public function showAction()
 {
     $id = $this->getRequest()->getParam('id');
     if (!$id) {
         throw new Api_Model_Exception("", Api_Model_Exception::E_PARAM_REQUIRED);
     }
     $ids = explode(',', $id);
     $mCompany = new Application_Model_Company();
     $rs = $mCompany->getByIds($ids);
     echo json_encode($rs);
 }