new L.OSM.CycleMap(thunderforestOptions).addTo(map);
} else if (args.layer === "transportmap") {
new L.OSM.TransportMap(thunderforestOptions).addTo(map);
+ } else if (args.layer === "opnvkarte") {
+ new L.OSM.OPNVKarte().addTo(map);
} else if (args.layer === "hot") {
new L.OSM.HOT().addTo(map);
}