Hi willywagtail!
Welcome to A2k from another of the rabid crossworders!
The word you seek is CODEX
(To get the smileys, go to 'Preview' - it will show how your message will look when posted, and below is a "work box" where you can make any changes you may want. Just set your cursor at the spot you want your Emoticon (smiley)
to appear and then go to the list of smilies to the left of your workbox, choose the appropriate one and click on it - voila!
Then scroll down to submit and Click!