diff -r 42f0ad9e4152 -r 9359b006782b 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	Sat Jan 12 20:27:52 2013 +0100
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java	Mon Jan 14 11:30:56 2013 +0100
@@ -51,9 +51,9 @@
      * @param r the runnable to execute, never null
      */
     @JavaScriptBody(
-        args={ "self", "ev", "r" },
-        body="var e = window.document.getElementById(self.fld_id);\n"
-           + "e[ev.fld_id] = function() { r.run__V(r); };\n"
+        args={ "ev", "r" },
+        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);