/**
     *	Get one agenda with his id
     * 	@param : $id : agenda's id
     *	@return : Agenda object
     */
    public function getAgenda($id)
    {
        $agenda;
        $req = $this->_db->query('SELECT *
								FROM agenda WHERE idAgenda = \'' . $id . '\' ');
        while ($donnees = $req->fetch(PDO::FETCH_ASSOC)) {
            $agenda = new Agenda($donnees);
            $agenda->setId($donnees['idAgenda']);
            $agenda->setIsSuperposable($donnees['estSuperposable']);
            $agenda->setOwnerId($donnees['idUtilisateur']);
        }
        $nbTupleObt = $req->rowCount();
        $req->closeCursor();
        if ($nbTupleObt < 1) {
            return false;
        }
        return $agenda;
    }