var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadstatustext="<img src='_gfx/loadingAnim.gif' id='loadspin' />"

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

function ajaxpage(url, containerid, targetobj){
	var page_request;
	 if(page_request!=null&&page_request.readyState!=0&&page_request.readyState!=4){
        page_request.abort();
    }
    try{
        // instantiate object for Mozilla, Nestcape, etc.
        page_request=new XMLHttpRequest();
    }
    catch(e){
        try{
            // instantiate object for Internet Explorer
            page_request=new ActiveXObject('Microsoft.XMLHTTP');
        }
        catch(e){
            // Ajax is not supported by the browser
            page_request=null;
            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)) {
		///// PROJECT PAGE ONLY
		//alert('hi ' + document.getElementById(containerid).className);
		if(document.getElementById(containerid).className == 'pr-c-transition') {
			document.getElementById(containerid).className = 'pr-expanded';
			document.getElementById(containerid).style.background="url(../_gfx/spacer.gif)";
			//alert('hi 1');
		} else if(document.getElementById(containerid).className == 'pr-c-ie-transition') {
			document.getElementById(containerid).className = 'pr-expanded-ie';
			document.getElementById(containerid).style.background="url(../_gfx/spacer.gif)";
			//alert('hi 2');
		} else if(document.getElementById(containerid).className == 'pr-e-transition') {
			document.getElementById(containerid).className = 'pr-collapsed';
			document.getElementById(containerid).style.background="url(../_gfx/pr_collapsed.gif)";
			//alert('hi 3');
		} else if(document.getElementById(containerid).className == 'pr-e-ie-transition') {
			document.getElementById(containerid).className = 'pr-collapsed-ie';
			document.getElementById(containerid).style.background="url(../_gfx/pr_collapsed_ie.gif)";
			//alert('hi 4');
		} 
		
		///// HOME PAGE
		if(document.getElementById(containerid).className == 'ramble_clip_img') {
			document.getElementById(containerid).className = 'ramble_clip_flv';
			
		} else if(document.getElementById(containerid).className == 'ramble_clip_flv') {
			document.getElementById(containerid).className = 'ramble_clip_img';
		} 
		
		///// EPISODE PLAYER
		
		if(document.getElementById(containerid).className == 'episode-player') {
			document.getElementById("chapter-container").className = 'chapter-container';			
			
		} else if(document.getElementById(containerid).className == 'chapter-container') {
			//initplacement2();
			setTimeout(initplacement2,100);
			document.getElementById("chapter-container").style.visibility = "hidden";
			document.getElementById("chapter-container").className = 'episode-player';
			
		}
		
		
		///////// EPISODE COMMENTS
		if(document.getElementById(containerid).className == 'ep_comments_add') {
			setTimeout(openAddComment,100);
			document.getElementById("ep_comments").className = 'ep_comments_showing';
			
		}
		
		////////// ANCESTRY LIST
		if(document.getElementById(containerid).id == 'ancestrycontent') {
			//setTimeout("startTooltip();",1000);
		}

		////////// PERSONAL PAGE SIDE CAPSULE
		if(document.getElementById(containerid).id == 'entrycategories') {
			setTimeout("growCats()",100);
		} 
		
		
		
		document.getElementById(containerid).innerHTML=page_request.responseText;
		
		//////////////////////////////////////
		////// block all the dots around href
		
		var Alist=document.getElementsByTagName("a") //array containing the A tags

		for (var i=0; i<Alist.length; i++){ //loop through each LI element
			//var Alistlink=Alist[x].getElementsByTagName("a")[0]
			var checkRel = Alist[i].getAttribute("rel");
			if(!checkRel) {
				Alist[i].onclick=function() {
					this.blur();
				}
			}
		}
	}
}

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 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
		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(){
					ajaxpage(this.getAttribute("href"), this.getAttribute("rel"), this)
					loadobjs(this.getAttribute("rev"))
					this.blur();
					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
				}
			}
		}
	}
}