var menubg = new Image();
menubg.src = 'http://dc.ec.uiuc.edu/img/itemover.jpg';

function menuOver(li){
	li.style.backgroundImage = "url(http://dc.ec.uiuc.edu/img/itemover.jpg)";
}

function menuOut(li){
	li.style.backgroundImage = "url(http://dc.ec.uiuc.edu/img/item.jpg)";
}

function menuGo(address){
	window.location=address;
}