ring topology completely factored out
diff --git a/web/ons-demo/js/forward.js b/web/ons-demo/js/forward.js
index 9c4d03f..5e854ee 100644
--- a/web/ons-demo/js/forward.js
+++ b/web/ons-demo/js/forward.js
@@ -3,3 +3,10 @@
 ***************************************************************************************************/
 
 var updateTopology;
+
+
+/***************************************************************************************************
+defined by whichever topology module is included
+***************************************************************************************************/
+var createTopologyView;
+var drawTopology;