show fields that apply to unstaffed hut only if hut is defined as opened when unstaffed (ie field is not null and capacity > 0)
show fields that apply to unstaffed hut only if hut is defined as opened when unstaffed (ie field is not null and capacity > 0)

Bubu style commit, let's hope it works :o)
c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org,c2corg/camptocamp.org