Generating XML.

[TuxedoKamen]

    	Hello.  I have a program that needs to do the following:
1. Reads an XML file using the minidom interface
2. Proceeds to present the information to the user for viewing
3. Allows the user to update the information if desired
4. If user made any changes, saves updated information to XML file.

    	I'm familiar with how to do one, two, and three, but four has me a 
little confused.  I am assuming it is possible to manipulate the various 
nodes of the dom tree as necessary (this would certainly make editing the 
XML easy), but I don't see any mention of exporting the tree to an external 
textfile.  Is this possible?  If not, what's the best way to get a DOM tree 
out of an application and into a text file?