internal static MemberGroupInfo[] GetMemberGroupInfo(XmlNode node)
{
XmlNodeList list = node.SelectNodes ("//group");
MemberGroupInfo[] infos = new MemberGroupInfo [list.Count];
for (int i = 0; i < infos.Length; i++) {
infos[i] = new MemberGroupInfo (list[i]);
}
return infos;
}