public function setShippingMethods($methods)
 {
     $errors = Mage::getModel('adjdeliverydate/step')->multiprocess();
     if ($errors) {
         Mage::throwException($errors['message']);
     }
     $aAllShippingAddresses = $this->getQuote()->getAllShippingAddresses();
     Mage::getModel('adjdeliverydate/quote')->multiSaveDelivery($aAllShippingAddresses);
     return parent::setShippingMethods($methods);
 }