/***********************************************
 * Switch Menu script- by Martial B of http://getElementById.com/
 * Modified by Dynamic Drive for format & NS4/IE4 compatibility
 * Many modifications have been made by erdem agaoglu to make double folding possible
 * Visit http://www.dynamicdrive.com/ for full source code
 ***********************************************/

var persistmenu="yes" 
var persisttype="sitewide" 

if (document.getElementById){ 
	document.write('<style type="text/css">\n')
		document.write('.ssubmenu{display: none;}\n')
		document.write('.msubmenu{display: none;}\n')
		document.write('</style>\n')
}

function SwitchMenu(obj,mdiv){
	if(document.getElementById){
		var el = document.getElementById(obj);
		var ar = document.getElementById(mdiv).getElementsByTagName("div");
		if(el.style.display != "block"){
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="ssubmenu" || ar[i].className=="msubmenu")
					ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

function SwitchMenuAndFollowLink(obj,mdiv,link){
	if(document.getElementById){
		var el = document.getElementById(obj);
		var ar = document.getElementById(mdiv).getElementsByTagName("div");
		if(el.style.display != "block"){
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="ssubmenu" || ar[i].className=="msubmenu")
					ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
	aboutcontents.location = link;
}

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 onloadfunction(){
	if (persistmenu=="yes"){
		var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
			var cookievalue=get_cookie(cookiename)
			if (cookievalue!="")
				document.getElementById(cookievalue).style.display="block"
	}
}

function savemenustate(){
	var inc=1, blockid=""
		while (document.getElementById("sub"+inc)){
			if (document.getElementById("sub"+inc).style.display=="block"){
				blockid="sub"+inc
					break
			}
			inc++
		}
	var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
		var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
		document.cookie=cookiename+"="+cookievalue
}

if (window.addEventListener)
	window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
	window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
	window.onload=onloadfunction

	if (persistmenu=="yes" && document.getElementById)
	window.onunload=savemenustate