I need to have a custom layerswitcher [radio buttons, etc], and am having a hard time finding examples on modifying layer visibility or creating layers on the fly. So I have 2 questions.
How do I determine the number of current layers?
Given a layer I just created by clicking a checkbox (or one that already existed)...how do I grab the layer to modify visibility?
OpenLayers.Layer.[layername].setVisibility(true); doesn't work since it says the layer doesn't exist.
Thanks,
Levii
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