Jquery plagin template

example.coffee

$('selector').smartDataInputs()
(($) ->
  # e.keyCode e.shiftKey e.ctrlKey e.altKey e.metaKey
  # keydown => keypress => keyup

  $.fn.smartDataInputs = (options) ->
    block  = @
    inputs = block.children('input')
    params = $.extend {}, options

    day   = $ inputs[0]
    month = $ inputs[1]
    year  = $ inputs[2]

    $(block).on 'keydown', day, (e) ->
      log 'keydown'

    $(block).on 'keyup', day, (e) ->
      log 'keyup'

    $(block).on 'keypress', day, (e) ->
      log 'keypress'

    @
)(jQuery)