复制代码 代码如下:
<script language="JavaScript" type="text/javascript"><br>lastScrollY=0;<br>function heartBeat(){ <br>var diffY;<br>if (document.documentElement && document.documentElement.scrollTop)<br>diffY = document.documentElement.scrollTop;<br>else if (document.body)<br>diffY = document.body.scrollTop<br>else<br>{/*Netscape stuff*/} <p>//alert(diffY);<br>percent=.1*(diffY-lastScrollY); <br>if(percent>0)percent=Math.ceil(percent); <br>else percent=Math.floor(percent); <br>document.getElementById("ad_left").style.top=parseInt(document.getElementById <p>("ad_left").style.top)+percent+"px";<br>document.getElementById("ad_right").style.top=parseInt(document.getElementById <p>("ad_left").style.top)+percent+"px"; <p>lastScrollY=lastScrollY+percent; <br>//alert(lastScrollY);<br>}<br>function hidead(num)<br>{<br>showad = false;<br>if(num==1)<br>document.getElementById("ad_left").style.display="none";<br>else if(num==2)<br>document.getElementById("ad_right").style.display="none";<br>}<br>var ClosebuttonHtml1 = '<div style="position: absolute;bottom:0px;right:25px;margin:2px;padding:2px;z-index:2000;"><a href="javascript:void(0);" onclick="hidead(1)" style="color:#ffffff;text-decoration:none;font-size:12px;">关闭</script>
var ClosebuttonHtml2 = '';
ad1=""
ad2="
document.write(ad1);
document.write(ad2);
window.setInterval("heartBeat()",1);
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