private void WriteLayoutElement(XmlWriter writer)
{
// if we're left-to-right, we don't need to write out default values
if (RightToLeftScript)
{
writer.WriteStartElement("layout");
writer.WriteStartElement("orientation");
// omit default value for "lines" attribute
writer.WriteAttributeString("characters", "right-to-left");
writer.WriteEndElement();
writer.WriteEndElement();
}
}