var minlon = <%= changeset_map_add.min_lon / GeoRecord::SCALE.to_f %>;
        var minlat = <%= changeset_map_add.min_lat / GeoRecord::SCALE.to_f %>;
        var maxlon = <%= changeset_map_add.max_lon / GeoRecord::SCALE.to_f %>;
        var maxlat = <%= changeset_map_add.max_lat / GeoRecord::SCALE.to_f %>;
        var bbox = new OpenLayers.Bounds(minlon, minlat, maxlon, maxlat);

        bounds.extend(bbox);
        box = addBoxToMap(bbox, {name: "changeset-<%= changeset_map_add.id %>"}, true);