;
                    for (var geo_name in geojson_data) {
                        geo.add(new Option(geo_name, geo_name));
                    }
                    for (var field_key in fields) {
                        for (var i in column_names_out) {
                            fields[field_key].add(new Option(column_names_out[i], column_names_out[i]));
                        }
                    }
                } else {
                    for (var i in column_names_out) {
                        