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("lovexin12_1").style.top=parseInt(document.getElementById("lovexin12_1").style.top)+percent+"px";

lastScrollY=lastScrollY+percent;
//alert(lastScrollY);
}
suspendcode12_1="<DIV id=\"lovexin12_1\" style='right:10px;position:absolute;top:100px;'><img  style=\"cursor: pointer\" onclick=\"javascript:window.open('http://b.qq.com/webc.htm?new=0&sid=800009092&eid=2188z8p8p8p8p808p808K&o=http://home.1312.com/contact.htm&q=7', '_blank', 'height=544, width=644,toolbar=no,scrollbars=no,menubar=no,status=no');\"  border=\"0\" SRC=\"http://image.1312.com/images/qq_kefu.png\"></div>"
document.write(suspendcode12_1);
window.setInterval("heartBeat()",1);