Thank you very much. I'm going to do a mea culpa here. The code is not, in fact, hanging -- it's just taking a very long time to execute. The thing that confuses me, though, is that for most pages, it does all of the matching in a matter of a few seconds. For the colts and the jets however, it takes something like 2 HOURS. Intuitively, it seems like there must be something that is different about their pages, but I'm not sure what it is. I think that I need to learn more about how the regex engine works. I clearly don't have a good understanding of backtracking. Maybe it's time for me to get myself a copy of "Mastering Regular Expressions!"

I will give what you have suggested a try.

Thank you very much for your efforts on my behalf.