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";
    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);


//显示样式
document.writeln("<style type=\"text\/css\">");
document.writeln("#leftDiv{width:120px;height:180px;background-color:#fff;position:absolute;}");
document.writeln("<\/style>");
//以下为主要内容
document.writeln("<div id=\"leftDiv\" style=\"top:200px;left:5px\">");
//------左侧各块开始
document.writeln("<div id=\"left1\" class=\"itemFloat\">");
document.writeln("<a href=\"/zt/201108/\" target=\"_blank\"><img src=\"/images/all/c021.gif\"></a>");
document.writeln("<\/div>");
//------左侧各块结束
document.writeln("<\/div>");