function product_list_menu(){
$(" #product-list-menu ul ").css({display: "none"}); // Opera Fix
$(" #product-list-menu li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show("fast");
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}