/**
* Loads configuration.
*/
public void load()
{
_config = new Configuration(CONFIG_FILE_NAME);
// Creates config entries if needed.
if (_config.get(AUDIO_DEVICE) == null) _config.add(AUDIO_DEVICE, _audioDevice);
if (_config.get(VISUAL_MODE) == null) _config.add(VISUAL_MODE, _visualMode);
if (_config.get(LAST_URL) == null) _config.add(LAST_URL, _lastUrl);
if (_config.get(LAST_EQUALIZER) == null) _config.add(LAST_EQUALIZER, _lastEqualizer);