self.onError=null;
currentX = currentY = 0; 
whichIt = null; 
lastScrollX = 0; lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;

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;
   } 
} 

if(NS || IE) action = window.setInterval("heartBeat()",1);