Add basic OSM support and set as default.

1 files changed, 24 insertions, 2 deletions

diff --git a/map.js b/map.js
index 7db6e43..5b36da7 100644
--- a/map.js
+++ b/map.js
@@ -21,19 +21,41 @@ debug = function (log_txt) {
 function initialize(lat, lng, res) {
   debug("Initializing Funkfeuer Graz Map");
 
+  var OSM_Mapnik = 'OSM_Mapnik';
+  var copyrightNode = document.createElement('div');
+  copyrightNode.id = 'copyright-control';
+  copyrightNode.style.fontSize = '11px';
+  copyrightNode.style.fontFamily = 'Arial, sans-serif';
+  copyrightNode.style.margin = '0 2px 2px 0';
+  copyrightNode.style.whitespace = 'nowrap';
+  copyrightNode.innerHTML = 'Map data &copy; <a href=\"http://www.openstreetmap.org/\">OpenStreetMap</a> / Google';
+  copyrightNode.index = 0;
+
   google.maps.visualRefresh=true;
   var mapOptions = {
     center: new google.maps.LatLng(lat, lng),  zoom: res,
     streetViewControl: false, disableDoubleClickZoom: true,
-    mapTypeId: google.maps.MapTypeId.ROADMAP,
+    mapTypeId: OSM_Mapnik,
     mapTypeControlOptions: {
       mapTypeIds: [google.maps.MapTypeId.ROADMAP, google.maps.MapTypeId.HYBRID,
-                   google.maps.MapTypeId.SATELLITE , google.maps.MapTypeId.TERRAIN ],
+                   google.maps.MapTypeId.SATELLITE , google.maps.MapTypeId.TERRAIN,
+                   OSM_Mapnik ],
       style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
     }
   };
   map = new google.maps.Map(document.getElementById("map"), mapOptions);
 
+  map.mapTypes.set("OSM_Mapnik", new google.maps.ImageMapType({
+      getTileUrl: function(coord, zoom) {
+          return "//tile.openstreetmap.org/" + zoom + "/" + coord.x + "/" + coord.y + ".png";
+      },
+      tileSize: new google.maps.Size(256, 256),
+      name: "OpenStreetMap",
+      maxZoom: 18
+  }));
+
+  map.controls[google.maps.ControlPosition.BOTTOM_RIGHT].push(copyrightNode);
+
 //##//  map.addControl(new RulerControl());
 
   var reloadconDiv = document.createElement('div');