Forums Scripts & Popups parse a string (check if URL is in a string)

I have to admit, I was wondering why you decided to include irc and not ftp.

Sorry if it seamed like I was singling out your regex but it was the only other good one in this thread so naturally I compared to it. Besides, like I said, I've just recently taken on regex on a more serious level so I cannot promise my regex is error free and I also believe it could be smaller.