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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
*{ margin:0px auto; padding:0px;}
#wai1{ width:100px; height:35px; border:1px solid #666; text-align:center; vertical-align:middle; line-height:35px;}
#wai1:hover{ cursor:pointer;}
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.xiang:hover{ cursor:pointer; background-color:#0F6}
</style>
</head>
<body>
<br />
<div id="wai1" onclick="dianji()"></div>
<div class="xiang" onclick="xuanzhong(this)">山东</div>
<div class="xiang" onclick="xuanzhong(this)">淄博</div>
<div class="xiang" onclick="xuanzhong(this)">淄川</div>
<div class="xiang" onclick="xuanzhong(this)">张店</div>
<div class="xiang" onclick="xuanzhong(this)">桓台</div>
</body>
</html>
<script type="text/jscript">
function dianji()
{
var a = document.getElementsByClassName("xiang");
for(i=0;i<a.length;i++)
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}
function xuanzhong(b)
{
var c = b.innerHTML;
document.getElementById("wai1").innerHTML = c ;
var a = document.getElementsByClassName("xiang");
for(i=0;i<a.length;i++)
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a[i].style.display = "none";
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</script>
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*{ margin:0px auto; padding:0px}
#xiala{ 200px; height:40px; border:1px solid #999;text-align:center; line-height:40px; vertical-align:middle;}
#xiala:hover{ cursor:pointer}
.list{ 200px; height:40px; text-align:center; line-height:40px; vertical-align:middle; border:1px solid #999; border-top-0px; display:none}
.list:hover{ cursor:pointer; background-color:#63C; color:white;}
</style>
</head>
<body>
<br />
<div style="500px; height:500px;">
<div id="xiala" onclick="showa()"></div>
<div class="list" onclick="xuan(this)">山东</div>
<div class="list" onclick="xuan(this)">北京</div>
<div class="list" onclick="xuan(this)">上海</div>
<div class="list" onclick="xuan(this)">深圳</div>
<div class="list" onclick="xuan(this)">广州</div>
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<script type="text/javascript">
function showa()
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</body>
</html>-->