/**
	 * Constructor
	 * @public
	 * @param  $poll  object
	 *   an instance of question's parent controller
	 * @param  $view  object
	 *   an instance of question view "linked" to this question
	 * @param  $questionId  integer
	 *   identifier of the question used to generate input names
	 */
	function __construct( qp_AbstractPoll $poll, qp_AbstractView $view, $questionId ) {
		# the question collection is not sparce by default
		$this->mQuestionId = $this->usedId = $questionId;
		$view->setController( $this );
		$this->view = $view;
		$this->poll = $poll;
	}
	/**
	 * @param $parser
	 * @param $frame
	 */
	function __construct( Parser $parser, PPFrame $frame ) {
		parent::__construct( $parser, $frame );
	}