class ActionView::Helpers::DateTimeSelector

def select_year
  if !year || @datetime == 0
    val = "1"
    middle_year = Date.today.year
  else
    val = middle_year = year
  end
  if @options[:use_hidden] || @options[:discard_year]
    build_hidden(:year, val)
  else
    options                     = {}
    options[:start]             = @options[:start_year] || middle_year - 5
    options[:end]               = @options[:end_year] || middle_year + 5
    options[:step]              = options[:start] < options[:end] ? 1 : -1
    options[:leading_zeros]     = false
    options[:max_years_allowed] = @options[:max_years_allowed] || 1000
    if (options[:end] - options[:start]).abs > options[:max_years_allowed]
      raise ArgumentError, "There are too many years options to be built. Are you sure you haven't mistyped something? You can provide the :max_years_allowed parameter."
    end
    build_select(:year, build_year_options(val, options))
  end
end