Embed a form into HTML view with pre-filled parameters?

Embed a form into HTML view with pre-filled parameters?


I'm building an HTML view that allows users to select an Account, then shows a list of current projects assigned to that Account, as well as a form that lets them request a new project. 

Ideally I'd like to pre-fill the New Project form with the specified account (passed into the html view as input.account), but can't figure out whether or not it's possible.  I know about functionality-based URLs but appending &Account=input.account doesn't make any difference to the form.  Is this possible and if so, how do I do it?

Thanks!