new OpenLayers.Protocol.Script({
    url: "/geoserver//wfs",
    callbackKey: "format_options",
    callbackPrefix: "callback:",
    params: {
                    service: "WFS",
                    version: "1.0.0",
                    srsName: "EPSG:3857",
                    request: "GetFeature",
                    typeName: "SPORTSTAETTENOGD_4",
                    outputFormat: "json",
		    cql_filter: "OUTDOOR_IN = 'Indoor' OR OUTDOOR_IN = 'Outdoor'"
            }
    })