code: public int fieldChanged(boolean bDisplayOption, int iMoveMode)
      {
          if (m_bSetModified)
              m_fldTarget.setModified(true);
          return m_fldTarget.handleFieldChanged(bDisplayOption, iMoveMode); // init dependent field
      }
docs: The Field has Changed.
  Initialize the target field also.
  @param bDisplayOption If true, display the change.
  @param iMoveMode The type of move being done (init/read/screen).
  @return The error code (or NORMAL_RETURN if okay).
  Field Changed, init the field.