public function assignData($data)
 {
     if (!Mage::helper('buckaroo3extended')->isAdmin()) {
         $session = Mage::getSingleton('checkout/session');
     } else {
         $session = Mage::getSingleton('core/session');
     }
     $session->setData('additionalFields', array('gender' => $_POST['buckaroo3extended_onlinegiro_BPE_Customergender'], 'firstname' => $_POST['buckaroo3extended_onlinegiro_BPE_Customerfirstname'], 'lastname' => $_POST['buckaroo3extended_onlinegiro_BPE_Customerlastname'], 'mail' => $_POST['buckaroo3extended_onlinegiro_BPE_Customermail']));
     return parent::assignData($data);
 }