Il 28/12/2011 19:11, Paolo Cavallini ha scritto: > (frane at 1>30)=1 + (frane at 1 <=30)=2 ok, replacing =1 with *1 gives desired results; a strange syntax to me, though. All the best. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc