function handle(delta) {
	var s = delta + ": ";
	if (delta > 0)
	{
		clickUp = true;
		scrollUp();
		clickUp = false;
	}
	else
	{
		clickDown = true;
		scrollDown();
		clickDown = false;
	}
}

function wheel(event){
	var delta = 0;
	if (!event) event = window.event;
	if (event.wheelDelta) {
		delta = event.wheelDelta/120; 
		if (window.opera) delta = -delta;
	} else if (event.detail) {
		delta = -event.detail/3;
	}
	if (delta)
	{
		handle(delta);
	}
	else
	{
		clearTimeout(timer);
		// Resetting variables
		clickUp = false;
		clickDown = false;
		clickDrag = false;
		clickAbove = false;
		clickBelow = false;
	}
}

/* Initialization code. */
if (window.addEventListener)
	window.addEventListener('DOMMouseScroll', wheel, false);
window.onmousewheel = document.onmousewheel = wheel;