<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<style type = "text/css">
*{margin:0px;padding:0px;}
input{width:300px;height:28px;border:1px solid #ccc;border-radius:4px;}
div{width:300px;margin:60px auto;position:relative;}
ul{display:none;width:100%;list-style:none;position:absolute;top:32px;border:1px solid #ccc;}
ul li{height:30px;border-bottom:1px solid #ccc;line-height:30px;}
ul li:last-child{ border-bottom:none; }
</style>
<script src = "jquery-1.4.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$("input").bind("click",function(event){
event.stopPropagation();
$("ul").show();
});
$("ul li").bind("click",function(event){
event.stopPropagation();
$("input")[0].value = $(this).text();
$("ul").hide();
});
$(document).bind("click",function(event){
$("ul").hide();
});
});
</script>
</head>
<body>
<div>
<input type = "text" />
<ul>
<li>选项一</li>
<li>选项二</li>
</ul>
<div>
</body>
</html>