Javascript - Google Maps v3 - Get positions of markers

Thanks to this site and your help, I have almost finished my Googlemaps script. There is one more thing, I need your help with:

I have multiple markers on my map.

I would like to:

-save each marker position in a variable

-make external links below the map which link to the markers

-change mapcenter on click of these links (described above)

Here is my script so far:

   <script type="text/javascript">
    var offender_locations = [
        ["10001", "Title 2", "icon.png"],
        ["10002", "Title 3", "icon.png"],
        ["10010", "home", "icon.png"]
    ];

    var myOptions 开发者_高级运维= {
        zoom: 12,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("results_map"), myOptions);
    var latlng = new google.maps.LatLng(0, 0);

    for (i = 0; i < offender_locations.length; i++) {
        var infowindow = new google.maps.InfoWindow(),
            geocoder_map = new google.maps.Geocoder(),
            address = offender_locations[i][0],
            icon_img = offender_locations[i][2];
        (function(addr, img, i) {
            geocoder_map.geocode({
                'address': addr
            }, function(results, status) {
                if (status == google.maps.GeocoderStatus.OK) {
                    map.setCenter(results[0].geometry.location);
                    var marker = new google.maps.Marker({
                        map: map,
                        position: map.getCenter(),
                        icon: img
                    });
                    google.maps.event.addListener(marker, 'click', (function(marker, i) {
                        return function() {
                            infowindow.setContent(offender_locations[i][1]);
                            infowindow.open(map, marker);
                        }
                    })(marker, i));

                } else {
                    alert("error!");
                }
            });
        }(address, icon_img, i));
    }

    function zoomin() {
        map.setZoom(15);
    };

    function zoomout() {
        map.setZoom(15);
    }
</script>

The last two small functions are for the click even of the external links. at this moment they only change the zoom level and do not change the map center.

---

Try pushing your markers to an array so you can look at them later.

At the beginning do var markers = [];

Then after each marker declaration markers.push(marker);.

---

You can also use object to store your markers or other layers in case you want to access them later by primary key:

var markers = {};

markers['car_1'] = marker;

//change the position of 'car_1'
markers['car_1'].setPosition(x,y);

//you also can create much more complex structure like this
marker['car_2'] = {'title': 'Car 1', _ref: marker};

//change the position of 'car_2'
markers['car_2']._ref.setPosition(x,y);

Attention: make sure your object keys(in our case: car_1, car_2) are not the same(primary key).