[xml] Temporarily Holding Nodes

[dhk <dhkuhl optonline net>]

What is the best way to temporarily hold nodes off to the side of a 
program for later use?

I'm parsing an xml document to display only some of the data from the 
xml file so the user can edit it.  After that I want to combine the data 
displayed with data that wasn't displayed.  The only think is I'm not 
sure what to do with the nodes of data that weren't displayed while the 
program is being used.

Should the unused data be held in a separate document, a nodeset, or 
should it be a linked list of nodes?  The document fragments sound like 
it might be something I want, but I don't know what there intended use 
is.  Anyone know?  Whatever it is it should be something that can be 
easily merged.

Thanks in advance,
dave