diff -r 9359b006782b -r f761555d8312 javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java	Mon Jan 14 11:30:56 2013 +0100
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java	Mon Jan 21 16:26:47 2013 +0100
@@ -55,7 +55,8 @@
         body="var e = window.document.getElementById(this.fld_id);\n"
            + "e[ev.fld_id] = function() { r.run__V(); };\n"
     )
-    final native void on(OnEvent ev, Runnable r);
+    final void on(OnEvent ev, Runnable r) {
+    }
 
     /** Shows alert message dialog in a browser.
      * @param msg the message to show