Loading HTML from flash button

This is probably a n00b question with an easy answer but something just isnt clicking. Im making a website for a guy who has no flash knowledge so if he ever wants to edit some info on his site, it needs to be in HTML.

basically i’ve created a site in flash but what i need is that when i click a flash button, a small test box appears that has all the info he would need. It cant popup as a new window. it has to be part of it.

Thanks!