// called when the load script button is pressed.
 private void scriptPressed() {
   int returnVal = fileChooser.showDialog(this, "Load Script");
   if (returnVal == JFileChooser.APPROVE_OPTION) {
     notifyControllerListeners(
         ControllerEvent.SCRIPT_CHANGE, fileChooser.getSelectedFile().getAbsoluteFile());
     scriptComponent.setContents(fileChooser.getSelectedFile().getAbsolutePath());
   }
 }