this.AddListener = function($obj) { // consider throwing exceptions here (can't have NS4 compat then) if (!$obj.historyUpdate) return false; // add an exception here // check if this is already in here for (var i = _listeners.length; -1 < --i;) if (_listeners[i] == $obj) return false; // add an exception here? _listeners.push($obj); // do init if ($obj.historyLoad) $obj.historyLoad(_currentHash); return true; }; this.RemoveListener = function($obj) { for (var i = _listeners.length; -1 < --i;) { if (_listeners[i] == $obj) { _listeners.splice(i,1); break; } } }; this.AddBookmark = function($newHash) { // adds history and bookmark hash _currentHash = $newHash; _SetHash($newHash); // having this occur here makes _NotifyListeners fire twice due to the setInterval // _NotifyListeners($newHash); }; /*************************** * Browser specific patches * ***************************/ // do browser sniffing, fixes bugs that can't be detected through feature sniffing if ( isIE ) { // overwrite the old functions (gotta love javascript :-) ) // IE 5.5 and 6.0 (I'm going to assume IE 7.x too - will test August 3) need the iframe method, since adding a hash makes no history if (navigator.appVersion.match(/MSIE (\d\.\d+)/)[1] >= 5.5 ) { // setup history IFrame var $historyFrame = false; this.AddBookmark = function($newHash) { // adds history and bookmark hash _currentHash = $newHash; _CreateHistoryHTML($newHash); _historyRefs[history.length] = _currentHash; }; this._NotifyListeners = function($newHash) { // the first time this is called, it shouldn't notify, so it instead replaces itself with a version that will notify this._NotifyListeners = function($newHash) { _currentHash = $newHash; _SetHash($newHash); _NotifyListeners($newHash); }; }; function _CreateHistoryHTML($newHash) { _SetUpHistoryFrame(true); $historyFrame.document.open('text/html'); $historyFrame.document.write(''); $historyFrame.document.close(); }; // set up the History Frame, for AddHistory method function _SetUpHistoryFrame(safeGaurd) { if (!window.frames['historyFrame']) { $historyFrame = document.createElement("iframe"); $historyFrame.name = 'historyFrame'; $historyFrame.id = 'historyFrame'; $historyFrame.style.display = 'none'; document.body.appendChild($historyFrame); } // reset the reference to the frame using the frames array - for some reason // the other reference can't be used with document.open $historyFrame = window.frames["historyFrame"]; // create root frame for the furthest back state if(!safeGaurd) { _CreateHistoryHTML(_currentHash); } }; addToOnLoad(_SetUpHistoryFrame); //_SetUpHistoryFrame(); } else { // IE 5.0 needs an anchor before it will take a new hash value this.AddBookmark = function($newHash) { // adds history and bookmark hash _currentHash = $newHash; _CreateAnchor($newHash); _SetHash($newHash); _NotifyListeners($newHash); }; function _CreateAnchor($newHash) { var $anchor = document.createElement('a'); $anchor.setAttribute('name',$newHash); if (/MSIE/.test(navigator.userAgent)) $anchor = document.createElement(''); $anchor.style.display = 'none'; $anchor.innerHTML = $newHash; document.body.appendChild($anchor); }; } } }; // // default history listener for HH sites if(typeof hothouse=="undefined"){var hothouse=new Object();} if(typeof hothouse.util=="undefined"){hothouse.util=new Object();} if(typeof hothouse.util.HistoryListener=="undefined"){hothouse.util.HistoryListener=new Object(); } hothouse.util.HistoryListener = function () { this.historyUpdate = function(newHash) { if(newHash == '') return; var flashMovie = document.getElementById(swfId); flashMovie.changeFromHistory(newHash); }; this.historyLoad = function(initHash) { // called when page is first loaded var flashMovie = document.getElementById(swfId); flashMovie.historyInit(initHash); if(hashData == undefined) return; }; this.historyCheck = function(checkHash) { // called every 100 miliseconds by flashHistory object if the browser isn't IE }; }; HistoryListener = hothouse.util.HistoryListener; setupHistory = function() { if((isIE || isNetscape || isFirefox)){ window.flashHistory.AddListener(new HistoryListener()); } } function updateHistory(pageLevels) { //alert(pageLevels); window.flashHistory.AddBookmark(pageLevels) ; }