protected override void OnShown(EventArgs e)
{
DateTimeService.Start(label1);
controller = Controllers.Instance;
controller.WindowChange += controller_WindowChange;
controller.RegistrationPanel(new WelCome());
controller.RegistrationPanel(new ReadDocument());
controller.RegistrationPanel(new Responses());
controller.RegistrationPanel(new PrintCert());
controller.Start();
base.OnShown(e);
}