"http://c.tile.openstreetmap.org/${z}/${x}/${y}.png"
];
options = OpenLayers.Util.extend({
- numZoomLevels: 19,
+ numZoomLevels: 20,
attribution: "© <a href='http://www.openstreetmap.org/copyright'>OpenStreetMap</a> contributors",
buffer: 0,
transitionEffect: "resize"