Lightbox style script....

[acctman]

i'm looking for a lighbox style script that will dim the background and show a box that I can fill with instructions / html form code for the user. And not go away until the user clicks the forum submit button

I need to force a user update and this seems to be the best option if i can finish a lightbox style script.

[acctman]

i found a really good simple example here
http://www.emanueleferonato.com/2007/08/22/create-a-lightbox-effect-only-with-css-no-javascript-needed/