suspendcode12="<DIV id=\"ad\" style='left:0px;POSITION:absolute;width:140x; height:116px;overflow:hidden'><a href=\"#\"><img src='../images/cont/mall.png' border='0' width=140 height=116></a></div>"
document.write(suspendcode12); 
function rightBottomAd(){
var abc = document.getElementById("ad");
abc.style.top = document.documentElement.scrollTop+document.documentElement.clientHeight-160+"px";//68是这个层的高度；
setTimeout(function(){rightBottomAd();},1);
}
rightBottomAd();