public function searchAction()
 {
     $form = new CustomerForm();
     $form->get('submit')->setValue('Search');
     $customer = new Customer();
     $customers = null;
     $request = $this->getRequest();
     if ($request->isPost()) {
         $customer = new Customer();
         $form->setInputFilter($customer->getInputFilter());
         $form->setData($request->getPost());
         if ($form->isValid()) {
             $customer->exchangeArray($form->getData());
             $customers = $this->getCustomerTable()->searchCustomer($customer);
         } else {
             $messages = $form->getMessages();
         }
     }
     return array('form' => $form, 'customer' => $customer, 'customers' => $customers);
 }