$(document).ready(function() {
   
   $("#navigation ul").hide();
   
   $("#navigation > li").hover(function(){
		$(this).find('ul:first').show();
		}, function(){
		$(this).find('ul:first').hide();
		});
		
	$(".product .products li img").hover(
		function() {	$(this).attr("src", $(this).attr("src").replace("products/thumbs/", "products/rollovers/"));	},
		function() {	$(this).attr("src", $(this).attr("src").replace("products/rollovers/", "products/thumbs/"));	});
	
 });