code: public int commandToDocType(String strCommand)
      {
          if (ProjectTask.PROJECT_PREDECESSOR_DETAIL_SCREEN.equalsIgnoreCase(strCommand))
              return ProjectTask.PROJECT_PREDECESSOR_DETAIL_MODE;
          if (ProjectTask.PROJECT_TASK_CALENDAR_SCREEN.equalsIgnoreCase(strCommand))
              return ProjectTask.PROJECT_TASK_CALENDAR_MODE;
          return super.commandToDocType(strCommand);
      }
docs: Convert the command to the screen document type.
  @param strCommand The command text.
  @param The standard document type (MAINT/DISPLAY/SELECT/MENU/etc).