<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
 <title>渐变弹出层</title>
 <script type="text/javascript" src="common/jquery-1.2.6.min.js"></script>
 <link type="text/css" rel="stylesheet" href="common/common.css" />
 <style>
 /* 渐变弹出层 */
 #race{display:block;width:200px;height:50px;line-height:50px;text-align:center;background:#CCC;border:#555 1px solid;}
 .raceShow{background-color:#f1f1f1;border:solid 1px #ccc;position:absolute;display:none;width:300px;height:100px;padding:5px;font-size:12px;}#UpLayer span{border:#fff 1px solid; width:80px; padding:0 5px; line-height:20px; display:block;}
 #UpLayer ul{display:none;position:absolute;border:#ccc 1px solid;width:80px; padding:5px; line-height:20px; background:#f1f1f1; margin:-1px 0 0 0;}
 #UpLayer ul li{ border-bottom:#ccc 1px dashed;}
 </style>
 </head>
 <body>
 <script type="text/javascript">
 // 渐变弹出层
 $(document).ready(function(){
  var speed = 600;//动画速度
  $("#race a").click(function(event){//绑定事件处理
   event.stopPropagation();
   var offset = $(event.target).offset();//取消事件冒泡
   $("#racePop").css({ top:offset.top + $(event.target).height() + "px", left:offset.left });//设置弹出层位置
   $("#racePop").show(speed);//动画显示
  });
  $(document).click(function(event) { $("#racePop").hide(speed) });//单击空白区域隐藏
  $("#racePop").click(function(event) { $("#racePop").hide(speed) });//单击弹出层则自身隐藏 var objStr = "#UpLayer";
  $(objStr).mouseover(function(){$(objStr + " ul").show();});
  $(objStr).mouseout(function(){$(objStr + " ul").hide();});
 });
 </script>
     
 <!-- 渐变弹出层 -->
 <div id="race"><a href="#">点击</a></div>
 <div id="racePop" class="raceShow">这里是弹出层效果</div> 
<div id="UpLayer">
  <span><a href="javascript:void(0)">弹出层</a></span>
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     </ul> 
 </div></body>
 </html>