FF:=H=REFX(H,1) AND L<REFX(L,1);
F:=BARSLAST(FF);
DRAWLINE(F=0,H,F=1,REF(H,1),0),COLORYELLOW;
DRAWLINE(F=0,L,F=1,REF(L,1),0),COLORYELLOW;
GG:=H>REFX(H,1) AND L=REFX(L,1);
G:=BARSLAST(GG);
DRAWLINE(G=0,H,G=1,REF(H,1),0),COLORYELLOW;
DRAWLINE(G=0,L,G=1,REF(L,1),0),COLORYELLOW;
II:=H>REFX(H,1) AND L<REFX(L,1);
I:=BARSLAST(II);
DRAWLINE(I=0,H,I=1,REF(H,1),0),COLORYELLOW;
DRAWLINE(I=0,L,I=1,REF(L,1),0),COLORYELLOW;
