self.onError=null;
    currentX = currentY = 0;
    whichIt = null;
    lastScrollX = 0; lastScrollY = 0;
    NS = (document.layers) ? 1 : 0;
    IE = (document.all) ? 1: 0;
    <!-- STALKER CODE sub_menu -->
    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);