def time_zone_options_for_select(selected = nil, priority_zones = nil, model = ::ActiveSupport::TimeZone)
zone_options = ""
zones = model.all
convert_zones = lambda { |list| list.map { |z| [ z.to_s, z.name ] } }
if priority_zones
if priority_zones.is_a?(Regexp)
priority_zones = model.all.find_all {|z| z =~ priority_zones}
end
zone_options += options_for_select(convert_zones[priority_zones], selected)
zone_options += "<option value=\"\" disabled=\"disabled\">-------------</option>\n"
zones = zones.reject { |z| priority_zones.include?( z ) }
end
zone_options += options_for_select(convert_zones[zones], selected)
zone_options
end