diff --git a/node/utils/Changeset.js b/node/utils/Changeset.js
index 2c9e06838..9e1b60ebe 100644
--- a/node/utils/Changeset.js
+++ b/node/utils/Changeset.js
@@ -3,6 +3,12 @@
  * Can be found in https://github.com/ether/pad/blob/master/infrastructure/ace/www/easysync2.js
  */ 
 
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /*
  * Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
  *
diff --git a/static/js/ace.js b/static/js/ace.js
index 27899aaab..69d3cf09b 100644
--- a/static/js/ace.js
+++ b/static/js/ace.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/ace2_common.js b/static/js/ace2_common.js
index de2fede1c..1246a16ec 100644
--- a/static/js/ace2_common.js
+++ b/static/js/ace2_common.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
@@ -142,4 +148,4 @@ function htmlPrettyEscape(str)
 if (typeof exports !== "undefined")
 {
   exports.map = map;
-}
\ No newline at end of file
+}
diff --git a/static/js/ace2_inner.js b/static/js/ace2_inner.js
index 663b5cca0..65f8ec7e7 100644
--- a/static/js/ace2_inner.js
+++ b/static/js/ace2_inner.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/broadcast.js b/static/js/broadcast.js
index 32424731b..865574abd 100644
--- a/static/js/broadcast.js
+++ b/static/js/broadcast.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/broadcast_revisions.js b/static/js/broadcast_revisions.js
index 828677733..33a2f9dfa 100644
--- a/static/js/broadcast_revisions.js
+++ b/static/js/broadcast_revisions.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/broadcast_slider.js b/static/js/broadcast_slider.js
index 68f424495..af5a50411 100644
--- a/static/js/broadcast_slider.js
+++ b/static/js/broadcast_slider.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/changesettracker.js b/static/js/changesettracker.js
index 09e413f39..cc7f64623 100644
--- a/static/js/changesettracker.js
+++ b/static/js/changesettracker.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/chat.js b/static/js/chat.js
index b6f994293..4dade69f3 100644
--- a/static/js/chat.js
+++ b/static/js/chat.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
  *
@@ -168,4 +174,4 @@ var chat = (function()
   }
 
   return self;
-}());
\ No newline at end of file
+}());
diff --git a/static/js/collab_client.js b/static/js/collab_client.js
index c64b99949..fafe0fd2f 100644
--- a/static/js/collab_client.js
+++ b/static/js/collab_client.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/colorutils.js b/static/js/colorutils.js
index 03141271b..92d8da719 100644
--- a/static/js/colorutils.js
+++ b/static/js/colorutils.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // DO NOT EDIT THIS FILE, edit infrastructure/ace/www/colorutils.js
 // THIS FILE IS ALSO SERVED AS CLIENT-SIDE JS
 /**
diff --git a/static/js/contentcollector.js b/static/js/contentcollector.js
index 577b24c6c..69036ba25 100644
--- a/static/js/contentcollector.js
+++ b/static/js/contentcollector.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.contentcollector
 // %APPJET%: import("etherpad.collab.ace.easysync2.Changeset");
 // %APPJET%: import("etherpad.admin.plugins");
diff --git a/static/js/cssmanager.js b/static/js/cssmanager.js
index 5601ea25b..b8208b83f 100644
--- a/static/js/cssmanager.js
+++ b/static/js/cssmanager.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/cssmanager_client.js b/static/js/cssmanager_client.js
index 2fa61027e..60bf9f8c5 100644
--- a/static/js/cssmanager_client.js
+++ b/static/js/cssmanager_client.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // DO NOT EDIT THIS FILE, edit infrastructure/ace/www/cssmanager.js
 /**
  * Copyright 2009 Google Inc.
