移动的层消息框

<table style="position:absolute;background-color:#cccccc;width:360px;height:77px;z-index:88;left:230px;top:-144px;filter:Alpha(Opacity=100,style=2);color:red" id=MS23><tr><td align=center></td></tr></table>

<SCRIPT LANGUAGE=JavaScript>
var xs
function msg(n)
{
 MS23.cells[0].innerText=n
 xs=180
 sport()
}

function sport(){
 var a=self.document
 a.all.MS23.style.top=a.body.scrollTop+xs
 if(xs>-100)setTimeout('sport()',25)
 xs--
}

msg("魔王立江到此一游")
</SCRIPT>