根据IP定位用户所在城市信息 从而动态改变省份和地址
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="keywords" content="ajax,jquery,省市联动,IP地址城市信息"/>
<meta name="description" content=""/>
<title>演示：根据IP定位用户所在城市信息</title>
<script type="text/javascript" src="/js/jquery-1.8.3.min.js"></script>
<script type="text/javascript" src="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js"></script>
<script type="text/javascript">
var myprovince = remote_ip_info['province'];
var mycity = remote_ip_info['city'];
var mydistrict = remote_ip_info['district'];
$(function () {
$('#province').text(myprovince); //定义A链接里面相应的省份
switch (myprovince) {
case '广东':
$('#province').attr("href", "/gd")
break;
case '上海':
$('#province').attr("href", "/sh")
break;
case '北京':
$('#province').attr("href", "/bj")
break;
case '山东':
$('#province').attr("href", "/sd")
break;
case '江苏':
$('#province').attr("href", "/js")
break;
case '四川':
$('#province').attr("href", "/sc")
break;
case '浙江':
$('#province').attr("href", "/zj")
break;
case '河南':
$('#province').attr("href", "/hl")
break;
case '辽宁':
$('#province').attr("href", "/ln")
break;
case '陕西':
$('#province').attr("href", "/sx")
break;
case '湖北':
$('#province').attr("href", "/hb")
break;
case '湖南':
$('#province').attr("href", "/hn")
break;
case '福建':
$('#province').attr("href", "/fj")
break;
case '重庆':
$('#province').attr("href", "/cq")
break;
case '安徽':
$('#province').attr("href", "/ah")
break;
case '河北':
$('#province').attr("href", "/hb")
break;
case '山西':
$('#province').attr("href", "/sx")
break;
case '广西':
$('#province').attr("href", "/gx")
break;
case '江西':
$('#province').attr("href", "/jx")
break;
case '甘肃':
$('#province').attr("href", "/gs")
break;
case '天津':
$('#province').attr("href", "/tj")
break;
case '吉林':
$('#province').attr("href", "/jl")
break;
case '黑龙江':
$('#province').attr("href", "/hnj")
break;
case '海南':
$('#province').attr("href", "/hn")
break;
case '贵州':
$('#province').attr("href", "/gz")
break;
case '新疆':
$('#province').attr("href", "/xj")
break;
case '云南':
$('#province').attr("href", "/zn")
break;
case '宁夏':
$('#province').attr("href", "/nx")
break;
case '内蒙古':
$('#province').attr("href", "/nmg")
break;
case '青海':
$('#province').attr("href", "/qh")
break;
case '西藏':
$('#province').attr("href", "/xz")
break;
default:
$('#province').attr("href", "/")
}
}) </script>
</head>
<body>
<div class="demo"><h3>调用新浪IP库接口</h3>
<p>您所在的城市是：
<script>document.write(myprovince + ' ' + mycity);</script>
</p>
<a id="province" href="" target=_blank></a></div>
</body>
</html>