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 = 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)
{ 
    slidingx = document.floater.pageX;
    slidingy = document.floater.pageY;
    slidingwidth = document.floater.clip.width;
    slidingheight = document.floater.clip.height;
    if( (x > slidingx && x < (slidingx+slidingwidth)) && (y > slidingy && y < (slidingy+slidingheight))) 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;
			slidingTouchedX = e.pageX-document.floater.pageX;
			slidingTouchedY = 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-slidingTouchedX,e.pageY-slidingTouchedY);
	    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)
{
    window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
    //window.onmousedown = grabIt;
    window.onmousemove = moveIt;
    //window.onmouseup = dropIt;
}

if(IE)
{
    //document.onmousedown = grabIt;
    document.onmousemove = moveIt;
    //document.onmouseup = dropIt;
}

if(NS || IE) action = window.setInterval("heartBeat()",5);