居于右侧底部广告

居于右侧底部小广告

<div style="position:absolute;border:1px solid #06C;right:0;z-index:1000" id="floatBox">红世</div>
<script language="JavaScript" type="text/javascript">
function rightAd(){
var floatBox = document.getElementById("floatBox");
floatBox.style.top = document.documentElement.scrollTop+document.documentElement.clientHeight-20+"px";//20是这个层的高度；
setTimeout(function(){rightAd();},50);
}
rightAd();
</script>