//这一行写了这个DIV是绝对定位,最好再加一下z-index;边框为1px的实线黑色边;距右边有0PX; ID=AD;
<script language="JavaScript" type="text/javascript">
function rightBottomAd(){
var abc = document.getElementById("ad");
abc.style.top = document.documentElement.scrollTop+document.documentElement.clientHeight-20+"px";//20是这个层的高度;
setTimeout(function(){rightBottomAd();},50);
}
rightBottomAd();
</script>
