[OpenLayers-Users] detection of layer loading success/fail

[stephane.poirier at usherbrooke.ca]

Hi All,

How can one detect if a given server pushes the map or not? Here below is the line I use to get a layer from NASA server and need to switch to alternate layer server when it is down.

var nasaLayer = new OpenLayers.Layer.WMS( "NASA WMS","http://wms.jpl.nasa.gov/wms.cgi?", {layers: 'BMNG',format:'image/png'},{isBaseLayer: true});

Thanks,

Stephane


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