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

Question

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,

Answer 1

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);
      }
    });