鼠標懸停 圖片自動放大功能 jquery

<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<style>
	ul,li{ list-style:none; float:left; }
</style>
<script>
$(function(){        
	$("#gallery li").mouseover(function(){
		var y = $(this).offset().top+50;
		var x = $(this).offset().left+50;
		var imgsrc = $(this).children().attr("src");
		var html = "<div id='pop' style='position:absolute; top:"+y+"px;left:"+x+"px;'> <img src='"+imgsrc+"' width='400' height='300'/></div>";
		$("body").append(html);
	});
	$("#gallery li").mouseout(function(){
		$("#pop").remove();
	});    
})
</script>
<ul id="gallery">
  <li><img src="http://m2.quanjing.com/2m/sps009/4251r-4561.jpg" width="60" height="60"></li>
</ul>