diff -r 81f6e7778135 -r aeb9fe11cd60 vm/src/main/java/org/apidesign/vm4brwsr/GenJS.java
--- a/vm/src/main/java/org/apidesign/vm4brwsr/GenJS.java	Thu Dec 06 21:31:09 2012 +0100
+++ b/vm/src/main/java/org/apidesign/vm4brwsr/GenJS.java	Thu Dec 06 22:02:10 2012 +0100
@@ -114,7 +114,7 @@
         }
         out.append(
               "  global.bck2brwsr = function() { return {\n"
-            + "    loadClass : function(name) { return vm[name](true); }\n"
+            + "    loadClass : function(name) { return vm[name.replace__Ljava_lang_String_2CC(name, '.','_')](true); }\n"
             + "  };\n};\n");
         out.append("}(this));");
     }