User-defined HTML_QuickForm forms

I need to setup a system whereby my site's users can define forms which will be stored and used elsewhere on the site. I'm thinking the most appropriate way to achieve this would be to provide a (javascript) frontend that lets them design the form and then taking the results of that and storing it in a database in a manner that would make it easy to extract and build a QuickForm. I'd need to store basic form attributes, as well as whether or not a given file is required. A quick search didn't turn anything up, but I wanted to check whether there's any code available out there that already does this before I start working on it? James. -- James Stewart Play: http://james.anthropiccollective.org Work: http://jystewart.net