var events = function () {
	return {
		on : function (target, type, callback, capture) {
			if(target.addEventListener) {
				target.addEventListener(type, callback, capture);
				return true;
			}
			else if(target.attachEvent) {
				var r = target.attachEvent('on' + type, callback);
				return r;
			}
			else {
				target['on' + type] = callback;
			}
		}
	}
} ();