ar event = jsonObj['event'];
				var action = jsonObj['action'];
				var context = jsonObj['context'];
				var jsonPayload = jsonObj['payload'] || {};

				if (event == "keyDown") {
					var settings = jsonPayload['settings'];
					var coordinates = jsonPayload['coordinates'];
					var userDesiredState = jsonPayload['userDesiredState'];
					numberdisplayAction.onKeyDown(context, settings, coordinates, userDesiredState);
				}
				else if (event == "keyUp") {
					var settings = jsonPayload['settings'];
			