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+20; 
		diffX = document.body.scrollLeft;
	} 
	if(NS) 
	{ 
		diffY = self.pageYOffset; 
		diffX = self.pageXOffset; 
	} 
	if(diffY != lastScrollY+20) 
	{ 
		percent = .1 * (diffY - lastScrollY); 
		if(percent > 0) percent = Math.ceil(percent); 
		else percent = Math.floor(percent); 
		if(IE) document.all.SubNavDef.style.pixelTop += percent; 
		if(NS) document.SubNavDef.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.SubNavDef.style.pixelLeft += percent; 
		if(NS) document.SubNavDef.left += percent; 
		lastScrollX = lastScrollX + percent; 
	} 
} 

function checkFocus(x,y) 
{ 
	stalkerx = document.SubNavDef.pageX; 
	stalkery = document.SubNavDef.pageY; 
	stalkerwidth = document.SubNavDef.clip.width; 
	stalkerheight = document.SubNavDef.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("SubNavDef") == -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.SubNavDef; 
			StalkerTouchedX = e.pageX-document.SubNavDef.pageX; 
			StalkerTouchedY = e.pageY-document.SubNavDef.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; 
} 

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