fc.setCurrentDirectory(f);
}
catch (IOException ioe) { }
//set filter to only known extension
BeanShellFileFilter filter = new BeanShellFileFilter();
filter.addExtension("bsh");
fc.setFileFilter(filter);
fc.setMultiSelectionEnabled(false);
int returnVal = fc.showOpenDialog(MainWindow.getInstance().getActiveFrame());
if (returnVal == JFileChooser.CANCEL_OPTION )