var main_items = new Array("home", "about", "terms", "dealer", "contact", "cart");

var bttn_imgs = new Array();
var bttn_imgs_on = new Array();

for (i=0; i<main_items.length; i++)
{
	bttn_imgs["top_" + main_items[i] + "_off"] = new Image();
	bttn_imgs["top_" + main_items[i] + "_off"].src = "images/topnav/" + main_items[i] + ".jpg";
	bttn_imgs["top_" + main_items[i] + "_on"] = new Image();
	bttn_imgs["top_" + main_items[i] + "_on"].src = "images/topnav/" + main_items[i] + "_on.jpg";
}


function showImage(id, s)
{
	var itm = document.getElementById(id);
	itm.src = bttn_imgs[id + "_" + s].src;
}