Well well.. check this out:

http://www.see.ed.ac.uk/~mrichar1/perl/

(got there by:
Google -> http://www.codeproject.com/dll/trackuseridle.asp -> http://www.codeproject.com/dll/trackuseridle.asp?df=100&forumid=2894&select=772522#xx772522xx)
Ace