<script>
if(prompt("请输入密码:")!="undefineed")
location="http://sina.com.cn"
else
location="http://lucky.myrice.com"
</script>
if(prompt("请输入密码:")!="undefineed")
location="http://sina.com.cn"
else
location="http://lucky.myrice.com"
</script>
调试欢乐多
if(showModalDialog("a.htm"))
location="http://sina.com.cn"
else
location="http://lucky.myrice.com"
</script>
好像要加入一句"response.AddHeader 'www-Authenticate','trim'",不大清楚