@Override
	protected GridLayer createGridLayer() {
		return new GridLayer(){

			@Override
			protected void paintGrid(final Graphics g) {
				int origLineStyle = g.getLineStyle();
				g.setLineStyle(Graphics.LINE_CUSTOM);
				g.setLineDash(GRID_DASHES_STYLE); 
				super.paintGrid(g);
				g.setLineStyle(origLineStyle);
			}
			
		};
	}