Hi list, is it necessary to always have a BaseLayer in the OpenLayers model? I haven't got anything to work without saying one of the layers is the baselayer. Why can't I have 5 WMS layers, and give the user the possiblity to turn them all on or off? Best regards, Bart -- Bart van den Eijnden OSGIS, Open Source GIS bartvde at osgis.nl http://www.osgis.nl