COFFEE-fied

gistfile1.coffee

App.Meta = Backbone.Model.extend(initialize: ->
  
  # Locate tags and find current values.
  @$titleTag = $("title")
  @$titleTag = $("<title></title>").appendTo($("head"))  unless @$titleTag.length
  @$descriptionTag = $("meta[name=\"description\"]")
  @$descriptionTag = $("<meta name=\"description\" content=\"\" />").appendTo("head")  unless @$descriptionTag.length
  @attributes.title = window.title or @$titleTag.text()
  @attributes.description = @$descriptionTag.attr("content")
  @attributes.rendered = false
  
  # Subscribe to events
  @on "change:title", (model, title) ->
    model.$titleTag.val title
    document.title = title

  @on "change:description", (model, description) ->
    model.$descriptionTag.attr "content", description

)