根据IP显示城市

<script type="text/javascript" src="http://fw.qq.com/ipaddress" charset="gb2312"></script>

<script type="text/javascript">

alert(IPData[2]+" "+IPData[3])

</script>

如果在utf-8编码的页面引用,会产生乱码,解决办法就是加上 charset="gb2312"