/***********************************************
* 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 current_menu;

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

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

function SwitchMenu(obj){
	if(document.getElementById){
		current_menu = obj;
		var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		var inc = 1;
		while ( document.getElementById("sub"+inc) ){
			var el = document.getElementById("sub"+inc);
			if ( ("sub"+inc) == obj ){
				if(el.style.display != "block"){ //DynamicDrive.com change
					for (var i=0; i<ar.length; i++)	if (ar[i].className=="submenu") ar[i].style.display = "none"; 
					el.style.display = "block";
				}else el.style.display = "none";
			}else if (document.getElementById("sub"+inc).style.display=="block") el.style.display = "none";
			inc++;
		}//while
	}//if(document.getElementById)
}

function SwitchHMenu(hSubFNum, vSubFNum){
//	alert(hSubFNum + " - " + ("h_" + current_menu ) + " - " + vSubFNum );
	if ( hSubFNum != ("h_" + current_menu ) ) SwitchMenu(vSubFNum);
}

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 && cookievalue!=""){
			document.getElementById(cookievalue).style.display="block";
			current_menu = cookievalue;	
		}
	}
}

function savemenustate(){
	var inc=1, blockid=""
	while (document.getElementById("sub"+inc)){
		if (document.getElementById("sub"+inc).style.display=="block"){
			blockid="sub"+inc
			break
		}
		inc++
	}//while
	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