function handle(delta) {	if (delta < 0)	{		scrollBy(60,0);	}	else	{		scrollBy(-60,0)	}}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;}if (window.addEventListener){	window.addEventListener('DOMMouseScroll', wheel, false);}window.onmousewheel = document.onmousewheel = wheel;