function handle(delta)
{
	var left = document.body.scrollLeft;
	window.scrollTo(getScrollXY()[0] + -1 * delta * 150, 0);
}

// from http://www.howtocreate.co.uk/tutorials/javascript/browserwindow
function getScrollXY()
{
	var scrOfX = 0, scrOfY = 0;
	if(typeof(window.pageYOffset ) == 'number') {
		//Netscape compliant
		scrOfY = window.pageYOffset;
		scrOfX = window.pageXOffset;
	} else if (document.body
		&& (document.body.scrollLeft
		|| document.body.scrollTop))
	{
		//DOM compliant
		scrOfY = document.body.scrollTop;
		scrOfX = document.body.scrollLeft;
	} else if (document.documentElement 
		&& (document.documentElement.scrollLeft 
		|| document.documentElement.scrollTop))
	{
		//IE6 standards compliant mode
		scrOfY = document.documentElement.scrollTop;
		scrOfX = document.documentElement.scrollLeft;
	}
	return [ scrOfX, scrOfY ];
}

// from http://adomas.org/javascript-mouse-wheel/
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);
        if (event.preventDefault)
                event.preventDefault();
        event.returnValue = false;
}

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