function heartBeat() {
	if(IE) { diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
	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.left += percent;
				lastScrollX = lastScrollX + percent;
		}       
}
function checkFocus(x,y) { 
		stalkerx = document.floater.pageX;
		stalkery = document.floater.pageY;
		stalkerwidth = document.floater.clip.width;
		stalkerheight = document.floater.clip.height;
		if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight))) return true;
		else return false;
}
function grabIt(e) {
		if(IE) {
				whichIt = event.srcElement;
				while (whichIt.id.indexOf("floater") == -1) {
						whichIt = whichIt.parentElement;
						if (whichIt == null) { return true; }
			}
				whichIt.style.pixelLeft = whichIt.offsetLeft;
			whichIt.style.pixelTop = whichIt.offsetTop;
				currentX = (event.clientX + document.body.scrollLeft);
				currentY = (event.clientY + document.body.scrollTop);   
		} else { 
		window.captureEvents(Event.MOUSEMOVE);
		if(checkFocus (e.pageX,e.pageY)) { 
				whichIt = document.floater;
				StalkerTouchedX = e.pageX-document.floater.pageX;

				StalkerTouchedY = e.pageY-document.floater.pageY;
		} 
		}
	return true;
}
function moveIt(e) {
		if (whichIt == null) { return false; }
		if(IE) {
			newX = (event.clientX + document.body.scrollLeft);
			newY = (event.clientY + document.body.scrollTop);
			distanceX = (newX - currentX);    distanceY = (newY - currentY);
			currentX = newX;    currentY = newY;
			whichIt.style.pixelLeft += distanceX;
			whichIt.style.pixelTop += distanceY;
				if(whichIt.style.pixelTop  < document.body.scrollTop)  whichIt.style.pixelTop  = document.body.scrollTop;
				if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
				if(whichIt.style.pixelLeft > document.body.offsetWidth  - document.body.scrollLeft - whichIt.style.pixelWidth  - 20) whichIt.style.pixelLeft = document.body.offsetWidth  - whichIt.style.pixelWidth - 20;
				if(whichIt.style.pixelTop  > document.body.offsetHeight + document.body.scrollTop  - whichIt.style.pixelHeight - 5)  whichIt.style.pixelTop  = document.body.offsetHeight + document.body.scrollTop  - whichIt.style.pixelHeight - 5;
				event.returnValue = false;
		} else { 
				whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
		if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
		if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
		if( (whichIt.left + whichIt.clip.width)  >= (window.innerWidth+self.pageXOffset-17))  whichIt.left = ((window.innerWidth+self.pageXOffset) -whichIt.clip.width)-17;
		if( (whichIt.top  + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top  = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
		return false;
		}
	return false;
}
function dropIt() {
		whichIt = null;
	if(NS) window.releaseEvents (Event.MOUSEMOVE);
	return true;
}