N1:=-2;

N2:=9;

N3:=30;

VA:=IF(CLOSE>REF(CLOSE,1),VOL/1000,-VOL/1000);

OBV:SUM(IF(CLOSE=REF(CLOSE,1),0,VA),0)/10000,COLORYELLOW,LINETHICK2;

MAOBV1:MA(OBV,N1);

MAOBV2:MA(OBV,N2);

MAOBV3:MA(OBV,N3);