MyBB Community Forums

What code would I need to use in order to popup my forum's shoutbox from my main site?
Forum is located at /forum, but I want to pop it up from other locations... such as /, and /name1, /name2, etc.

Hopefully that makes some sense.
Basically, I want a 'Shoutbox' link that does the exact same thing as the one on the forum... but that I can use in other places.

Thanks!

Anyone? May just give up on this if I don't get a response this time.
...can always add something else instead I suppose.

Thanks.