Python-сообщество

var store = new GeoExt.data.FeatureStore({
            layer: route_layer,
            fields: [
                {name: "length"}
            ],
            proxy: new GeoExt.data.ProtocolProxy({
                protocol: new OpenLayers.Protocol.HTTP({
                    url: "php/doit.php",
                    format: new OpenLayers.Format.GeoJSON({
                        internalProjection: epsg_900913,
                        externalProjection: epsg_4326
                    })
                })
            })
        });