class SaveItemListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
File trackFile = null;
JFileChooser chooser = new JFileChooser(getChooserRoot());
chooser.addChoosableFileFilter(new MixFileFilter());
chooser.addChoosableFileFilter(new HTMLFileFilter());
int rc = chooser.showSaveDialog(SimpleMixer.this);
if (rc == JFileChooser.APPROVE_OPTION) {
trackFile = chooser.getSelectedFile();