var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadstatustext="<img src='../../web/eng/ajaxtabs/loading.gif' align='absmiddle' /> <a>Requesting content...</a>"

////NO NEED TO EDIT BELOW////////////////////////
var loadedobjects=""
var defaultcontentarray=new Object()
var bustcacheparameter=""

function ajaxpage2(url, containerid, targetobj){
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
} 
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
var ullist=targetobj.parentNode.parentNode.getElementsByTagName("li")
for (var i=0; i<ullist.length; i++)
ullist[i].className=""  //deselect all tabs
targetobj.parentNode.className="selected"  //highlight currently clicked on tab
if (url.indexOf("#default")!=-1){ //if simply show default content within container (verus fetch it via ajax)
document.getElementById(containerid).innerHTML=defaultcontentarray[containerid]
return
}
document.getElementById(containerid).innerHTML=loadstatustext
page_request.onreadystatechange=function() {
	loadpage2(page_request, containerid, url);
}
if (bustcachevar) //if bust caching of external page
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}

function loadpage2(page_request, containerid, url){
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)) {
		document.getElementById(containerid).innerHTML = page_request.responseText;
		if(url.indexOf('external2.php') != -1) start_chat();
	}
}

function loadobjs2(revattribute){
if (revattribute!=null && revattribute!=""){ //if "rev" attribute is defined (load external .js or .css files)
var objectlist=revattribute.split(/\s*,\s*/) //split the files and store as array
for (var i=0; i<objectlist.length; i++){
var file=objectlist[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}
}

function savedefaultcontent(contentid){// save default ajax tab content
if (typeof defaultcontentarray[contentid]=="undefined") //if default content hasn't already been saved
defaultcontentarray[contentid]=document.getElementById(contentid).innerHTML
}

function startajaxtabs() {
	for (var i=0; i<arguments.length; i++){ //loop through passed UL ids
	var ulobj=document.getElementById(arguments[i])
	var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL
	for (var x=0; x<ulist.length; x++){ //loop through each LI element
	var ulistlink=ulist[x].getElementsByTagName("a")[0]
	if (ulistlink.getAttribute("rel")){
	var modifiedurl=ulistlink.getAttribute("href").replace(/^http:\/\/[^\/]+\//i, "http://"+window.location.hostname+"/")
	ulistlink.setAttribute("href", modifiedurl) //replace URL's root domain with dynamic root domain, for ajax security sake
	savedefaultcontent(ulistlink.getAttribute("rel")) //save default ajax tab content
	ulistlink.onclick=function(){
	ajaxpage2(this.getAttribute("href"), this.getAttribute("rel"), this)
	loadobjs2(this.getAttribute("rev"))
	return false
}
if (ulist[x].className=="selected"){
	ajaxpage2(ulistlink.getAttribute("href"), ulistlink.getAttribute("rel"), ulistlink) //auto load currenly selected tab content
	loadobjs2(ulistlink.getAttribute("rev")) //auto load any accompanying .js and .css files
}
}
}
}
}

/***********************************************************************************************/
/* most simple ajax chat script (www.linuxuser.at) (GPLv2) */
var nick_maxlength = 10;
var reqChat = false;
var intUpdate;
function ajax_chat(url,opt)
{
	reqChat = false;
	if(window.XMLHttpRequest) { 
		reqChat = new XMLHttpRequest();
		if(reqChat.overrideMimeType) { reqChat.overrideMimeType('text/xml'); }
	} else if(window.ActiveXObject) { 
		try{reqChat = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) { 
			try{ reqChat = new ActiveXObject("Microsoft.XMLHTTP"); }
			catch(e) { }
		}
	}
	if(!reqChat){ alert('Giving up :( Cannot create an XMLHTTP instance'); return false; }
	if(opt == "read") { reqChat.onreadystatechange = alertContents2; }
	else if(opt == "write") { reqChat.onreadystatechange = alertContents; }
	reqChat.open('GET',url,true); reqChat.send(null);
}

function alertContents(){if(reqChat.readyState==4){if(reqChat.status==200){rec_response(reqChat.responseText);}else{}}}
function alertContents2(){if(reqChat.readyState==4){if(reqChat.status==200){rec_chatcontent(reqChat.responseText);}else{}}}
// chat stuff 
var show_newmsg_on_bottom = 1;
var waittime = 1000;
var intUpdate = 0;

function start_chat() {
	chatmsg.focus();
	intUpdate = window.setTimeout("read_cont();", waittime);
	chatwindow.value = "loading...";
}

function read_cont() 		{ zeit = new Date(); ms = (zeit.getHours() * 24 * 60 * 1000) + (zeit.getMinutes() * 60 * 1000) + (zeit.getSeconds() * 1000) + zeit.getMilliseconds(); ajax_chat("chat.txt?x=" + ms,'read'); }
function display_msg(msg1) 	{ chatwindow.value = msg1.substr(0,msg1.length - 1); }
function keyup(arg1) 		{ if (arg1 == 13) submit_msg(); }
function submit_msg() 		{ clearTimeout(intUpdate); if (chatnick.value == "") { check = prompt("please enter username:"); if (check === null) return 0; if (check == "") check="..."; chatnick.value=check; } if (chatnick.value.length > nick_maxlength) chatnick.value=chatnick.value.substring(0,nick_maxlength); spaces=""; for(i=0;i<(nick_maxlength-chatnick.value.length);i++) spaces+=" "; v=chatwindow.value.substring(chatwindow.value.indexOf("\n")) + "\n" + chatnick.value + spaces + "| " + chatmsg.value; if (chatmsg.value != "") chatwindow.value=v.substring(1); write_msg(chatmsg.value,chatnick.value); chatmsg.value=""; intUpdate=window.setTimeout("read_cont();", waittime);}
function write_msg(msg1,nick1) 	{ ajax_chat("w.php?m=" + escape(msg1) + "&n=" + escape(nick1),'write'); }
function rec_response(str1) 	{ }

function rec_chatcontent(cont1) { 
	if (cont1 != "") { 
		out1 = unescape(cont1); 
		if (show_newmsg_on_bottom == 0) { out1 = ""; while (cont1.indexOf("\n") > -1) { out1 = cont1.substr(0, cont1.indexOf("\n")) + "\n" + out1; cont1 = cont1.substr(cont1.indexOf("\n") + 1); out1 = unescape(out1); } }
		if (chatwindow.value != out1) { display_msg(out1); } 
		intUpdate=window.setTimeout("read_cont()", waittime); 
	} 
}