日期:2014-05-17 浏览次数:20540 次
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*/}
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.getElementById("lovexin12").style.top=parseInt(document.getElementById
("lovexin12").style.top)+percent+"px";
document.getElementById("lovexin14").style.top=parseInt(document.getElementById
("lovexin14").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
}
window.setInterval("heartBeat()",1);
<script src="/js/dui.js" type="text/javascript"></script>
<div id="lovexin12" style='left: 5px; position: absolute; top: 20px; display: none'>
</div>
<div id="lovexin14" style='right: 5px; position: absolute; top: 20px;'>
</div>