code: private void stopSliding(boolean unhighlight, boolean fireEvent) {
  		if (unhighlight) {
  			DOM.setElementProperty(lineElement, "className", SLIDER_LINE);
  
  			DOM.setElementProperty(knobImage.getElement(), "className", SLIDER_KNOB);
  		}
  	}
docs: Stop sliding the knob.
  
  @param unhighlight
  true to change the style
  @param fireEvent
  true to fire the event