function pol_modifyPolicy($policy, $timeZoneId)
{
    try {
        $client = new SoapClient(WSDL_QS, array('location' => LOCATION_QS));
        $request = array("policy" => $policy, "timeZoneId" => $timeZoneId);
        $client->modifyPolicy($request);
        return array("success" => true);
    } catch (Exception $e) {
        return array("success" => false, "message" => $e->getMessage());
    } catch (SoapFault $soapfault) {
        return array("success" => false, "message" => $soapfault->getMessage());
    }
}