//Change Log:
	//* Updated: July 11th, 07: Fixed bug with persistence not working. Doh.
	//* Updated: July 9th, 07: Added session only persistence to tabs (set "enabletabpersistence" var below). Only .js file changed.
	//* Updated Nov 8th, 06. Ability to select a tab dynamically, by calling a method (ie: via a link). Only .js file changed.
	var bustcachevar=0 //bust potential caching of external pages after initial request? (1=yes, 0=no)
	var loadstatustext="<p class='loading-img'><img src='img/loading.gif' alt='Loading...'/></p>"
	var enabletabpersistence=1 //enable tab persistence via session only cookies, so selected tab is remembered (1=yes, 0=no)?
	
	////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, IE7, 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)
	}



	// Include external .JS file
	function include(url)
	{
		var xhr;
		if (window.XMLHttpRequest)
			{
				xhr = new XMLHttpRequest();
			}
		else
			{
				try
				{
					xhr = new ActiveXObject("Microsoft.XMLHTTP");
				}
				catch(exception)
				{
					xhr = null;
				}
			}

		if (xhr)
			{
				xhr.open("GET", url);
				xhr.onreadystatechange = function()
					{
						if (xhr.readyState == 4)
							{
								eval(xhr.responseText);
							}
					}
				xhr.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;
			include("js/jquery-1.1.3.1.pack.js");
			include("js/jquery.accessible-news-slider.js");
			include("js/speed.js");
		}
	}

	
	

	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("src", file);
						fileref.setAttribute("type","text/javascript");
					}
					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 expandtab(tabcontentid, tabnumber){ //interface for selecting a tab (plus expand corresponding content)
		var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
		if (thetab.getAttribute("rel")){
			ajaxpage(thetab.getAttribute("href"), thetab.getAttribute("rel"), thetab)
			loadobjs(thetab.getAttribute("rev"))
		}
	}

	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
			var persisttabindex=(enabletabpersistence==1)? parseInt(getCookie(arguments[i])) : "" //get index of persisted tab (if applicable)
			var isvalidpersist=(persisttabindex<ulist.length)? true : false //check if persisted tab index falls within range of defined tabs
			for (var x=0; x<ulist.length; x++){ //loop through each LI element
				var ulistlink=ulist[x].getElementsByTagName("a")[0]
				ulistlink.index=x
				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(){
						ajaxpage(this.getAttribute("href"), this.getAttribute("rel"), this)
						loadobjs(this.getAttribute("rev"))
						saveselectedtabindex(this.parentNode.parentNode.id, this.index)
						return false
					}
					if ((enabletabpersistence==1 && persisttabindex<ulist.length && x==persisttabindex) || (enabletabpersistence==0 && 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
					}
				}
			}
		}
	}

	////////////Persistence related functions//////////////////////////

	function saveselectedtabindex(ulid, index){ //remember currently selected tab (based on order relative to other tabs)
		if (enabletabpersistence==1) //if persistence feature turned on
			setCookie(ulid, index)
		}

	function getCookie(Name){ 
		var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
		if (document.cookie.match(re)) //if cookie found
			return document.cookie.match(re)[0].split("=")[1] //return its value
			return ""
		}
	
	function setCookie(name, value){
		document.cookie = name+"="+value //cookie value is domain wide (path=/)
	}