/***********************************************
* Switch Menu script- by Martial B of http://getElementById.com/
* Modified by Dynamic Drive for format & NS4/IE4 compatibility
* Modified by Nick
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

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

function SwitchMenu(obj)
{
	if(document.getElementById)
	{
		var el = document.getElementById(obj);
		var ar = document.getElementById("masterdiv").getElementsByTagName("span");
		// alert(obj);
		if(el.style.display != "block")
		{ 
			el.style.display = "block";
		}
		else
		{
			// el.style.display = "none";  // eenmaal open, niet meer dicht
		}
	}
}

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