// JavaScript Document
$(function(){
	var weburl=$("#weburl").val();
	//改变背景
	$(".top_nav li a").hover(function () {
		$(this).css({"background":"url("+weburl+"images/top_nav_li_hover.jpg) no-repeat right center;"});
	},function () {
		//$(this).css({"background":"url("+weburl+"images/top_nav_li_bg.jpg) no-repeat right center;"});
		$(this).css({"background":"#fff;"});
	});
	//显示子菜单
	$(".top_nav li:eq(1)").mouseover(function(){
		$(".sub1").slideDown("fast");
		$(".sub2").slideUp("fast");
	});
	$(".top_nav li:eq(4)").mouseover(function(){
		$(".sub2").slideDown("fast");
		$(".sub1").slideUp("fast");
	});
});