anchor.diff:  
   
       CREATE OBJECT ro_html.
  -    CREATE OBJECT go_user.
   
       ro_html->add( header( io_include_style = styles( ) ) ).
       ro_html->add( title( iv_page_title = 'HOME' io_menu = build_main_menu( ) ) ).
  
positive.code:       RETURNING VALUE(ro_instance) TYPE REF TO lcl_gui
        RAISING   lcx_exception.
  
      METHODS go_home
        RAISING lcx_exception.
  
  
negative.code: 
      lv_key = io_repo->get_key( ).
  
      IF lcl_gui=>get_user( )->is_hidden( lv_key ) = abap_true.
        lo_toolbar->add( iv_txt = 'Show'
                         iv_cmd = |sapevent:unhide?{ lv_key }| ).
      ELSE.
  