var args = OpenLayers.Util.getParameters();
if (!args.layer || args.layer == "mapnik") {
var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
var args = OpenLayers.Util.getParameters();
if (!args.layer || args.layer == "mapnik") {
var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {