private void printQualifiedName(Writer out, Attribute a) throws IOException {
    String prefix = a.getNamespace().getPrefix();
    if ((prefix != null) && (!prefix.equals(""))) {
      out.write(prefix);
      out.write(':');
      out.write(a.getName());
    }
    else {
      out.write(a.getName());
    }
  }
private void printQualifiedName(Writer out, Attribute a)