     years = _.map [@currentYear..1900], (year) ->
       option value: year, key: year, year
     return select
-      className: "input-date-year"
+      className: "input-date-year " + @props.className or ""
       value: @props.value.getFullYear()
       onChange: @onYearChange
     , years

    , month[1]

    return select
      className: "input-date-month"
      value: @props.value.getMonth()
      onChange: @onMonthChange
    , months

    days = [1..daysInMonth(@props.value.getMonth() + 1, fullYear)]
    dayOptions = _.map days, (day) -> option value: day, key: day, day
    return select
      className: "input-date-day " + @props.className or ""
      value: @props.value.getDate()
      onChange: @onDayChange
    , dayOptions
