public function DiscussionModel($Value = FALSE) {
		if($Value !== FALSE) {
			$this->_DiscussionModel = $Value;
		}
		if($this->_DiscussionModel === FALSE) {
			require_once(dirname(__FILE__).DS.'class.discussionmodel.php');
			$this->_DiscussionModel = new DiscussionModel();
		}
		return $this->_DiscussionModel;
	}