// JavaScript Document



//导航下拉菜单切换效果
$(document).ready(function(){
	jQuery.navlevel2 = function(level1,dytime) {
		
	  $(level1).mouseenter(function(){
		  varthis = $(this);
		  delytime=setTimeout(function(){
			varthis.find('ul').slideDown();
		},dytime);
		
	  });
	  $(level1).mouseleave(function(){
		 clearTimeout(delytime);
		 $(this).find('ul').slideUp();
	  });
	  
	};
  $.navlevel2("li.mainlevel",200);
});