var scrollDisabled = false;

function disableScroll(setTo){	
	//alert("disableScroll");
	scrollDisabled = setTo;
	
}

function onMouseWheel(event)
{
	if (!event)
		event = window.event;

	if (scrollDisabled) {
		return cancelEvent(event);
	}

	return true;
}

function cancelEvent(e)
{
	e = e ? e : window.event;
	if (e.stopPropagation){
		e.stopPropagation();		
	}
	if (e.preventDefault){		
		e.preventDefault();
	}
	e.cancelBubble = true;
	e.cancel = true;
	e.returnValue = false;
	
	return false;
	
}

if (window.addEventListener) window.addEventListener('DOMMouseScroll', onMouseWheel, false);
window.onmousewheel = document.onmousewheel = onMouseWheel;