AJAX Email Opt-in Form

I am looking to build an email list registration form using DHTML and AJAX. In the past, I've used DHTML "pop-in" forms to capture email addresses.? However, the way these are coded, they advance the visitor to a "thank you" or "success" page when the email address is captured and the Submit button is pressed.? Besides being clunky, this messes with my Website Optimizer tracking. What I am looking to do is to recreate this, with one distinction: when the form is submitted, the "pop-in" box will simply disappear.? I have personally been trying to code this up using Greybox, but sadly, my javascript abilities are rather limited. Thank you ## Deliverables I have a complete spec sheet, with layout, images, exact functionality, etc. ? Hopefully this description has given you a good overview.