     L.DomEvent.disableClickPropagation @_nextButton
     @_prevButton.addEventListener 'click', @_prev.bind @
     @_nextButton.addEventListener 'click', @_next.bind @
-
-  _makeRevff: (container) ->
-    @_revButton = L.DomUtil.create 'button', 'rev'
-    @_ffButton = L.DomUtil.create 'button', 'ff'
-    @_revButton.innerHTML = '<'
-    @_ffButton.innerHTML = '>'
-    @_playButton.parentNode.insertBefore @_revButton, @_prevButton
-    @_playButton.parentNode.insertBefore @_ffButton, @_nextButton.nextSibling
-    L.DomEvent.disableClickPropagation @_revButton
-    L.DomEvent.disableClickPropagation @_ffButton
-    @_revButton.addEventListener 'mousedown', @_rev.bind @
-    @_ffButton.addEventListener 'mousedown', @_ff.bind @
 
   _makeSlider: (container) ->
     @_timeSlider = L.DomUtil.create 'input', 'time-slider', container

      lastTime = time
    lastTime

  _rev: ->
    @_pause()
    @_timeSlider.value = +@_timeSlider.value - @smallStepSize
    @_sliderChanged
      type: 'change'
      target: value: @_timeSlider.value

  _ff: ->
    @_pause()
    @_timeSlider.value = +@_timeSlider.value + @smallStepSize
    @_sliderChanged
      type: 'change'
      target: value: @_timeSlider.value

  _prev: ->
    @_pause()
    prevTime = @_nearestEventTime @timeline.time, -1

      @_makePlayPause buttonContainer
      @_makePrevNext buttonContainer
    @_makeSlider container
    @_makeOutput sliderCtrlC
    if @showTicks
      @_buildDataList container, @timeline.times
