I like the BaseMapGallery widget, even when I don't need the ArcGIS online maps and thumbnails, simply because it toggles the relevant layers for me and allows me to add "overlay" layers in a basemap easily.For example: http://jsfiddle.net/uYLu3/What I've run across and can't find any solutions for, is that I can't specify the BasemapLayer "id" or change a specific BasemapLayer's visibility. For example, I can't toggle the overlay layer off or on.I've hacked up a solution here: http://jsfiddle.net/qfH3W/1/relevant code:var layer = bmg.get("baseCanvas").getLayers()[0];
layer.visibility = !layer.visibility;
bmg.select("baseCanvas");In that I had to put in the known array index because I don't know the layer id at run-time. The other trick for this would be to search for a string in the layer URL maybe. I also had to re-select the Basemap to get it to update the change in visibility.
