插件名称：PCAS (Province City Area Selector 省、市、地区联动选择JS封装类) Ver 2.02 完整版
官方地址：http://www.popub.net/script/pcasunzip.html
使用说明：
演示地址：http://www.popub.net/script/pcasunzip.html
下载地址：http://www.popub.net/script/pcasunzip.js
应用说明:页面包含<script type=”text/javascript” src=”pcasunzip.js” charset=”gb2312″></script>
省市联动
new PCAS("Province","City")
new PCAS("Province","City","吉林省")
new PCAS("Province","City","吉林省","吉林市")
省市地区联动
new PCAS("Province","City","Area")
new PCAS("Province","City","Area","吉林省")
new PCAS("Province","City","Area","吉林省","松原市")
new PCAS("Province","City","Area","吉林省","松原市","宁江区")
new PCAS("Province","City","Area","","","")
省、市、地区对象取得的值均为实际值。
注：省、市、地区提示信息选项的值为””(空字符串)
使用案例：
<script type="text/javascript" src="pcasunzip.js" charset="gb2312"></script>
<select name="Province" ></select>
<select name="City"></select>
<select name="Area"></select>
<script language="javascript">
new PCAS("Province","City","Area","","","");
</script>
省：市：县：