fixing broken TopPlus baselayer

www/map.js

@@ -19,7 +19,7 @@
 	You should have received a copy of the GNU General Public License along
 	with this program. If not, see https://www.gnu.org/licenses/.
 
-	Version r20211017.2 (2021-10-17)
+	Version VVVVV
 */
 
 /* add station marker */
@@ -153,9 +153,13 @@ $(document).ready(function() {
 	case 'opentopo': // add OpenTopoMap tile layer
 		L.tileLayer.provider('OpenTopoMap').addTo(map);
 		break;
-	case 'mapnik': // add OpenStreetMap.Mapni tile layer
+	case 'mapnik': // add OpenStreetMap.Mapnik tile layer
 		L.tileLayer.provider('OpenStreetMap.Mapnik').addTo(map);
 		break;
+	case 'topplus': // add TopPlus tile layer (https://gdz.bkg.bund.de/index.php/default/webdienste/topplus-produkte/wmts-topplusopen-wmts-topplus-open.html)
+		L.tileLayer('https://sgx.geodatenzentrum.de/wmts_topplus_open/tile/1.0.0/web/default/WEBMERCATOR/{z}/{y}/{x}.png',
+			{attribution: '&copy; Bundesamt für Kartographie und Geodäsie ('+jahr+'), Datenquellen: <a href="http://sg.geodatenzentrum.de/web_public/Datenquellen_TopPlus_Open.pdf">Geodatenzentrum</a>'}).addTo(map);
+		break;
 	default: // use OpenStreetMap.DE as default
 		L.tileLayer.provider('OpenStreetMap.DE').addTo(map);
 	};

www/map.js.en

@@ -19,7 +19,7 @@
 	You should have received a copy of the GNU General Public License along
 	with this program. If not, see https://www.gnu.org/licenses/.
 
-	Version r20211017.2 (2021-10-17)
+	Version VVVVV
 */
 
 /* add station marker */
@@ -157,6 +157,10 @@ $(document).ready(function() {
 	case 'mapnik': // add OpenStreetMap.Mapni tile layer
 		L.tileLayer.provider('OpenStreetMap.Mapnik').addTo(map);
 		break;
+	case 'topplus': // add TopPlus tile layer (https://gdz.bkg.bund.de/index.php/default/webdienste/topplus-produkte/wmts-topplusopen-wmts-topplus-open.html)
+		L.tileLayer('https://sgx.geodatenzentrum.de/wmts_topplus_open/tile/1.0.0/web/default/WEBMERCATOR/{z}/{y}/{x}.png',
+			{attribution: '&copy; Federal Agency for Cartography and Geodesy ('+jahr+'), Datasource: <a href="http://sg.geodatenzentrum.de/web_public/Datenquellen_TopPlus_Open.pdf">Geodatenzentrum</a>'}).addTo(map);
+		break;
 	default: // use OpenStreetMap.DE as default
 		L.tileLayer.provider('OpenStreetMap.DE').addTo(map);
 	};

www/misc.js

@@ -19,7 +19,7 @@
 	You should have received a copy of the GNU General Public License along
 	with this program. If not, see http://www.gnu.org/licenses/.
 
-	Version r20211017.2 (2021-10-17)
+	Version VVVVV
 */
 
 /* calculate marker radius from magnitude
@@ -81,6 +81,7 @@ function parseQueryString() {
 }
 
 /* create global vars */
+var jahr = new Date().getFullYear();
 var map;
 var openMarkerID;
 var eventTable = {};