diff --git a/static/js/domline.js b/static/js/domline.js
index 7732805fd..56f74a1cd 100644
--- a/static/js/domline.js
+++ b/static/js/domline.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.domline
 // %APPJET%: import("etherpad.admin.plugins");
 /**
diff --git a/static/js/domline_client.js b/static/js/domline_client.js
index d4dd4606d..a152412c9 100644
--- a/static/js/domline_client.js
+++ b/static/js/domline_client.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // DO NOT EDIT THIS FILE, edit infrastructure/ace/www/domline.js
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.domline
 /**
diff --git a/static/js/draggable.js b/static/js/draggable.js
index 2f40c1c7e..7bf523eb5 100644
--- a/static/js/draggable.js
+++ b/static/js/draggable.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/easysync2.js b/static/js/easysync2.js
index 7f5d0cf98..17ab585d9 100644
--- a/static/js/easysync2.js
+++ b/static/js/easysync2.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2
 // %APPJET%: jimport("com.etherpad.Easysync2Support");
 /**
diff --git a/static/js/easysync2_client.js b/static/js/easysync2_client.js
index 5d0e582d8..3611da233 100644
--- a/static/js/easysync2_client.js
+++ b/static/js/easysync2_client.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // DO NOT EDIT THIS FILE, edit infrastructure/ace/www/easysync2.js
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2
 /**
diff --git a/static/js/linestylefilter.js b/static/js/linestylefilter.js
index f6cf9f357..9164d42f0 100644
--- a/static/js/linestylefilter.js
+++ b/static/js/linestylefilter.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.linestylefilter
 // %APPJET%: import("etherpad.collab.ace.easysync2.Changeset");
 // %APPJET%: import("etherpad.admin.plugins");
diff --git a/static/js/linestylefilter_client.js b/static/js/linestylefilter_client.js
index b1bdae6ef..69c3f1242 100644
--- a/static/js/linestylefilter_client.js
+++ b/static/js/linestylefilter_client.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 // DO NOT EDIT THIS FILE, edit infrastructure/ace/www/linestylefilter.js
 // THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.linestylefilter
 /**
diff --git a/static/js/pad2.js b/static/js/pad2.js
index 1498a74ca..b75c1f9cc 100644
--- a/static/js/pad2.js
+++ b/static/js/pad2.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
  *
diff --git a/static/js/pad_connectionstatus.js b/static/js/pad_connectionstatus.js
index 3d244303c..d35eb02d6 100644
--- a/static/js/pad_connectionstatus.js
+++ b/static/js/pad_connectionstatus.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_cookie.js b/static/js/pad_cookie.js
index 5db6a2ca0..64211750d 100644
--- a/static/js/pad_cookie.js
+++ b/static/js/pad_cookie.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_docbar.js b/static/js/pad_docbar.js
index 6ee38f686..c67ca55c4 100644
--- a/static/js/pad_docbar.js
+++ b/static/js/pad_docbar.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_editbar.js b/static/js/pad_editbar.js
index 97bd7f85b..9de23f82e 100644
--- a/static/js/pad_editbar.js
+++ b/static/js/pad_editbar.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_editor.js b/static/js/pad_editor.js
index dc76898c4..183de948d 100644
--- a/static/js/pad_editor.js
+++ b/static/js/pad_editor.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_impexp.js b/static/js/pad_impexp.js
index fe1d28fbe..4cf7ffcd8 100644
--- a/static/js/pad_impexp.js
+++ b/static/js/pad_impexp.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_modals.js b/static/js/pad_modals.js
index ccd4607ec..cf9d04355 100644
--- a/static/js/pad_modals.js
+++ b/static/js/pad_modals.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_savedrevs.js b/static/js/pad_savedrevs.js
index ae4220cd9..487e85f1a 100644
--- a/static/js/pad_savedrevs.js
+++ b/static/js/pad_savedrevs.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_userlist.js b/static/js/pad_userlist.js
index e11cd3acb..748674916 100644
--- a/static/js/pad_userlist.js
+++ b/static/js/pad_userlist.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/pad_utils.js b/static/js/pad_utils.js
index 331590fed..76a167057 100644
--- a/static/js/pad_utils.js
+++ b/static/js/pad_utils.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/plugins.js b/static/js/plugins.js
index 2ebf98f3c..b29d01d4d 100644
--- a/static/js/plugins.js
+++ b/static/js/plugins.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 plugins = {
   callHook: function(hookName, args)
   {
diff --git a/static/js/skiplist.js b/static/js/skiplist.js
index c21873887..c9654be46 100644
--- a/static/js/skiplist.js
+++ b/static/js/skiplist.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/undo-xpopup.js b/static/js/undo-xpopup.js
index 2fc0ee1a7..e733f3ea3 100644
--- a/static/js/undo-xpopup.js
+++ b/static/js/undo-xpopup.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/undomodule.js b/static/js/undomodule.js
index b070ce253..3891629aa 100644
--- a/static/js/undomodule.js
+++ b/static/js/undomodule.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *
diff --git a/static/js/virtual_lines.js b/static/js/virtual_lines.js
index e27e4af40..ece96b149 100644
--- a/static/js/virtual_lines.js
+++ b/static/js/virtual_lines.js
@@ -1,3 +1,9 @@
+/**
+ * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This helps other people to understand this code better and helps them to improve it.
+ * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
+ */
+
 /**
  * Copyright 2009 Google Inc.
  *