省市区三级联动

<tr>
<th>地址<font color='red'>*</font>:</th>
<td>
<style type="text/css">
body{ background:#ffffff;margin:0; padding:0; font-family:"微软雅黑", Arial,
Helvetica, sans-serif; }
a{ color:#006600; text-decoration:none;}
a:hover{color:#990000;}
.top{ margin:5px auto; color:#990000; text-align:center;}
.info select{ border:1px #cccccc solid; background:#FFFFFF;}
.info{ margin:5px;}
.info #show{ color:#3399FF; }
.bottom{ text-align:right; font-size:12px; color:#CCCCCC; 1000px;}
</style>
</head>
<body>
<div class="info">
<div>
<select id="s_province" name="s_province"></select>
<select id="s_city" name="s_city" ></select>
<select id="s_county" name="s_county"></select>
<script class="resources library" src="http://sandbox.runjs.cn/uploads/rs/267/g3ugugjp/area.js" type="text/javascript"></script>
<script type="text/javascript">_init_area();</script>
</div>
<div id="show"></div>
</div>
<script type="text/javascript">
var Gid = document.getElementById ;
var showArea = function(){
Gid('show').innerHTML = "<h3>省" + Gid('s_province').value + " - 市" +
Gid('s_city').value + " - 县/区" +
Gid('s_county').value + "</h3>"
}
Gid('s_county').setAttribute('onchange','showArea()');
</script>
</body>
</td>
</tr>
原文地址:https://www.cnblogs.com/maxlg/p/9377850.html