xkcd thread formatter

This is for people wishing to start a new thread for the latest xkcd comic on the xkcd forum. It automatically generates the BBCode for the link to the comic, puts the subject in the correct format, and adds the title text. Some things to remember when using this:

• Always remember to add some comment to start the discussion.
• Always remember to check if someone has made a thread before you.
• It will say "The submitted form was invalid. Try submitting again." You will have to submit that form for it to work. (Or you can just copy the code to a different window.)