Listen for the "load" event on the directions request, then use
.getPolyline() on it.

var gdir = new GDirections(map);

GEvent.addListener(gdir,"load",function() {
  var poly = gdir.getPolyline();
  ...
});

gdir.load(...);


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


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