Читать значения переменных из JavaScript?

// Just add a Webbrowser and two Buttons to the form and insert the following code

procedure TForm1.Button1Click(Sender: TObject);
begin
  webbrowser1.Navigate('http://www.dasbinich.info/myred/delphi/index.html');
end;

procedure TForm1.WebBrowser1DocumentComplete(Sender: TObject;
  const pDisp: IDispatch; var URL: OleVariant);
begin
  if (url = 'http://www.dasbinich.info/myred/delphi/index.html') then
    ShowMessage('Value lautet: ' + webBrowser1.OleObject.Document.Forms.item
    ('test').Elements.item('testen').Value);
  //read the Javascript value testen of the form test
end;

//this is an example how to use it when there are no names
procedure TForm1.Button2Click(Sender: TObject);
begin
  ShowMessage('Value lautet: ' + webBrowser1.OleObject.Document.Forms.item
  (0).Elements.item(0).Value);
end;


//to read the javascript value from a site with a frame use the following
webBrowser1.OleObject.Document.Frames.item('top').Document.Forms.item
('Countdown').Elements.item('Countdown').Value;
//top is the framename in this example