DATA:
fs_itab TYPE stu,                 " INTERNAL TABLE
t_itab LIKE TABLE OF fs_itab.     " WORK AREA

DATA:
r_grid TYPE REF TO cl_gui_alv_grid,
r_container TYPE REF TO cl_gui_custom_container.

DATA:
t_fcat TYPE lvc_t_fcat,
wa_fcat TYPE lvc_s_fcat.