self.onError=null;

currentX = currentY = 0; 

whichIt = null; 

lastScrollX = 0; lastScrollY = 0;

NS = (document.layers) ? 1 : 0;

IE = (document.all) ? 1: 0;

<!-- STALKER CODE -->

function heartBeat() {

if(IE) { 

diffY = document.body.scrollTop; 

diffX = 0; 

}

if(NS) { diffY = self.pageYOffset; diffX = self.pageXOffset; }

if(diffY != lastScrollY) {

percent = .1 * (diffY - lastScrollY);

if(percent > 0) percent = Math.ceil(percent);

else percent = Math.floor(percent);

if(IE) document.all.floater.style.pixelTop += percent;

if(NS) document.floater.top += percent; 

lastScrollY = lastScrollY + percent;

}

if(diffX != lastScrollX) {

percent = .1 * (diffX - lastScrollX);

if(percent > 0) percent = Math.ceil(percent);

else percent = Math.floor(percent);

if(IE) document.all.floater.style.pixelLeft += percent;

if(NS) document.floater.top += percent;

lastScrollY = lastScrollY + percent;

} 

}