class VoiceXmlDocument extends XmlDocument implements Serializable {

    public Vxml getVxml() {
        NodeList vxml = getElementsByTagName(Vxml.TAG_NAME);
        if (vxml.getLength() == 0) {
            vxml = getElementsByTagNameNS("*", Vxml.TAG_NAME);
            if (vxml.getLength() == 0) {
                return null;
            }
        }

        return (Vxml) vxml.item(0);
    }

    public  VoiceXmlDocument();
    public  VoiceXmlDocument(final InputSource source);
    public  VoiceXmlDocument(final Document doc);

}