var timeout = 250;
var node;
var timer;
function hide_item(){
$(node).children("ul").hide();
}
$(document).ready(function(){
	$("#nav > li")
	.mouseover(function(){
		window.clearTimeout(timer);
		if(typeof node!='undefined')hide_item();
		window.node=this;
		$(node).children("#product_nav").show();
	})
	.mouseout(function(){
		window.timer = window.setTimeout('hide_item()', timeout);
	});
});