網站頁面兩側漂浮的js代碼

<SCRIPT language=JavaScript>
suspendcode="<DIV id=lovexin1 style='Z-INDEX: 10; LEFT: 6px; POSITION: absolute; TOP: 15px; width: 100; height: 300px;' ><img src='images/close.gif' onClick='javascript:window.hide()' width='100' height='14' border='0' vspace='3' alt='關閉對聯廣告'><a href='HTTP://www.jzread.com/' target='_blank'><img src='images/ad_fa.jpg' width='100' height='300' border='0'></a></DIV>"
document.write(suspendcode);

suspendcode="<DIV id=lovexin2 style='Z-INDEX: 10; LEFT: 896px; POSITION: absolute; TOP: 15px; width: 100; height: 300px;' ><img src='images/close.gif' onClick='javascript:window.hide()' width='100' height='14' border='0' vspace='3' alt='關閉對聯廣告'><a href='HTTP://www.jzread.com/' target='_blank'><img src='images/ad_fb.jpg' width='100' height='300' border='0'></a></DIV>"
document.write(suspendcode);

lastScrollY=0;
function heartBeat(){
diffY=document.body.scrollTop;
percent=.3*(diffY-lastScrollY);
if(percent >0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.all.lovexin1.style.pixelTop+=percent;
document.all.lovexin2.style.pixelTop+=percent;
lastScrollY=lastScrollY+percent;
}
function hide() 
{  
lovexin1.style.visibility="hidden";
lovexin2.style.visibility="hidden";
}
window.setInterval("heartBeat()",1);
</script>