LOOP
  EXIT WHEN get_item_property(:system.cursor_item, nextitem) IS NULL;
  NEXT_ITEM;
  IF get_item_property(:system.cursor_item, item_tab_page) = 'TAB YOURE LOOKING FOR';
    l_first_item_in_tab := :system.cursor_item;
    EXIT;
  END IF;
END LOOP;