// Variables

var base = "/images/";
var norm = new Array();
var over = new Array();
var links = new Array(
	'shop',
	'login',
	'logout',
	'account',
	'cart',
	'checkout',
	'faq',
	'friends',
	'pictures'
);

// Pre-load

if(document.images) {
	for(i = 0; i < links.length; i++) {
		norm[i] = new Image;
		norm[i].src = base + "nav_" + links[i] + "_dn.gif";
		over[i] = new Image;
		over[i].src = base + "nav_" + links[i] + "_up.gif";
	}
}

// Functions

function overgo(no) {
	if(document.images) {
		document.images[links[no]].src = over[no].src;
	}
}

function outgo(no) {
	if(document.images) {
		document.images[links[no]].src = norm[no].src;
	}
}