DPV,
You don't even have to do that. If you look at the site's nav buttons in the upper right of the page, you can just click the "chat" button which brings up a jIRC applet, which in turn allows you to chat on SM's IRC channel right from your browser. Of course, if you want to use your own IRC client, such as mIRC, you'd have to get all the channel information.
"Terminat Bora Diem, Terminal Auctor opus."