         @el.find('.artifact-classifier').show()
       exit: ->
         @disableMarkingSurfaces()
-        @el.find('.artifact-classifier').hide() 
+        @el.find('.artifact-classifier').hide()
 
   constructor: ->
     super


      exit: ->
        @disableMarkingSurfaces()
        @el.find('.asteroid-classifier').hide() 
        @doneButton.hide()
        @finishButton.show()



  disableMarkingSurfaces: =>
    surface.disable() for surface in @markingSurfaceList

  enableMarkingSurfaces: =>
    surface.enable() for surface in @markingSurfaceList

