Perl Question

I know that this a PHP list. I need some perl help. i need to take all the "." in a web address and make them into "-". example subdomain.domain.com --> subdomain-domain-com get it? heres my s/ code....but it doesn't work :-( $domain = s/./-/gi; ~kurth Kurth Bemis - Network/Systems Administrator, USAExpress.net/Ozone Computer "Jedi business, Go back to your drinks" - Anakin Skywalker, AOTC kurth@usaexpress.net | http://kurth.hardcrypto.com PGP key available - http://kurth.hardcrypto.com/pgp