private void buttonAbout_Click(object sender, RoutedEventArgs e)
{
About dialog = new About();
dialog.AboutData = _aboutData;
dialog.SetCreditsInformation(CultureHelper.GetString(Properties.CreditsResource.ResourceManager, "CREDITS"));
DialogPanel.ShowDialog(Properties.Resources.ResourceManager, "ABOUT", dialog, "buttonOK", DialogButtons.Close, null);
}