relative_time_span (Merb::Helpers::DateAndTime)

    # File lib/merb-helpers/date_time_helpers.rb, line 106
          def relative_time_span(times)
            times = [times.first, times.last].collect! { |t| t.to_time }
            times.sort!
            if times.first == times.last
              "#{prettier_time(times.first)} #{relative_date(times.first)}"
            elsif times.first.to_date == times.last.to_date
                same_half = (times.first.hour/12 == times.last.hour/12)
                "#{prettier_time(times.first, !same_half)} - #{prettier_time(times.last)} #{relative_date(times.first)}"

            else
              first = times.first; last = times.last; now = DateAndTime.time_class.now
              arr = [prettier_time(first)]
              arr << ' '
              arr << first.strftime_ordinalized('%b %d')
              arr << ", #{first.year}" unless first.year == last.year
              arr << ' - '
              arr << prettier_time(last)
              arr << ' '
              arr << last.strftime('%b') << ' ' unless first.year == last.year && first.month == last.month
              arr << last.day.ordinalize
              arr << ", #{last.year}" unless first.year == last.year && last.year == now.year
              arr.to_s
            end
          end