Markup for the boards

Someone needs to make a greasemonkey extension for the boards that renders bbcode in a post when ``bbcode'' is in the email field, markdown when ``markdown'' is in the email field, html when ``html'' is in the email field,  LaTeX when ``latex'' is in the email field, and sexpcode when ``sexpcode'' is in the emailfield.

Don't let me down, /czechrepublic/, I'm counting on you.

Should be easy with txr.