diff --git a/src/js/app.js b/src/js/app.js
index 785a907..b53c852 100644
--- a/src/js/app.js
+++ b/src/js/app.js
@@ -1,8 +1,12 @@
 'use strict';
 
-// Check if a new AppCache is available on page load.
+//
+// AppCache
+//
+
 if (typeof window.applicationCache !== 'undefined') {
     window.onload = function() {
+        // Check if a new AppCache is available on page load.
         window.applicationCache.onupdateready = function() {
             if (window.applicationCache.status === window.applicationCache.UPDATEREADY) {
                 // Browser downloaded a new app cache
@@ -14,6 +18,10 @@ if (typeof window.applicationCache !== 'undefined') {
     };
 }
 
+//
+// Angular app config
+//
+
 var axe = require('axe-logger');
 
 // include angular modules