Wasn't it puff who wrote:
>
>Is it possible to have a single marker/line/shape instance on multiple
>maps, eg.
>
>    marker = new GMarker( ... );
>    map1.addOverlay( marker );
>    map2.addOverlay( marker );

No. Performing map2.addOverlay(marker) overwrites some if the 
inaccessible marker parameters that the API needs to keep track of the 
relationship between the marker and map1.

What you can do is place a copy() of the marker on the second map. 
That's how Google do it with the minimap in a .showMapBlowup() window.

     marker = new GMarker( ... );
     map1.addOverlay( marker );
     map2.addOverlay( marker.copy() );

.copy() is a documented GOverlay method, but it doesn't work will all 
types of overlay.

-- 
http://econym.org.uk/gmap
The Blackpool Community Church Javascript Team


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