var expand_replie = new Image()
var expand_deplie = new Image()
expand_replie.src = "/img/_plus.gif"
expand_deplie.src = "/img/_minus.gif"

var enablepersist="on" //Enable saving state of content structure using session cookies? (on/off)
var collapseprevious="no" //Collapse previously open content when opening present? (yes/no)
//var allopened //  boolean : if true all divs are opened.

if (document.getElementById){
	if(!allopened) {
		document.write('<style type="text/css">')
		document.write('.switchcontent{display:none;}')
		document.write('</style>')
	}
	else {
		document.write('<style type="text/css">')
		document.write('.switchcontent{display:block;}')
		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"
		if (document.getElementById('img_' + cid)) {
			document.getElementById('img_' + cid).src = (document.getElementById('img_' + cid).src==expand_replie.src) ? expand_deplie.src : expand_replie.src;
		}
	}
}

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