 
 		super options
 
+		if options.value is undefined then @value = (@max / 2)
 		@knobSize = options.knobSize or 30
 		@knob.superLayer = @fill.superLayer = @
 


		# On click/touch of the slider, update the value
		@on(Events.TouchStart, @_touchDown)

		# Set default value
		@value = @max / 2

	
	_touchDown: (event) =>

		@knob.borderRadius = "50%"

		@_updateFrame()
		@_updateKnob()
		@_updateFill()

		@on("change:size", @_updateFrame)
