diff -r 790956c311ef -r 8125ba3f4f6d web/data/cubicweb.ajax.js
--- a/web/data/cubicweb.ajax.js	Fri Mar 07 14:03:44 2014 +0100
+++ b/web/data/cubicweb.ajax.js	Thu Jun 12 14:10:02 2014 +0200
@@ -1,4 +1,4 @@
-/* copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+/* copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
  * contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
  *
  * This file is part of CubicWeb.
@@ -517,16 +517,20 @@
     });
 }
 
-function userCallback(cbname) {
+userCallback = cw.utils.deprecatedFunction(
+    '[3.19] use a plain ajaxfunc instead of user callbacks',
+    function userCallback(cbname) {
     setProgressCursor();
     var d = loadRemote(AJAX_BASE_URL, ajaxFuncArgs('user_callback', null, cbname));
     d.addCallback(resetCursor);
     d.addErrback(resetCursor);
     d.addErrback(remoteCallFailed);
     return d;
-}
+});
 
-function userCallbackThenUpdateUI(cbname, compid, rql, msg, registry, nodeid) {
+userCallbackThenUpdateUI = cw.utils.deprecatedFunction(
+    '[3.19] use a plain ajaxfunc instead of user callbacks',
+    function userCallbackThenUpdateUI(cbname, compid, rql, msg, registry, nodeid) {
     var d = userCallback(cbname);
     d.addCallback(function() {
         $('#' + nodeid).loadxhtml(AJAX_BASE_URL, ajaxFuncArgs('render', {'rql': rql},
@@ -535,9 +539,11 @@
             updateMessage(msg);
         }
     });
-}
+});
 
-function userCallbackThenReloadPage(cbname, msg) {
+userCallbackThenReloadPage = cw.utils.deprecatedFunction(
+    '[3.19] use a plain ajaxfunc instead of user callbacks',
+    function userCallbackThenReloadPage(cbname, msg) {
     var d = userCallback(cbname);
     d.addCallback(function() {
         window.location.reload();
@@ -545,7 +551,7 @@
             updateMessage(msg);
         }
     });
-}
+});
 
 /**
  * .. function:: unregisterUserCallback(cbname)
@@ -553,14 +559,17 @@
  * unregisters the python function registered on the server's side
  * while the page was generated.
  */
-function unregisterUserCallback(cbname) {
+unregisterUserCallback = cw.utils.deprecatedFunction(
+    '[3.19] use a plain ajaxfunc instead of user callbacks',
+    function unregisterUserCallback(cbname) {
     setProgressCursor();
     var d = loadRemote(AJAX_BASE_URL, ajaxFuncArgs('unregister_user_callback',
                                             null, cbname));
     d.addCallback(resetCursor);
     d.addErrback(resetCursor);
     d.addErrback(remoteCallFailed);
-}
+});
+
 
 //============= XXX move those functions? ====================================//
 function openHash() {