JSVSIP

<script type="text/javascript" src="http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js"></script>
<script type="text/javascript">
    var t = remote_ip_info;
    alert( t.province )
    if( t.province == '广西' ){
        // ....
    }
</script>