// JavaScript Document
// define the image variables and preload the images
// On images are at 0,2,4, Off images are at 1,3,5

var current_sub_menu = "";
var imageURL = new Array("/images/button_on.jpg","/images/button_off.jpg");
var imageInfo = new Array();

for(i=0;i<imageURL.length;i++)
{
	imageInfo[i] = new Image();
	imageInfo[i].src = imageURL[i];
}

// define the rollon and rolloff() functions
function rollon(xid)
{
//	document.getElementById('navdiv' + xid).src = eval("imageInfo[" + xid*2 + "].src");
    document.getElementById('navdiv' + xid).style.backgroundImage='url(/images/button_on.png)';
}
function rolloff(xid)
{
//	document.getElementById('navdiv' + xid).src = eval("imageInfo[" + (xid*2+1) + "].src");	
    document.getElementById('navdiv' + xid).style.backgroundImage='url(/images/button_off.png)';
}