function EdaHistory(){}
EdaHistory.init = function() {
var me = EdaHistory;
window.EdaHistory = me;
Utils.browserVersion.init();
var fB = Utils.browser;
var fV = Utils.version;
if (fB == "Explorer" && fV >= 5.5) {
me.withFrame = true;
} else if (fB == "Mozilla" || fB == "Firefox" || (fB == "Opera" && fV >= 9.5) || (fB == "Safari" && fV >= 500)) {
me.withTicker = true;
} else {
me.unsupported = true;
return false;
}
return true;
}
EdaHistory.start = function(pCallback) {
var me = EdaHistory;
if (me.unsupported) return;
me.started = true;
me.baseurl = Utils.splitPath(top.document.location.toString()) [0];
me.history = {};
if (me.withFrame) {
me.frame = document.createElement("iframe");
me.frame.style.visibility = "hidden";
me.frame.style.position = "absolute";
document.body.appendChild(me.frame);
this.intervalId = setInterval(me.checkFrame, 200);
} else if (me.withTicker) {
this.intervalId = setInterval(me.checkHistory, 200);
} else return false; // means unsupported
me.callback = pCallback;
}
EdaHistory.set = function(pUrl, pTitle) {
var me = EdaHistory;
if (me.unsupported) return;
var fUrl = Utils.relativePath(pUrl, me.baseurl);
me.setHash(fUrl);
me.setTitle(pTitle);
me.history[fUrl] = pTitle;
if (me.withFrame) {
var fDoc = me.frame.contentWindow.document;
fDoc.open();
fDoc.write(''+pTitle+'' + fUrl + '
');
fDoc.close();
}
}
EdaHistory.checkFrame = function() {
var me = EdaHistory;
var fFrame = me.frame;
if (!fFrame.contentWindow || !fFrame.contentWindow.document) {
return;
}
var fUrl = fFrame.contentWindow.document.getElementById("url").innerText;
if (fUrl == me.url) return;
me.url = fUrl;
var fTitle = me.history[fUrl];
if (fTitle == null) return;
me.setHash(fUrl);
me.setTitle(fTitle);
me.callback(fUrl);
}
EdaHistory.setHash = function(pUrl) {
window.top.location.hash = encodeURIComponent(pUrl);
this.url = pUrl;
}
EdaHistory.getHash = function() {
var fHref = window.top.location.href.toString().split("#");
if (fHref.length > 1) return decodeURIComponent(fHref[1]);
else return null;
}
EdaHistory.setTitle = function(pTitle) {
window.top.document.title = pTitle;
}
EdaHistory.checkHistory = function() {
var me = EdaHistory;
var fUrl = me.getHash();
if (fUrl == me.url) return;
me.url = fUrl;
var fTitle = me.history[fUrl];
if (fTitle == null) return;
me.setTitle(fTitle);
me.callback(fUrl);
}
if (EdaHistory.init()) {
var fNewloc = EdaHistory.getHash();
if (fNewloc != null) {
document.location = fNewloc;
}
}