public function pressButton($name)
 {
     $form_state = $this->getFormState();
     $order = $form_state['order'];
     $response = parent::pressButton($name, array(), $form_state['order']);
     return $this->getResponse($response);
 }
 public function pressPaymentOption($name)
 {
     $checkout_pages = commerce_checkout_pages();
     $checkout_page = $checkout_pages[$this->page_id];
     $order = commerce_order_load($this->order_id);
     $response = parent::pressButton($name, array('ajax' => true), $order, $checkout_page);
     return $this->getResponse($response);
 }