diff -r 000000000000 -r 80851e48a68f rt/vm/src/main/java/org/apidesign/vm4brwsr/DirectlLibraries.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/DirectlLibraries.java	Wed Jun 08 06:50:38 2016 +0200
@@ -0,0 +1,26 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.vm4brwsr;
+
+final class DirectlLibraries {
+
+    static boolean isScriptLibrary(String type) {
+        return type.startsWith("net/java/html/lib/");
+    }
+
+}