diff -r 3ce069ec3312 -r 5e13b1ac2886 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	Tue Jan 22 21:57:27 2013 +0100
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/api/Element.java	Sat Jan 26 08:47:05 2013 +0100
@@ -41,21 +41,21 @@
     
     @JavaScriptBody(
         args={"el", "property", "value"},
-        body="var e = window.document.getElementById(el.fld_id);\n"
+        body="var e = window.document.getElementById(el._id());\n"
            + "e[property] = value;\n"
     )
     static native void setAttribute(Element el, String property, Object value);
 
     @JavaScriptBody(
         args={"el", "property"},
-        body="var e = window.document.getElementById(el.fld_id);\n"
+        body="var e = window.document.getElementById(el._id());\n"
            + "return e[property];\n"
     )
     static native Object getAttribute(Element el, String property);
     
     @JavaScriptBody(
         args={"el"},
-        body="return window.document.getElementById(el.fld_id);"
+        body="return window.document.getElementById(el._id());"
     )
     static native Object getElementById(Element el);
     
@@ -65,8 +65,8 @@
      */
     @JavaScriptBody(
         args={ "ev", "r" },
-        body="var e = window.document.getElementById(this.fld_id);\n"
-           + "e[ev.fld_id] = function() { r.run__V(); };\n"
+        body="var e = window.document.getElementById(this._id());\n"
+           + "e[ev._id()] = function() { r.run__V(); };\n"
     )
     final void on(OnEvent ev, Runnable r) {
     }