self.onError=null;
	currentX = currentY = 0;
	whichIt = null;
	lastScrollX = 0; lastScrollY = 0;
	NS = (document.layers) ? 1 : 0;
	IE = (document.all) ? 1: 0;
	function tikker() {
	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.drijver.style.pixelTop += percent;
	if(NS) document.drijver.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.drijver.style.pixelLeft += percent;
	if(NS) document.drijver.left += percent;
	lastScrollX = lastScrollX + percent;
		}
	}
	function checkFocus(x,y) {
	plaatjex = document.drijver.pageX;
	plaatjey = document.drijver.pageY;
	plaatjewidth = document.drijver.clip.width;
	plaatjeheight = document.drijver.clip.height;
	if( (x > plaatjex && x < (plaatjex+plaatjewidth)) && (y > plaatjey && y < (plaatjey+plaatjeheight))) return true;
	else return false;
	}
	function oppakken(e) {
		if(IE) {
			whichIt = event.srcElement;
			while (whichIt.id.indexOf("drijver") == -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.drijver;
	PlaatjeRaaktX = e.pageX-document.drijver.pageX;
	PlaatjeRaaktY = e.pageY-document.drijver.pageY;
	}
		}
	return true;
	}
	function verplaatsen(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-PlaatjeRaaktX,e.pageY-PlaatjeRaaktY);
	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 neerzetten() {
		whichIt = null;
	if(NS) window.releaseEvents (Event.MOUSEMOVE);
	return true;
	}

	if(NS) {
		window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
		window.onmousedown = oppakken;
	 	window.onmousemove = verplaatsen;
		window.onmouseup = neerzetten;
	}
	if(IE) {
		document.onmousedown = oppakken;
	 	document.onmousemove = verplaatsen;
		document.onmouseup = neerzetten;
	}

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