This class provides the server side part of the XMLContainer. It mainly
handles storing and retrieving of parts of the underlying XML document.
version: $Revision: 1.1 $ $Date: 2001/12/18 11:03:24 $ author: SMB
Determines the absolute XPath for the given node.
Parameters: node - The W3C DOM node whose XPath is to determine. The string representing the absolute XPath for this node.