');
document.write('
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}
function close_float_left(){backi.style.visibility='hidden';}
lastScrollY=0;
function heartBeat(){
diffY=document.documentElement.scrollTop;
percent=.1*(diffY-lastScrollY);
if(percent>0)percent=Math.ceil(percent);
else percent=Math.floor(percent);
document.all.backi.style.pixelTop+=percent;
lastScrollY=lastScrollY+percent;
}
if (!document.layers) {WriteQqStr();window.setInterval("heartBeat()",1);}
//-->