//符合web标准且可关闭的多幅对联广告
//Modified By Star	2009 QQ:26405485
<!--
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("leftDiv").style.top = parseInt(document.getElementById("leftDiv").style.top)+percent+"px";
document.getElementById("rightDiv").style.top = parseInt(document.getElementById("rightDiv").style.top)+percent+"px";
lastScrollY=lastScrollY+percent;
//alert(lastScrollY);
}
//下面这段删除后，对联将不跟随屏幕而移动。
window.setInterval("heartBeat()",1);
//-->
//关闭按钮
function close_left1(){
    left1.style.visibility='hidden';
    leftDiv.style.visibility='hidden';
}
function close_left2(){
    left2.style.visibility='hidden';
}
function close_right1(){
    right1.style.visibility='hidden';
    rightDiv.style.visibility='hidden';
}
function close_right2(){
    right2.style.visibility='hidden';
}
//显示样式
document.writeln("<style type=\"text\/css\">");
document.writeln("#leftDiv,#rightDiv{width:97px;height:233px;background-color:#fff;position:absolute;}");
document.writeln(".itemFloat{width:97px;height:auto;line-height:5px}");
document.writeln("<\/style>");
//以下为主要内容
//document.writeln("<div id=\"leftDiv\" style=\"top:160px;left:5px\">");
//------左侧各块开始
//---Left1
//document.writeln("<div id=\"left1\" class=\"itemFloat\">");
//document.writeln("<a href=\"javascript:close_left1();\"><img border=0 src=images/AD_01.jpg width=100 height=20></a><br>");
//document.writeln("<a target=_blank href=http://www.pku.edu.cn/><img border=0 src=ad/bj.jpg width=97 height=233></a>");
//document.writeln("<\/div>");
//---L2 多个
//document.writeln("<div id=\"left2\" class=\"itemFloat\">");
//document.writeln("<a target=_blank href=http://www.jsweb8.cn><img border=0 src=http://www.0512edu.com.cn/ads/img/adimg/dll01.gif></a>");
//document.writeln("<br><a href=\"javascript:close_left2();\" title=\"关闭上面的广告\">×<\/a>");
//document.writeln("<\/div>");
//------左侧各块结束
document.writeln("<\/div>");
document.writeln("<div id=\"rightDiv\" style=\"top:160px;right:5px\">");
//------右侧各块结束
document.writeln("<div id=\"right1\" class=\"itemFloat\">");
//document.writeln("<a href=\"javascript:close_right1();\"><img border=0 src=images/ADa_01.jpg width=100 height=20></a><br>");
document.writeln("<a target=_blank href=http://www.hbmed-edu.com/wsbm.asp><img border=0 src=img/ADA.jpg width=97 height=233></a>");
document.writeln("<\/div>");
//---R2
//document.writeln("<div id=\"right2\" class=\"itemFloat\">");
//document.writeln("<a target=_blank href=http://www.jsweb8.cn><img border=0 src=http://www.0512edu.com.cn/ads/img/adimg/dlr01.gif></a>");
//document.writeln("<br><a href=\"javascript:close_right2();\" title=\"关闭上面的广告\">×<\/a>");
//document.writeln("<\/div>");
//------右侧各块结束
document.writeln("<\/div>");