JS省市縣三級聯動

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title></title>
<style>
a,body,select{font-size:12px;text-decoration:none;}
a,pre{color:#808080;}
body{background:#efefef;}
</style>
<pre>
　
<script language="javascript" src="PCASClass.js"></script>
<fieldset style="padding:5px;">
<legend>省市地區聯動</legend>
地址：<select name="province3"></select><select name="city3"></select><select name="area3"></select><br>
</fieldset>
<script language="javascript" defer>
new PCAS("province3","city3","area3");
</script>
<br>
</body>