Alpha sorting on both options and groups for option_groups_from_collection_for_select

[tyler2]

# How would you best perform a secondary sort on :buildings below? = 'Building Name' = select_tag 'building_id', |   option_groups_from_collection_for_select(Site.all(:order => :full_name), |   :buildings, :full_name, :id, :full_name, nil) |