lastScrollY=0;

function heartBeat()
{ 
    var diffY;
    if (document.documentElement && document.documentElement.scrollTop)
	    diffY = document.documentElement.scrollTop;
    else if (document.body)
	    diffY = document.body.scrollTop
    else
    {/*Netscape stuff*/
    }
        //alert(diffY);
    percent=.1*(diffY-lastScrollY);
    if(percent>0)percent=Math.ceil(percent);
    else percent=Math.floor(percent);
    document.getElementById("LeftAd").style.top=parseInt(document.getElementById("LeftAd").style.top)+percent+"px";
    document.getElementById("RightAd").style.top=parseInt(document.getElementById("LeftAd").style.top)+percent+"px";
    lastScrollY=lastScrollY+percent;
    //alert(lastScrollY);
}

suspendcode12="<DIV id=LeftAd style='left:5px;POSITION:absolute;TOP:80px;font-size:12px;text-align:center;'><img src='images/indexads/left.jpg'width='120px' height='300px'><a style='font-size:12px;text-align:center;cursor: hand; display:block; background:#eee; width:120px;padding-top:2px;' href='javascript:void(0)' onclick='javascript:ClosedivLeft()' hidefocus='true'>关闭</a></div>"
suspendcode14="<DIV id=RightAd style='right:5px;POSITION:absolute;TOP:80px;font-size:12px;text-align:center;'><img src='images/indexads/right.jpg' width='120px' height='300px'><a style='font-size:12px;text-align:center;cursor: hand; display:block; background:#eee; width:120px;padding-top:2px;' href='javascript:void(0)' onclick='javascript:ClosedivRight()' hidefocus='true'>关闭</a></div>"
document.write(suspendcode12);
document.write(suspendcode14);
window.setInterval("heartBeat()",1);
    
function ClosedivLeft()
{
    LeftAd.style.visibility="hidden";
    RightAd.style.visibility="hidden";
}
function ClosedivRight()
{
    RightAd.style.visibility="hidden";
    LeftAd.style.visibility="hidden";
}