code: protected void fireLayerMovedUpEvent(MapLayer layer, int newIndex) {
  		fireLayerHierarchyChangedEvent(new MapLayerHierarchyEvent(this, layer,
  				Type.MOVE_CHILD_UP, newIndex, layer.isTemporaryLayer()));
  	}
docs: Fire the event that indicates a layer was moved up.
  
  @param layer is the moved layer.
  @param newIndex is the new index of the layer.