private void btnLoadAirline_Click(object sender, RoutedEventArgs e)
        {
            string directory = AppSettings.getCommonApplicationDataPath() + "\\custom airlines";

            Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();

            dlg.DefaultExt       = ".xml";
            dlg.Filter           = "Airline XMLs (.xml)|*.xml";
            dlg.InitialDirectory = System.IO.Path.GetFullPath(directory);
            dlg.Multiselect      = false;

            Nullable <bool> result = dlg.ShowDialog();

            if (result == true)
            {
                string path = dlg.FileName;

                Airline airline = Setup.LoadAirline(path);

                string imagePath = string.Format("{0}\\{1}.png", directory, airline.Profile.IATACode);

                if (File.Exists(imagePath))
                {
                    airline.Profile.addLogo(new AirlineLogo(imagePath));
                }
                else
                {
                    airline.Profile.addLogo(new AirlineLogo(AppSettings.getDataPath() + "\\graphics\\airlinelogos\\default.png"));
                }

                if (Airlines.GetAirline(airline.Profile.IATACode) != null)
                {
                    Airlines.RemoveAirlines(a => a.Profile.IATACode == airline.Profile.IATACode);
                }

                Airlines.AddAirline(airline);

                var airlines = Airlines.GetAirlines(a => (a.Profile.Country.Region == this.StartData.Region || (this.StartData.Region.Uid == "100" && this.StartData.Continent.Uid == "100") || (this.StartData.Region.Uid == "100" && this.StartData.Continent.hasRegion(a.Profile.Country.Region))) && a.Profile.Founded <= this.StartData.Year && a.Profile.Folded > this.StartData.Year).OrderBy(a => a.Profile.Name).ToList();

                cbAirline.ItemsSource = airlines;

                WPFMessageBox.Show(Translator.GetInstance().GetString("MessageBox", "2409"), Translator.GetInstance().GetString("MessageBox", "2409", "message"), WPFMessageBoxButtons.Ok);

                if (cbAirline.Items.Contains(airline))
                {
                    cbAirline.SelectedItem = airline;
                }
            }
        }