[Google Maps API v3] zoom_changed listener problem

[nichobot]

Hi,

I am new to Google maps and javascript, and am hitting a wall while
following the documentation on events and listeners for V3.

I followed the instructions for adding a listener to recenter the map
on the city of Darwin when zoom_changed is fired by the API, as
indicated here:

http://code.google.com/apis/maps/documentation/javascript/events.html#EventListeners

My code seems fine:


                        var centerLatitude = 37.818361
                        var centerLongitude = -122.198032
                        var startZoom = 3

                        function initialize() {
                          var latlng = new google.maps.LatLng(centerLatitude,
centerLongitude);
                          var myOptions = {
                            zoom: startZoom,
                            center: latlng,
                            mapTypeId: google.maps.MapTypeId.ROADMAP
                          };
                          var map = new
google.maps.Map(document.getElementById("map_canvas"), myOptions);

                          google.maps.event.addListener(map, 'zoom_changed', 
function() {
                            setTimeout(moveToDarwin, 3000);
                          });

                          var marker = new google.maps.Marker({
                              position: latlng,
                              map: map,
                              title:"Hello World!"
                          });
                          google.maps.event.addListener(marker, 'click', 
function() {
                            map.setZoom(12);
                          });

                        }

                        function moveToDarwin() {
                          var darwin = new google.maps.LatLng(-12.461334, 
130.841904);
                          map.setCenter(darwin);
                        }


The map loads fine, the marker created in the code is present and
responds to the 'click' event by zooming, as expected.

But when I zoom (either manually or via clicking the marker), I don't
get the expected behavior of the map automatically recentering to the
specified coordinates. Is it possible that 'zoom_changed' isn't being
fired? How can I debug this? Is it possible to check this with
Firebug?

Any help is appreciated. Like I said, I'm very new to this and I
realize this might seem like a dumb question, but I have been trying
to figure this out for the last day and I am at a dead end.

Thanks in advance.

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