document.writeln("<style type=\"text\/css\">");
document.writeln("<!--");
document.writeln("#left{}");//左边宽度、高度、边框样式
document.writeln("#right{width:110px;height:118px;background-color:#5e3827;border:0px solid #eee;}");//右边宽度、高度、边框样式
document.writeln("-->");
document.writeln("<\/style>");

lastScrollY=-110;//屏幕高度为scrollTop，屏幕1/2为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("left").style.top=parseInt(document.getElementById

("left").style.top)+percent+"px";
document.getElementById("right").style.top=parseInt(document.getElementById

("left").style.top)+percent+"px";

lastScrollY=lastScrollY+percent; 
//alert(lastScrollY);
}
leftxr="<DIV id=\"left\" style='POSITION:absolute;TOP:200px;'></div>"
rightxr="<DIV id=\"right\" style='right:2px;POSITION:absolute;TOP:120px;'><a href=\"http:\/\/www.chefschinabistro.com\/menu.htm\" target=_blank><img src=\"http:\/\/www.chefschinabistro.com\/ad.gif\" width=\"110\" height=\"100\" border=\"0\" \/><\/a><br><br><a onClick=\"right_hidden()\"><font class=\"b2\" style=\"color:#ffffff; font-size:12px; margin:2px 0 0 6px\">Close<\/font><\/a></div>"
document.write(leftxr); 
document.write(rightxr); 
//window.setInterval("heartBeat()",1);
window.setInterval("heartBeat()",3);
function left_hiddenDiv(){
	left.style.display='none';	
}
function right_hidden(){	
	right.style.visibility='hidden';
}