title: Is it possible to create a limited registration signup form using Google Docs Forms?
body: <p>I would like to create an event signup form using Google Docs. The user is able to select which session they would like to attend, but I need to somehow limit the number of people that can register for each session.</p>
  
  <p>I can not find a way to do this using the standard form creator GUI, however I think it might be possible to do using Google Apps Script. I would need to be able to customize the form that is loaded to remove sessions that are already full based on a query to the underlying spreadsheet.</p>
  
  <p>Is this possible, or should I look into other Web Form surveys?</p>