unit Unit19;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, jpeg, ExtCtrls;

type
  TForm19 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Image1: TImage;
    procedure Button3Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form19: TForm19;

implementation

uses Unit20, Unit21;

{$R *.dfm}

procedure TForm19.Button3Click(Sender: TObject);
begin
form19.Close;
end;

procedure TForm19.Button1Click(Sender: TObject);
begin
form20.show;
end;

procedure TForm19.Button2Click(Sender: TObject);
begin
form21.show;
end;

end.