diff --git a/lib/scripts/script.js b/lib/scripts/script.js
index fc8cb609610780adc7b6b74ae8b0a7d4b7e9d932..24473c2e6d9e82c02f3d4d2ec488aa562e315d5f 100644
--- a/lib/scripts/script.js
+++ b/lib/scripts/script.js
@@ -14,10 +14,12 @@ if ('function' === typeof jQuery && 'function' === typeof jQuery.noConflict) {
  */
 function DEPRECATED(msg){
     if(!window.console) return;
-    if(!arguments.callee) return;
+    if(!msg) msg = '';
 
-    var func = arguments.callee.caller.name;
-    var line = 'DEPRECATED function call '+func+'(). '+msg;
+    var func;
+    if(arguments.callee) func = arguments.callee.caller.name;
+    if(func) func = ' '+func+'()';
+    var line = 'DEPRECATED function call'+func+'. '+msg;
 
     if(console.warn){
         console.warn(line);