if (TransMenu.isSupported()) {
        var ms = new TransMenuSet(TransMenu.direction.down, 1, 2, TransMenu.reference.bottomLeft);

        var menu1 = ms.addMenu(document.getElementById('aboutus'));
        menu1.addItem('About Us', 'about.php');
        menu1.addItem('Certificate', 'certificates.php');
        
        var menu2= ms.addMenu(document.getElementById('portfolio'));
        menu2.addItem('Current', 'portfolio-current.php');
        menu2.addItem('Track Record', 'portfolio-track-record.php');
                    
        TransMenu.spacerGif = 'images/spacer.gif';
        TransMenu.renderAll();
        TransMenu.initialize();
    }