window.dhtmlHistory = { isIE: false, isOpera: false, isSafari: false, isKonquerer: false, isGecko: false, isSupported: false, create: function(D) { var G = this; var F = navigator.userAgent.toLowerCase(); var A = navigator.platform.toLowerCase(); var H = navigator.vendor || ""; if (H === "KDE") { this.isKonqueror = true; this.isSupported = false } else { if (typeof window.opera !== "undefined") { this.isOpera = true; this.isSupported = true } else { if (typeof document.all !== "undefined") { this.isIE = true; this.isSupported = true } else { if (H.indexOf("Apple Computer, Inc.") > -1) { this.isSafari = true; this.isSupported = (A.indexOf("mac") > -1) } else { if (F.indexOf("gecko") != -1) { this.isGecko = true; this.isSupported = true } } } } } window.historyStorage.setup(D); if (this.isSafari) { this.createSafari() } else { if (this.isOpera) { this.createOpera() } } var B = this.getCurrentLocation(); this.currentLocation = B; if (this.isIE) { this.createIE(B) } var E = function() { G.firstLoad = null }; this.addEventListener(window, "unload", E); if (this.isIE) { this.ignoreLocationChange = true } else { if (!historyStorage.hasKey(this.PAGELOADEDSTRING)) { this.ignoreLocationChange = true; this.firstLoad = true; historyStorage.put(this.PAGELOADEDSTRING, true) } else { this.ignoreLocationChange = false; this.fireOnNewListener = true } } var C = function() { G.checkLocation() }; setInterval(C, 100) }, initialize: function() { if (this.isIE) { if (!historyStorage.hasKey(this.PAGELOADEDSTRING)) { this.fireOnNewListener = false; this.firstLoad = true; historyStorage.put(this.PAGELOADEDSTRING, true) } else { this.fireOnNewListener = true; this.firstLoad = false } } }, addListener: function(A) { this.listener = A; if (this.fireOnNewListener) { this.fireHistoryEvent(this.currentLocation); this.fireOnNewListener = false } }, addEventListener: function(C, B, A) { if (C.addEventListener) { C.addEventListener(B, A, false) } else { if (C.attachEvent) { C.attachEvent("on" + B, function() { A(window.event) }) } } }, add: function(C, D) { if (this.isSafari) { C = this.removeHash(C); historyStorage.put(C, D); this.currentLocation = C; window.location.hash = C; this.putSafariState(C) } else { var B = this; var A = function() { if (B.currentWaitTime > 0) { B.currentWaitTime = B.currentWaitTime - B.waitTime } C = B.removeHash(C); if (document.getElementById(C) && B.debugMode) { var E = "Exception: History locations can not have the same value as _any_ IDs that might be in the document, due to a bug in IE; please ask the developer to choose a history location that does not match any HTML IDs in this document. The following ID is already taken and cannot be a location: " + C; throw new Error(E) } historyStorage.put(C, D); B.ignoreLocationChange = true; B.ieAtomicLocationChange = true; B.currentLocation = C; window.location.hash = C; if (B.isIE) { B.iframe.src = "blank.html?" + C } B.ieAtomicLocationChange = false }; window.setTimeout(A, this.currentWaitTime); this.currentWaitTime = this.currentWaitTime + this.waitTime } }, isFirstLoad: function() { return this.firstLoad }, getVersion: function() { return "0.6" }, isFireOnNewListener: function() { return this.fireOnNewListener }, getCurrentLocation: function() { var A = (this.isSafari ? this.getSafariState() : this.getCurrentHash()); return A }, getCurrentHash: function() { var B = window.location.href; var A = B.indexOf("#"); return (A >= 0 ? B.substr(A + 1) : "") }, PAGELOADEDSTRING: "DhtmlHistory_pageLoaded", listener: null, waitTime: 200, currentWaitTime: 0, currentLocation: null, iframe: null, safariHistoryStartPoint: null, safariStack: null, safariLength: null, ignoreLocationChange: null, fireOnNewListener: null, firstLoad: null, ieAtomicLocationChange: null, createIE: function(A) { this.waitTime = 400; var B = (historyStorage.debugMode ? "width: 800px;height:80px;border:1px solid black;" : historyStorage.hideStyles); var D = "rshHistoryFrame"; var C = '<iframe frameborder="0" id="' + D + '" style="' + B + '" src="blank.html?' + A + '"></iframe>'; document.write(C); this.iframe = document.getElementById(D) }, createOpera: function() { this.waitTime = 400; var A = '<img src="javascript:location.href=\'javascript:dhtmlHistory.checkLocation();\';" style="' + historyStorage.hideStyles + '" />'; document.write(A) }, createSafari: function() { var E = "rshSafariForm"; var D = "rshSafariStack"; var C = "rshSafariLength"; var B = historyStorage.debugMode ? historyStorage.showStyles : historyStorage.hideStyles; var A = (historyStorage.debugMode ? "width:800px;height:20px;border:1px