[OpenLayers-Users] Using overview map, no layers showing up

[Planet)x]

Hi, thanks for the advice.. however I tried this -
           

 //set options for overview map
            var options = {                     
                    resolutions:
[1.40625,0.703125,0.3515625,0.17578125,0.087890625,0.0439453125],
                    minScale: 100,
                    maxExtent: new OpenLayers.Bounds(-20037508.34,
-20037508.34, 20037508.34, 20037508.34),
                    maxResolution: 156543.0399,
                    maxScale: 10000000,
                    minResolution: 0.0439453125,
                    units: 'm'
                  };

           
            var redgisOverview = new
OpenLayers.Control.OverviewMap(options);




Unfortunately I still get a blue empty overview map without anything on it,
any suggestions?
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