Replies with boxes

How do I post a reply and quote other user's posts in those boxes?

[CarlC]

When posting a reply to a post, I would like to quote previous posts in those little boxes, the way others do... how is that done?

Thanks!

I love Webmasterworld! (and I'll be in Vegas to show it!)

[encyclo]

It's all detailed here:

[webmasterworld.com...]

The link is to the left of the posting textarea when composing a message.

[kodaks]

(deleted duplicate)

[CarlC]

It's all detailed here

got it... thanks!