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javascript - How to get Google Maps API to set the correct zoom level for a country?

Is there a was of automatically setting the zoom level based on the size of the country that the map has been centered on?

maps.google.com does exactly what I need, so, for example, if I search for Russia I get a zoom level such that Russia just fits on screen, and when I search for Cuba I get a higher zoom level so that Cuba just fits.

Is there some way of giving the Maps Api a country location and getting an appropriate zoom level.

If not, I guess that I would have to manually (ugh!) create my own table for this information. Or is this information freely available somewhere?

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For V3 this code worked for me:

var geocoder = new google.maps.Geocoder();
   geocoder.geocode( { 'address': address}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        map.setCenter(results[0].geometry.location);
        map.fitBounds(results[0].geometry.viewport);
      }
    });

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