Data Relativity Question

My XTVD listings filter is now finished (or at least working
satisfactorily). The input file is the fairly large file of XTVD
listings. Most of the execution is in <xsl:for-each> loops on the
elements of a fairly small outside file of titles, people and things
that I want to look out for. Those loops establish a context outside
the input file that I'm continually having to step around (thanks to
the variable trick pointed out by several here). And, as I said, what
I have works amply well.

Though it wouldn't give me any different visual result, would I be
better served by using my watch list as the input and then go out of
that context to get the data in the xtvd file? Hmm. Now that I think
about it, it probably isn't going to make that much difference is it?
I mean, there's no way around the fact that I'm dealing with two files
here, and I'm going to run into context issues no matter how I slice
them.

Bob P
simply.bobp@xxxxxxxxx