fc.setDialogTitle(language.getString("MessageFrame.fileChooser.title"));
fc.setFileHidingEnabled(false);
fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
fc.setMultiSelectionEnabled(true);
final int returnVal = fc.showOpenDialog(MessageFrame.this);
if( returnVal == JFileChooser.APPROVE_OPTION ) {
final File[] selectedFiles = fc.getSelectedFiles();
for( final File element : selectedFiles ) {
// for convinience remember last used directory
frostSettings.setValue(SettingsClass.DIR_LAST_USED, element.getPath());