页面表单提交省市区

页面引用：
<script type="text/javascript" src="js/PCASClass.js"></script>

<script>
$(document).ready(function(){
new PCAS("province","city","district");
});

</script>

html代码：

 1 <div class="selectBox">
 2                         <div class="province">
 3                         <select  ></select>
 4                         </div>
 5                         <div class="city">
 6                         <select  >
 7                             </select> 
 8                         </div>
 9                         <div class="district">
10                         <select  >
11                             </select> 
12                         </div>
13                         <p class="clear"></p>
14                     </div>