function set_reg_user_invoice()
 {
     $do_api_reg_inv_log = new RegistrationInvoiceLog();
     $do_api_reg_inv_log->addNew();
     $do_api_reg_inv_log->iduser = $this->iduser;
     $do_api_reg_inv_log->idinvoice = $this->idinvoice;
     $do_api_reg_inv_log->reg_iduser = $this->reg_iduser;
     $do_api_reg_inv_log->add();
 }