Changes
hide if no data, per discussion
elementscats = '[[Category:AC with ' .. rct .. ' elements]]'
end
if table.maxn(elements) ~= 0 then return Navbox._navbox( { name = 'Authority control', bodyclass = 'hlist', group1 = '[[Authority control]]' .. elementscats, list1 = table.concat( elements ) } ) else return "" end
end
return p