I'd like to create multiple layers for asset management using openlayers, could anybody help?
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Openlayers site has many useful examples which allow you to start work. Start with that and ask question specifically what is the issue. Here examples: http://openlayers.org/dev/examples/ Few useful ones: http://openlayers.org/dev/examples/all-overlays-google.html http://openlayers.org/dev/examples/select-feature-multilayer.html