code: public String getValue(String uri, String localName)
    {
          Node a=m_attrs.getNamedItemNS(uri,localName);
          return (a==null) ? null : a.getNodeValue();
    }
docs: Look up an attribute's value by Namespace name.
  
  @param uri The Namespace URI, or the empty String if the
  name has no Namespace URI.
  @param localName The local name of the attribute.
  @return The attribute value as a string, or null if the
  attribute is not in the list.