code: protected String getJavaScript4Target(final Map<String, String[]> _parameters)
      {
          final String ret;
          setExecutionStatus(UIStructurBrowser.ExecutionStatus.GETJAVASCRIPT4TARGET);
          try {
              final List<Return> retList = getObject4Event().executeEvents(EventType.UI_TABLE_EVALUATE,
                                  ParameterValues.INSTANCE, getInstance(),
                                  ParameterValues.CLASS, this,
                                  ParameterValues.PARAMETERS, _parameters);
              ret = (String) retList.get(0).get(ReturnValues.SNIPLETT);
          } catch (final EFapsException e) {
              throw new RestartResponseException(new ErrorPage(e));
          }
          return ret;
      }
docs: Method is called from the StructurBrowser in edit mode from
  {@link #setValuesFromUI(Map, DefaultMutableTreeNode)} to get
  additional JavaScript to be appended to the AjaxTarget.
  @param _parameters   Parameter as send from the UserInterface
  @return JavaScript for the UserInterface