diff --git a/js/plugin/Permalink.Routing.js b/js/plugin/Permalink.Routing.js
index 10f0f5d..ee5ad08 100644
--- a/js/plugin/Permalink.Routing.js
+++ b/js/plugin/Permalink.Routing.js
@@ -2,83 +2,83 @@
 
 // patch to not encode URL (beside 'layer', better readable/hackable, Browser can handle)
 L.Control.Permalink.include({
-	_update_href: function() {
-		//var params = L.Util.getParamString(this._params);
-		var params = this.getParamString(this._params);
+    _update_href: function () {
+        //var params = L.Util.getParamString(this._params);
+        var params = this.getParamString(this._params);
 
-		var sep = '?';
-		if (this.options.useAnchor) sep = '#';
-		var url = this._url_base + sep + params.slice(1);
-		if (this._href) this._href.setAttribute('href', url);
-		if (this.options.useLocation)
-			location.replace('#' + params.slice(1));
-		return url;
-	},
-          
-	getParamString: function (obj, existingUrl, uppercase) {
-		var params = [];
-		for (var i in obj) {
-      // do encode layer (e.g. spaces)
-      if (i === 'layer') {
-        params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
-      } else {
-        params.push(uppercase ? i.toUpperCase() : i + '=' + obj[i]);
-      }
-		}
-		return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
-	}
+        var sep = '?';
+        if (this.options.useAnchor) sep = '#';
+        var url = this._url_base + sep + params.slice(1);
+        if (this._href) this._href.setAttribute('href', url);
+        if (this.options.useLocation)
+            location.replace('#' + params.slice(1));
+        return url;
+    },
+
+    getParamString: function (obj, existingUrl, uppercase) {
+        var params = [];
+        for (var i in obj) {
+            // do encode layer (e.g. spaces)
+            if (i === 'layer') {
+                params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
+            } else {
+                params.push(uppercase ? i.toUpperCase() : i + '=' + obj[i]);
+            }
+        }
+        return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
+    }
 });
 
 
 L.Control.Permalink.include({
 
-	initialize_routing: function() {
-		this.on('update', this._set_routing, this);
-		this.on('add', this._onadd_routing, this);
-	},
+    initialize_routing: function () {
+        this.on('update', this._set_routing, this);
+        this.on('add', this._onadd_routing, this);
+    },
 
-	_onadd_routing: function(e) {
-    this.options.routingOptions.on('update', this._update_routing, this);
-    this.options.nogos.on('update', this._update_routing, this);
-    // waypoint add, move, delete (but last)
-    this.options.routing.on('routing:routeWaypointEnd', this._update_routing, this);
-    // delete last waypoint
-    this.options.routing.on('waypoint:click', function(evt) {
-        var r = evt.marker._routing;
-        if (!r.prevMarker && ! r.nextMarker) {
-            this._update_routing(evt);
+    _onadd_routing: function (e) {
+        this.options.routingOptions.on('update', this._update_routing, this);
+        this.options.nogos.on('update', this._update_routing, this);
+        // waypoint add, move, delete (but last)
+        this.options.routing.on('routing:routeWaypointEnd', this._update_routing, this);
+        // delete last waypoint
+        this.options.routing.on('waypoint:click', function (evt) {
+            var r = evt.marker._routing;
+            if (!r.prevMarker && !r.nextMarker) {
+                this._update_routing(evt);
+            }
+        }, this);
+    },
+
+    _update_routing: function (evt) {
+        var router = this.options.router,
+            routing = this.options.routing,
+            latLngs;
+
+        if (evt && evt.options) {
+            router.setOptions(evt.options);
         }
-    }, this);
-	},
 
-	_update_routing: function(evt) {
-    var router = this.options.router,
-        routing = this.options.routing,
-        latLngs;
+        latLngs = routing.getWaypoints();
+        this._update(router.getUrlParams(latLngs));
+    },
 
-    if (evt && evt.options) {
-      router.setOptions(evt.options);
+    _set_routing: function (e) {
+        var router = this.options.router,
+            routing = this.options.routing,
+            routingOptions = this.options.routingOptions,
+            nogos = this.options.nogos;
+
+        var opts = router.parseUrlParams(e.params);
+        router.setOptions(opts);
+        routingOptions.setOptions(opts);
+        nogos.setOptions(opts);
+
+        if (opts.lonlats) {
+            routing.draw(false);
+            routing.clear();
+            routing.setWaypoints(opts.lonlats);
+        }
     }
-
-    latLngs = routing.getWaypoints();
-    this._update(router.getUrlParams(latLngs));
-	},
-
-	_set_routing: function(e) {
-    var router = this.options.router,
-        routing = this.options.routing,
-        routingOptions = this.options.routingOptions,
-        nogos = this.options.nogos;
-
-    var opts = router.parseUrlParams(e.params);
-    router.setOptions(opts);
-    routingOptions.setOptions(opts);
-    nogos.setOptions(opts);
-    
-    if (opts.lonlats) {
-        routing.draw(false);
-        routing.clear();
-        routing.setWaypoints(opts.lonlats);
-    }
-  }
 });