public function getArrayListeProfils()
    {
        $retour=array();
        $req = "SELECT idProfil,libelle FROM droitsProfils";
        $res = $this->connexionBdd->requete($req);
        while ($fetch = mysql_fetch_assoc($res)) {
            $retour[$fetch['idProfil']]=$fetch['libelle'];
        }
        return $retour;
    }