cara membuat program loading sederhana dengan delphi7

nah disini saya mau bagi-bagi gemana caranya buat loading dengan delphi7..gini ne caranya ikutin ajah hehe...

1.buka delphi7
2.
unit Unit2;

interface

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

type
TForm2 = class(TForm)
ProgressBar1: TProgressBar;
Timer1: TTimer;
Label1: TLabel;
procedure Timer1Timer(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form2: TForm2;
status:integer;
implementation

uses Unit1, Unit3;

{$R *.dfm}

procedure TForm2.Timer1Timer(Sender: TObject);
begin
if form1.edit2.text='milaicha'then
begin
status:=status + 1;
progressbar1.Position:=status;
if status=100 then
begin
form2.Visible:=false;
form3.show;
end;

end;
end;
end.