Jquery创建层显示标题和内容且随鼠标移动而移动

<script src="Core/Public/js/jquery.js" type="text/javascript"></script> //引入Jquery 
<style type="text/css"> //编写创建的div的样式 
#tooltip 
{ 
position: absolute; 
border: 1px #solid #333; 
background: #f7f5d1; 
padding: 1px; 
color: #333; 
display: none; 
} 
</style> 
<script type="text/javascript"> //编写JS代码 
$(function () { 
var x = 10; 
var y = 10; 
$("a.tooltip").mouseover(function (e) { //当鼠标指针从元素上移入时 
this.myTitle = this.title; 
this.title = ""; 
var tooltip = "<div id='tooltip'>" + this.myTitle + "</div>"; 
$("body").append(tooltip); 
$("#tooltip").css({ "top": (e.pageY + y) + "px", "left": (e.pageX + x) + "px" }).show("fast"); 
}).mouseout(function () { //当鼠标指针从元素上移开时 
this.title = this.myTitle; 
$("#tooltip").remove(); 
}).mousemove(function (e) { //当鼠标指针从元素上移动时 
$("#tooltip").css({ "top": (e.pageY + y) + "px", "left": (e.pageX + x) + "px" }); 
}); 
}); 
</script> 
//html代码 
<ul> 
<li><a href="#" class="tooltip" title="甜美宽松毛衣">1111111111111</a></li> 
<li><a href="#" class="tooltip" title="是撒啊得瑟得">2222222222222</a></li> 
</ul>