solid black;margin:0;padding:0;" : historyStorage.hideStyles); var F = '<form id="' + E + '" style="' + B + '"><input type="text" style="' + A + '" id="' + D + '" value="[]"/><input type="text" style="' + A + '" id="' + C + '" value=""/></form>'; document.write(F); this.safariStack = document.getElementById(D); this.safariLength = document.getElementById(C); if (!historyStorage.hasKey(this.PAGELOADEDSTRING)) { this.safariHistoryStartPoint = history.length; this.safariLength.value = this.safariHistoryStartPoint } else { this.safariHistoryStartPoint = this.safariLength.value } }, getSafariStack: function() { var A = this.safariStack.value; return historyStorage.fromJSON(A) }, getSafariState: function() { var A = this.getSafariStack(); var B = A[history.length - this.safariHistoryStartPoint - 1]; return B }, putSafariState: function(B) { var A = this.getSafariStack(); A[history.length - this.safariHistoryStartPoint] = B; this.safariStack.value = historyStorage.toJSON(A) }, fireHistoryEvent: function(A) { var B = historyStorage.get(A); this.listener.call(null, A, B) }, checkLocation: function() { if (!this.isIE && this.ignoreLocationChange) { this.ignoreLocationChange = false; return } if (!this.isIE && this.ieAtomicLocationChange) { return } var A = this.getCurrentLocation(); if (A == this.currentLocation) { return } this.ieAtomicLocationChange = true; if (this.isIE && this.getIframeHash() != A) { this.iframe.src = "blank.html?" + A } else { if (this.isIE) { return } } this.currentLocation = A; this.ieAtomicLocationChange = false; this.fireHistoryEvent(A) }, getIframeHash: function() { var B = this.iframe.contentWindow.document; var A = String(B.location.search); if (A.length == 1 && A.charAt(0) == "?") { A = "" } else { if (A.length >= 2 && A.charAt(0) == "?") { A = A.substring(1) } } return A }, removeHash: function(B) { var A; if (B === null || B === undefined) { A = null } else { if (B === "") { A = "" } else { if (B.length == 1 && B.charAt(0) == "#") { A = "" } else { if (B.length > 1 && B.charAt(0) == "#") { A = B.substring(1) } else { A = B } } } } return A }, iframeLoaded: function(A) { if (this.ignoreLocationChange) { this.ignoreLocationChange = false; return } var B = String(A.search); if (B.length == 1 && B.charAt(0) == "?") { B = "" } else { if (B.length >= 2 && B.charAt(0) == "?") { B = B.substring(1) } } window.location.hash = B; this.fireHistoryEvent(B) } }; window.historyStorage = { setup: function(B) { if (typeof B !== "undefined") { if (B.debugMode) { this.debugMode = B.debugMode } if (B.toJSON) { this.toJSON = B.toJSON } if (B.fromJSON) { this.fromJSON = B.fromJSON } } var D = "rshStorageForm"; var F = "rshStorageField"; var A = this.debugMode ? historyStorage.showStyles : historyStorage.hideStyles; var E = (historyStorage.debugMode ? "width: 800px;height:80px;border:1px solid black;" : historyStorage.hideStyles); var C = '<form id="' + D + '" style="' + A + '"><textarea id="' + F + '" style="' + E + '"></textarea></form>'; document.write(C); this.storageField = document.getElementById(F); if (typeof window.opera !== "undefined") { this.storageField.focus() } }, put: function(A, B) { this.assertValidKey(A); if (this.hasKey(A)) { this.remove(A) } this.storageHash[A] = B; this.saveHashTable() }, get: function(A) { this.assertValidKey(A); this.loadHashTable(); var B = this.storageHash[A]; if (B === undefined) { B = null } return B }, remove: function(A) { this.assertValidKey(A); this.loadHashTable(); delete this.storageHash[A]; this.saveHashTable() }, reset: function() { this.storageField.value = ""; this.storageHash = {} }, hasKey: function(A) { this.assertValidKey(A); this.loadHashTable(); return (typeof this.storageHash[A] !== "undefined") }, isValidKey: function(A) { return (typeof A === "string") }, showStyles: "border:0;margin:0;padding:0;", hideStyles: "left:0px;top:-1000px;width:1px;height:1px;border:0;position:absolute;", debugMode: false, storageHash: {}, hashLoaded: false, storageField: null, assertValidKey: function(A) { var B = this.isValidKey(A); if (!B && this.debugMode) { throw new Error("Please provide a valid key for window.historyStorage. Invalid key = " + A + ".") } }, loadHashTable: function() { if (!this.hashLoaded) { var A = this.storageField.value; if (A !== "" && A !== null) { this.storageHash = this.fromJSON(A); this.hashLoaded = true } } }, saveHashTable: function() { this.loadHashTable(); var A = this.toJSON(this.storageHash); this.storageField.value = A }, toJSON: function(A) { return A.toJSONString() }, fromJSON: function(A) { return A.parseJSON() } };