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

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

function ajaxpage(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(){
	loadpage(page_request, containerid)
}

	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 loadpage(page_request, containerid){
		if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
		document.getElementById(containerid).innerHTML=page_request.responseText
	}


	function loadobjs(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 sleep( numberSeconds ) {
////      var dialogScript = "window.setTimeout( function () { window.close(); }, " + numberMillis + ");";
////      var result = window.showModalDialog("javascript:document.writeln(\"<script>" + dialogScript + "<\/script>\")");
//	for(i=0; i<numberSeconds; i++){ 
//		setTimeout('return;', 1000);
//	}
//}

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
		//alert("startajaxtabs.. "+arguments[i]);
		//sleep(5);
		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")){
				
	//			alert("window.location.port "+window.location.port);
	//			alert("if(!= null) "+window.location.port != null);
	//			alert("window.location.port == '' "+(window.location.port == ''));
				
				var modifiedurl=ulistlink.getAttribute("href").replace(/^http:\/\/[^\/]+\//i, "http://"+window.location.hostname+":"+window.location.port+"/")
//				alert("before "+ulistlink.getAttribute("href")+"\nafter "+ modifiedurl)
				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(){
				ajaxpage(this.getAttribute("href"), this.getAttribute("rel"), this)
				loadobjs(this.getAttribute("rev"))
				return false
			}
	
			if (ulist[x].className=="selected"){
			ajaxpage(ulistlink.getAttribute("href"), ulistlink.getAttribute("rel"), ulistlink) //auto load currenly selected tab content
			loadobjs(ulistlink.getAttribute("rev")) //auto load any accompanying .js and .css files
			}
		}
	}
}
}