tab_headers (this->t, 0, 0, 1, 0);
tab_box (this->t, TAL_2, TAL_2, TAL_0, TAL_1, 0, 0, cols - 1, rows - 1);
tab_hline (this->t, TAL_2, 0, cols- 1, 1);
tab_headers (this->t, 0, 0, 1, 0);
tab_box (this->t, TAL_2, TAL_2, TAL_0, TAL_1, 0, 0, cols - 1, rows - 1);
tab_hline (this->t, TAL_2, 0, cols- 1, 1);