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

var persistmenu="yes"; //"yes" or "no". Make sure each SPAN content contains an incrementing ID starting at 1 (id="sub1", id="sub2", etc)
var persisttype="sitewide"; //enter "sitewide" for menu to persist across site, "local" for this page only

function SwitchMenu(obj)
{
	if(document.getElementById)
	{
		var el = document.getElementById(obj);
		var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		if(el.style.display != "block")
		{ //DynamicDrive.com change
			for (var i = 0; i < ar.length; i++)
			{
				if (ar[i].className=="submenu") //DynamicDrive.com change
				{
					ar[i].style.display = "none";
				}
			}
			el.style.display = "block";
		}
		else
		{
			el.style.display = "none";
		}
	}
}

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 loadMenuState()
{
	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 (persistmenu=="yes" && document.getElementById)
{
	window.onunload=saveMenuState;
}