tab_box(self->t,-1,-1,-1,TAL_1, 2,1,hsize-2,vsize-1);
tab_hline(self->t,TAL_1, hsize-2,hsize-1,2);
tab_box(self->t,-1,-1,-1,TAL_1, hsize-2,2,hsize-1,vsize-1);
tab_box(self->t,-1,-1,-1,TAL_1, 2,1,hsize-2,vsize-1);
tab_hline(self->t,TAL_1, hsize-2,hsize-1,2);
tab_box(self->t,-1,-1,-1,TAL_1, hsize-2,2,hsize-1,vsize-1);