+L.OSM = {};
+
+L.OSM.TileLayer = L.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png' :
+ 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+ attribution: '© <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors'
+ },
+
+ initialize: function (options) {
+ options = L.Util.setOptions(this, options);
+ L.TileLayer.prototype.initialize.call(this, options.url);
+ }
+});
+
+L.OSM.Mapnik = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png' :
+ 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+ maxZoom: 19
+ }
+});
+
+L.OSM.CycleMap = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://{s}.tile.thunderforest.com/cycle/{z}/{x}/{y}{r}.png?apikey={apikey}' :
+ 'http://{s}.tile.thunderforest.com/cycle/{z}/{x}/{y}{r}.png?apikey={apikey}',
+ attribution: '© <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors. Tiles courtesy of <a href="http://www.thunderforest.com/" target="_blank">Andy Allan</a>'
+ }
+});
+
+L.OSM.TransportMap = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://{s}.tile.thunderforest.com/transport/{z}/{x}/{y}{r}.png?apikey={apikey}' :
+ 'http://{s}.tile.thunderforest.com/transport/{z}/{x}/{y}{r}.png?apikey={apikey}',
+ attribution: '© <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors. Tiles courtesy of <a href="http://www.thunderforest.com/" target="_blank">Andy Allan</a>'
+ }
+});
+
+L.OSM.MapQuestOpen = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://otile{s}-s.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png' :
+ 'http://otile{s}.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png',
+ subdomains: '1234',
+ attribution: '© <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors. ' + document.location.protocol === 'https:' ?
+ 'Tiles courtesy of <a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="https://developer.mapquest.com/content/osm/mq_logo.png">' :
+ 'Tiles courtesy of <a href="http://www.mapquest.com/" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png">'
+ }
+});
+
+L.OSM.HOT = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://tile-{s}.openstreetmap.fr/hot/{z}/{x}/{y}.png' :
+ 'http://tile-{s}.openstreetmap.fr/hot/{z}/{x}/{y}.png',
+ maxZoom: 20,
+ subdomains: 'abc',
+ attribution: '© <a href="http://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors. Tiles courtesy of <a href="http://hot.openstreetmap.org/" target="_blank">Humanitarian OpenStreetMap Team</a>'
+ }
+});
+
+L.OSM.GPS = L.OSM.TileLayer.extend({
+ options: {
+ url: document.location.protocol === 'https:' ?
+ 'https://gps-{s}.tile.openstreetmap.org/lines/{z}/{x}/{y}.png' :
+ 'http://gps-{s}.tile.openstreetmap.org/lines/{z}/{x}/{y}.png',
+ maxZoom: 20,
+ subdomains: 'abc'
+ }
+});
+
+L.OSM.DataLayer = L.FeatureGroup.extend({