initialize scripts pragmatically

index.haml

%div{ data: { init: 'somescript' } }

init.coffee

initialize =
  inited: []
  loaded: []

  objects: ->
    $('[data-init]').not('[data-load]').each (index, element) =>
      if $.inArray($(element).data('init'), initialize.inited) == -1
        initialize.inited.push($(element).data('init'))
        window[$(element).data('init')].init()

  load_objects: ->
    $('[data-load]').each (index, element) =>
      if $.inArray($(element).data('load'), initialize.loaded) == -1
        initialize.inited.push($(element).data('load'))
        window[$(element).data('load')].init()

jQuery ->
  initialize.objects()

$(window).load ->
  initialize.load_objects()

somescript.coffee

window.somescript =
  init: ->
    alert 'this is called when the data-init attribute is loaded on a certain page'