$.ajax({
            type:"get",
            url: "/index/getTop.html",
            dataType: "html",
            success: function(data, textStatus){       
                $("#Header").html(data);
                 initSub();
            }
          }
        );
        function initSub() {
          	function megaHoverOver(){
			  $(this).find(".sub").stop().fadeTo('fast', 1).show();
			}
			function megaHoverOut(){ 
			  $(this).find(".sub").stop().fadeTo('fast', 0, function() {
				  $(this).hide();
			  });
			}
			var config = {    
				 sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)    
				 interval: 20, // number = milliseconds for onMouseOver polling interval    
				 over: megaHoverOver, // function = onMouseOver callback (REQUIRED)    
				 timeout: 150, // number = milliseconds delay before onMouseOut    
				 out: megaHoverOut // function = onMouseOut callback (REQUIRED)    
			};
			$("ul#topnav li.m .sub").css({'opacity':'0'});
			$("ul#topnav li.m").hoverIntent(config);
        }