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

var aryOffImages = new Array();
var aryOnImages = new Array();
var mnuHome = 1;
var mnuAbout = 2;
var mnuProducts = 3;
var mnuContact = 4;
var mnuDelivery = 5;
var mnuCalculator = 6;
var mnuLumber = 7;
var mnuPanels = 8;

aryOffImages[mnuHome] = new Image();
aryOffImages[mnuHome].src = "/images/home_off.gif"; 
aryOnImages[mnuHome] = new Image();
aryOnImages[mnuHome].src = "/images/home_on.gif"; 

aryOffImages[mnuAbout] = new Image();
aryOffImages[mnuAbout].src = "/images/about_off.gif"; 
aryOnImages[mnuAbout] = new Image();
aryOnImages[mnuAbout].src = "/images/about_on.gif"; 

aryOffImages[mnuProducts] = new Image();
aryOffImages[mnuProducts].src = "/images/products_off.gif"; 
aryOnImages[mnuProducts] = new Image();
aryOnImages[mnuProducts].src = "/images/products_on.gif"; 

aryOffImages[mnuContact] = new Image();
aryOffImages[mnuContact].src = "/images/contact_off.gif"; 
aryOnImages[mnuContact] = new Image();
aryOnImages[mnuContact].src = "/images/contact_on.gif"; 

aryOffImages[mnuDelivery] = new Image();
aryOffImages[mnuDelivery].src = "/images/delivery_off.gif"; 
aryOnImages[mnuDelivery] = new Image();
aryOnImages[mnuDelivery].src = "/images/delivery_on.gif"; 

aryOffImages[mnuCalculator] = new Image();
aryOffImages[mnuCalculator].src = "/images/calculator_off.gif"; 
aryOnImages[mnuCalculator] = new Image();
aryOnImages[mnuCalculator].src = "/images/calculator_on.gif"; 

aryOffImages[mnuLumber] = new Image();
aryOffImages[mnuLumber].src = "/images/lumber_off.gif"; 
aryOnImages[mnuLumber] = new Image();
aryOnImages[mnuLumber].src = "/images/lumber_on.gif"; 

aryOffImages[mnuPanels] = new Image();
aryOffImages[mnuPanels].src = "/images/panels_off.gif"; 
aryOnImages[mnuPanels] = new Image();
aryOnImages[mnuPanels].src = "/images/panels_on.gif"; 

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

function swapImage(imgName, imgState){
	var x = eval("mnu" + imgName)

	if (imgState == "off")
		document.images[imgName].src = aryOffImages[x].src
	else
		document.images[imgName].src = aryOnImages[x].src;
}

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 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