public static XmlAttribute AddAttribute(XmlElement XmlElement, string name, string value)
{
XmlDocument docOwner = null;
XmlAttribute attrNew = null;
docOwner = XmlElement.OwnerDocument;
attrNew = docOwner.CreateAttribute(name);
attrNew.InnerText = value;
XmlElement.Attributes.Append(attrNew);
return attrNew;
}