private void RemoveConfigWidget()
            {
                book.ShowTabs = true;

                book.RemovePage (book.CurrentPage);
                book.CurrentPage = 0;
                configwidget = null;
            }
            private void ShowConfigWidget()
            {
                if (configwidget != null)
                    return;

                configwidget = new ICSConfigWidget (client);
                int pageidx = book.NPages;
                book.ShowTabs = false;
                book.AppendPage (configwidget,
                         new Label (Catalog.
                                GetString
                                ("Login")));
                book.CurrentPage = pageidx;
                configwidget.ShowAll ();
            }