diff --git a/WebContent/routing.js b/WebContent/OSRM.Routing.js
similarity index 100%
rename from WebContent/routing.js
rename to WebContent/OSRM.Routing.js
diff --git a/WebContent/OSRM.base.js b/WebContent/OSRM.base.js
index 8555c073f..6fab319cd 100644
--- a/WebContent/OSRM.base.js
+++ b/WebContent/OSRM.base.js
@@ -28,17 +28,20 @@ OSRM.G = OSRM.GLOBALS;		// abbreviations
 OSRM.C = OSRM.CONSTANTS;
 
 
-// [convenience function] declare one class to be a subclass of another class
-OSRM._inheritFromHelper = function() {};
+// declare one class to be a subclass of another class
+// (runs anonymous function to prevent local functions cluttering global namespace)
+(function() {
+var _inheritFromHelper = function() {};
 OSRM.inheritFrom = function( sub_class, base_class ) {
-	OSRM._inheritFromHelper.prototype = base_class.prototype;
-	sub_class.prototype = new OSRM._inheritFromHelper();
+	_inheritFromHelper.prototype = base_class.prototype;
+	sub_class.prototype = new _inheritFromHelper();
 	sub_class.prototype.constructor = sub_class;
 	sub_class.prototype.base = base_class.prototype;
 };
+}());
 
 
-// [convenience function] extend prototypes of a class -> used to add member values and functions
+// extend prototypes of a class -> used to add member values and functions
 OSRM.extend = function( target_class, properties ) {
 	for( property in properties ) {
 		target_class.prototype[property] = properties[property];
diff --git a/WebContent/main.html b/WebContent/main.html
index 2b5ba7740..c53a8e78f 100644
--- a/WebContent/main.html
+++ b/WebContent/main.html
@@ -56,7 +56,7 @@ or see http://www.gnu.org/licenses/agpl.txt.
 <script src="OSRM.Geocoder.js" type="text/javascript"></script>
 
 <script src="main.js" type="text/javascript"></script>
-<script src="routing.js" type="text/javascript"></script>
+<script src="OSRM.Routing.js" type="text/javascript"></script>
 <script src="OSRM.Via.js" type="text/javascript"></script>
 
 <script src="OSRM.Utils.js" type="text/javascript"></script>