[O] make code lines bold in export

[thomas]

Hi,

it would be very nice if i was able to highlight (i.e. make bold) 
certain lines in an exported code, say ODT.

Something like this:

#+BEGIN_SRC java
public class HelloActivity extends Activity {
  /** Called when the activity is first created */
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);  // *MAKE THIS LINE BOLD*
  }
}
#+END_SRC

Is there an - easy - way to do this? My first guess: I need to write an 
export filter ...  what would you think?

Thanks,
thomas