public function getUsers() {
	
		$this->db->setQuery('SELECT * FROM `users` WHERE group_id=?');
		$list = $this->db->loadObjectList($this->id);
	
		$users = array();
	
		$userClass = PAIR_USER_CLASS;
	
		// iterate on each page
		foreach ($list as $row) {
			$users[] = new $userClass($row);
		}
	
		return $users;
	
	}