var preload=new Image();preload.src='contract.gif'

	var enablepersist="off"
	var collapseprevious="yes"
	
	if (document.getElementById){
	document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;}')
	document.write('</style>')
	}
	
	function getElementbyClass(classname){
	var temp=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)
	temp[inc++]=alltags[i]
	}
	return temp
	}
	
	function contractcontent(omit){
	var el,inc=0
	while (el=ccollect[inc]){
	if (el.id!=omit)
	el.style.display="none"
	inc++
	}
	inc=0
	while (el=switcher[inc])
	{
	el.src=el.src.replace(/contract/, 'expand')
	inc++
	}
	}
	
	function expandcontent(cid,el){
	if (typeof ccollect!="undefined"){
	if (collapseprevious=="yes")
	contractcontent(cid)
	var content=document.getElementById(cid),bWhich=content.style.display!="block"
	content.style.display=(bWhich)? "block" : "none"
	var switcher=document.getElementById('switcher'+cid)
	//switcher.src=(bWhich)?switcher.src.replace(/expand/, 'contract'):switcher.src.replace(/contract/, 'expand');
	}
	}
	
	function revivecontent(){
	contractcontent("omitnothing")
	selectedItem=getselectedItem()
	selectedComponents=selectedItem.split("|")
	for (var id,switcher,i=0; i<selectedComponents.length-1; i++)
	{
	id=selectedComponents[i]
	document.getElementById(id).style.display="block"
	switcher=document.getElementById('switcher'+id)
	switcher.src=switcher.src.replace(/expand/, 'contract');
	}
	}
	
	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(){
	ccollect = getElementbyClass("switchcontent")
	switcher=getElementbyClass("switcher")
	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