<!-- 把下面代码加到<body>区域中 -->
<script>
var url=new Array("http://www.knowsky.com","http://www.sina.com.cn","http://www.163.com","http://www.cctv.com","http://www.sohu.com")
pnum=Math.floor(Math.random()*5)
location.href=url[pnum]
</script>
<!-- 把下面代码加到<body>区域中 -->
<script>
var url=new Array("http://www.knowsky.com","http://www.sina.com.cn","http://www.163.com","http://www.cctv.com","http://www.sohu.com")
pnum=Math.floor(Math.random()*5)
location.href=url[pnum]
</script>