code: public String getAttributeNS(String namespaceURI, String localName)
    {
  
      AVT avt = getLiteralResultAttributeNS(namespaceURI, localName);
  
      if ((null != avt))
      {
        return avt.getSimpleString();
      }
  
      return EMPTYSTRING;
    }
docs: Return the raw value of the attribute.
  
  @param namespaceURI Namespace URI of attribute node to get
  @param localName Local part of qualified name of attribute node to get
  
  @return The Attr value as a string, or the empty string if that attribute
  does not have a specified or default value