public function getIdVille($idQuartier)
    {
        $idVille;
        if (!isset($idQuartier) && $idQuartier != '') {
            echo "Error while getting city id, no sub neighborhood informations were specified for this request.";
        } else {
            $req = "
    				SELECT idVille
    				FROM quartier
    				WHERE idQuartier = ".$idQuartier."
    				";
            $res = $this->connexionBdd->requete($req);
            $fetch = mysql_fetch_assoc($res);
            $idVille = $fetch['idVille'];
        }
        return $idVille;
    }