Google Maps API bounds: works in FF not in Safari?

I'm using this code to set the bounds of a google map based on a list of locations:

Strange thing is that this is working fine in Firefox: the map pans and scales to fit the given locations. In Safari the map instead loads on the middle of the Pacific Ocean.

Can you help me?

Thanks, Augusto

LatLngList = []
var bounds = new google.maps.LatLngBounds();

function add_point_to_list(point) {
    var lat = point.split(" ")[0]
    var lng = point.split(" ")[1]
    var Gpoint = new google.maps.LatLng(lat,lng)
    LatLngList.push(Gpoint)
    bounds.extend(Gpoint);
}   

$.getJSON('/locations/user_map?id=' + <%= @user.id %>, function(data){
    if (data.posts) {
        for (var i in data.posts) { 
            var cord = (data.posts[i].lat + " " + data.posts[i].开发者_开发技巧lng)
            add_point_to_list(cord)
        }
    }
})

function map_init() {
    var myOptions = {
        zoom: 6,
        mapTypeControl: false,
        panControl: false,
        zoomControl: false,
        mapTypeControl: false,
        scaleControl: false,
        streetViewControl: false,
        mapTypeId: google.maps.MapTypeId.TERRAIN
    }
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    //set map center
    // map.setCenter(latlng);
    map.fitBounds (bounds);
    //updateMapOverlays();
    //google.maps.event.addListener(map, 'idle', updateMapOverlays);
    markerCluster = new MarkerClusterer(map, [], {gridSize: 70, maxZoom: 14, zIndex: 1});
    geocoder = new google.maps.Geocoder();

    refresh_overlays('/locations/user_map?id=' + <%= @user.id %>);

    marker = new google.maps.Marker({
    map: map,
    icon: userMarkerImage,
    position: latlng,
    zIndex: 100
    });

}

Solved. The map init was calling the bounds variable when it was still not ready.

So I put map.fitBounds (bounds); at the end of the AJAX callback:

$.getJSON('/locations/user_map?id=' + <%= @user.id %>, function(data){
    if (data.posts) {
        for (var i in data.posts) { 
            var cord = (data.posts[i].lat + " " + data.posts[i].lng)
            add_point_to_list(cord)
        }
        map.fitBounds (bounds);
    }
})