/**
 * Handles an onRelease event.
 * @param source The MovieClip that triggered the onRelease event.
 */
public function onButtonReleaseHandler(source:MovieClip):Void
{
	switch(source) {
		case playBtn:
			App.getInstance().playGame();
			break;
		case quitBtn:
			fscommand ("quit");
			break;
	}
}