code: public void toXML(final StringBuilder builder,
  			final ConfigVerification errors)
  	{
  
  		map.get(PanelKeys.PANEL_VALUES).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_EXTERNALS).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_INPUT).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_OUTPUT).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_SQL).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_CACHE).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_LOGGING).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_DEBUG).toXML(builder, errors);
  		map.get(PanelKeys.PANEL_FILTER).toXML(builder, errors);
  	}
docs: Adds the xml description of the panels content to the StringBuilder.
  Errors which occur during the xml transformation will be added to the
  ConfigVerification.
  
  @param builder
  Reference to a StringBuilder object
  @param errors
  Reference to the ConfigVerification object