diff --git a/ext/tagger/webtoolkit.drag.js b/ext/tagger/webtoolkit.drag.js
index 325f89a7..f18c6c2e 100644
--- a/ext/tagger/webtoolkit.drag.js
+++ b/ext/tagger/webtoolkit.drag.js
@@ -20,9 +20,9 @@ var DragHandler = {
         oElem.onmousedown = DragHandler._dragBegin;
 
         // callbacks
-        oElem.dragBegin = new Function();
-        oElem.drag = new Function();
-        oElem.dragEnd = new Function();
+        oElem.dragBegin = function () {};
+        oElem.drag = function () {};
+        oElem.dragEnd = function () {};
 
         return oElem;
     },