public void Save(ICompilateur comp, System.Xml.XmlWriter writer, ref System.Windows.Forms.HtmlElement child)
 {
     writer.WriteStartElement("parallel");
     if (this.indent > 0)
     {
         writer.WriteAttributeString("indent", this.indent.ToString());
     }
     writer.WriteStartElement("code");
     // search next sibling child of code
     System.Windows.Forms.HtmlElement subElement = child.NextSibling;
     comp.Save(writer, ref subElement, this.indent + 1);
     writer.WriteEndElement();
     writer.WriteEndElement();
     child = subElement;
 }