function addHandler(object, event, handler, useCapture) {
	if (object.addEventListener) {
		object.addEventListener(event, handler, useCapture ? useCapture : false);
	} else if (object.attachEvent) {
		object.attachEvent('on' + event, handler);
	} else alert("Add handler is not supported");
}

function exampleActivate() {
	/* Gecko */
	addHandler(window, 'DOMMouseScroll', wheel);
	/* Opera */
	addHandler(window, 'mousewheel', wheel);
	/* IE */
	addHandler(document, 'mousewheel', wheel);
	return false;
}

function wheel(event) {
	event = event || window.event;
	// forbid default scroll
//	alert(event.button)
	if (event.preventDefault)  event.preventDefault();
	event.returnValue = false;
}