Viewer.Views.PhotosMap = Backbone.View.extend({
el: $('#conteneurLoad'),
markersOld: {},
mapOptions: function() {
    return {

        center: new google.maps.LatLng(35.3152208011549, -70.40635300000008),

    };
},...

Viewer.Views.PhotosMap = Backbone.View.extend({
el: $('#conteneurLoad'),
markersOld: {},
mapOptions: {

    center: new google.maps.LatLng(35.3152208011549, -70.40635300000008),

},...