     @accordion angle / 10, anchor, options
 
 
-  curl: (angle, anchor, options = {}) ->
+  curl: (angle, anchor, options) ->
     normalized = @_normalizeArgs 'curl', arguments
-    return if not normalized
+    return unless normalized
     [angle, anchor, options] = normalized
     angle /=  @_getPanelType anchor
 


  ramp: (angle, anchor, options) ->
    normalized = @_normalizeArgs 'ramp', arguments
    return if not normalized
    [angle, anchor, options] = normalized
    @panels[anchor][1].style[css.transform] = @_transform angle


      callback = anchor

    normalized = @_normalizeArgs 'foldUp', [0, anchor, {}]
    return unless normalized
    anchor = normalized[1]
    @isFoldedUp = true
    limit = @panels[anchor].length - 1
