var enablepersist="on";
var collapseprevious="no";
if (document.getElementById)
	{
		document.write('<style type="text/css">');
		document.write('.switchcontent{display:none;}');
		document.write('</style>')
	}

function getElementbyClass(classname)
	{
		ccollect=new Array() ; 
		var inc=0;
		var alltags=document.all? document.all:document.getElementsByTagName("*")
			for (i=0; i<alltags.length;i++){if (alltags[i].className==classname)
			ccollect[inc++]=alltags[i]}
	}

function contractcontent(omit)
	{
		var inc=0;
		while (ccollect[inc])
		{
			if (ccollect[inc].id!=omit)
			ccollect[inc].style.display="none";inc++
		}
	}


function expandcontent(cid)
	{
		if (typeof ccollect!="undefined")
		{
			if (collapseprevious=="yes")
				contractcontent(cid);
				document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
		}
	}



function revivecontent()
	{
		contractcontent("omitnothing");
		selectedItem=getselectedItem();
		selectedComponents=selectedItem.split("|")
			for (i=0; i<selectedComponents.length-1; i++) document.getElementById(selectedComponents[i]).style.display="block"
	}

function get_cookie(Name) 
	{
		var search=Name + "=";
		var returnvalue="";
		if (document.cookie.length > 0) 
		{
			offset=document.cookie.indexOf(search)
			if (offset != -1) 
			{
				offset += search.length
				end=document.cookie.indexOf(";", offset);if (end == -1) end=document.cookie.length;returnvalue=unescape(document.cookie.substring(offset, end))
			}
		}
		return returnvalue;}


function getselectedItem()
	{
		if (get_cookie(window.location.pathname) != "")
		{
			selectedItem=get_cookie(window.location.pathname)
		return selectedItem
		}
		else ; return ""
	}

function saveswitchstate()
	{
		var inc=0, selectedItem="";
		while (ccollect[inc])
		{
			if (ccollect[inc].style.display=="block")
			selectedItem+=ccollect[inc].id+"|" ; inc++
		}  
		document.cookie=window.location.pathname+"="+selectedItem
	}

function do_onload()
	{
		getElementbyClass("switchcontent") ; 
		if (enablepersist=="on" && typeof ccollect!="undefined") ; 
		revivecontent()
	}
	if (window.addEventListener) window.addEventListener("load", do_onload, false)
	else if (window.attachEvent)
	window.attachEvent("onload", do_onload)
	else if (document.getElementById)
	window.onload=do_onload
	if (enablepersist=="on" && document.getElementById)
	window.onunload=saveswitchstate