unit Unit6;

interface

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

type
  TForm6 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form6: TForm6;

implementation

uses Unit7, Unit8, Unit9;

{$R *.dfm}

procedure TForm6.Button1Click(Sender: TObject);
begin
form7.showmodal;
end;

procedure TForm6.Button2Click(Sender: TObject);
begin
form8.showmodal;
end;

procedure TForm6.Button3Click(Sender: TObject);
begin
form9.showmodal;
end;

procedure TForm6.Button4Click(Sender: TObject);
begin
close
end;

end.