knowledge/library/viewtpl/DisplayNone.php

<?php
include_once SERVER_ROOT . '/library/viewtpl/iDisplay.php';

class DisplayNone implements iDisplay  {
	private $view;

	public function __construct() {
	}

	public function setView($view) {
		$this->view = $view;
	}

	public function execute() {
		if(!empty($this->view['message'])) echo $this->view['message'];
	}
}