Google Maps v3: Cannot access global variables

Question

Not sure what framework (if any) Google Maps v3 is built on top of but I'm having issues trying to access global variables within the following function.

var geocoder = new google.maps.Geocoder();
geocoder.geocode({
   'address': google_addresses_array[i][1]
}, function(results, status) {
   if (status == google.maps.GeocoderStatus.OK) {
      alert(i);  // I cannot reference i from here
   }
});

I tested the status and it's returning the correct latitude and longitude etc.