Object.extend(Event, {
	isRightClick: function(event)
	{
		return ((event.type && event.type == "contextmenu") ||
			(event.button && event.button == 2) ||
			(event.which && event.which == 3));
	},
	isAlphabet: function(event)
	{
		return ((event.keyCode >= 48 && event.keyCode <= 57 ) ||
			(event.keyCode >= 65 && event.keyCode <= 90 ))
	},
	elementFrom: function(event)
	{
		return $(event.relatedTarget || event.fromElement);
	},
	elementTo: function(event)
	{
		return $(event.relatedTarget || event.toElement);
	},
	findClassName: function(event, className)
	{
		var element = Event.element(event);
		while (element.parentNode && (!element.className ||
			(!Element.hasClassName(element, className))))
			element = element.parentNode;
		return element;
	}
} );