Ever ran into a form that takes a bit of time to process and felt the need to alert the user by giving them a "processing" message? I'm sure you've seen these sort of messages at sites like Expedia or other travel sites. I ran across a need for one when developing a project at work and just didn't like the concept of submitting a form, going to a completely seperate processing page, and then the results page. The Lightbox Form is my solution for an in-depth form processing alert.  It will show the user that something is happening after they hit the submit button and prevent them from hitting it again. Check out a Lightbox Form in action.