function wheel(event)
{
	var delta = 0;
	if (!event)								// For IE
	{
		event = window.event;
	}
	if (event.wheelDelta)					// IE/Opera
	{ 
		delta = event.wheelDelta/120;
	}
	else if (event.detail)					// Mozilla case
	{
		delta = -event.detail/3;
	}
	if (delta) document.body.scrollLeft -= delta*50;
	if (event.preventDefault) event.preventDefault();
	event.returnValue = false;
}

if (window.addEventListener) window.addEventListener('DOMMouseScroll', wheel, false);

window.onmousewheel = document.onmousewheel = wheel;