       name          : 'snapshots'
       selectOptions : [ title: 'None', value: "" ]
       callback      : (snapshotId) =>
-        sliderValue = @storageSlider.handles.first.value
 
         # If the selected snapshot has a value (not empty), disable the
         # region selector, and set it's value to the snapshot region.

    @updateStorageUsageText 5, usage, limits
    @updateSnapshotUsageText 5
    @updateCreateVMBtnEnabled 5
    @storageSlider.on "ValueIsChanging", (val)=>
      @updateStorageUsageText val, usage, limits
      @updateSnapshotUsageText val
      @updateCreateVMBtnEnabled val

          @regionSelector.makeDisabled()
        else
          @regionSelector.makeEnabled()
          @createVMButton.enable()

        # Update the usage text with the value of the slider
        #
        # Note that @getValues() just returns the value *option* of the
        # handles, so we're getting the value directly.
        @updateSnapshotUsageText @storageSlider.handles.first.value

    content.addSubView storageContainer = new KDView
      cssClass : "storage-container"
