根据ip地址跳转域名

<script src="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js" charset="GB2312"></script>

     <script type=text/javascript>if (remote_ip_info.city == "佛山") {

         window.location.href = "http://m.XXXX.com";

       } else if (remote_ip_info.city == "长沙") {

         window.location.href = "http://m.XXXX.com";

       }</script>