diff --git a/lib/client/dom.js b/lib/client/dom.js
index 1edc257b..450353cc 100644
--- a/lib/client/dom.js
+++ b/lib/client/dom.js
@@ -1378,6 +1378,9 @@ var CloudCmd, Util, DOM, CloudFunc;
              * unified way to get RefreshButton
              */
             this.getRefreshButton        = function(){
+                if (!CloudFunc)
+                    console.trace();
+                
                 var lPanel      = this.getPanel(),
                     lRefresh    = this.getByClass(CloudFunc.REFRESHICON, lPanel),
                     lRet        = lRefresh[0];