How to create a collapsible Webform form? I'd like to make a webform collapsed by default, and have a Sentence/paragraph at top of the page with a checkbox next to it. Upon ticking the checkbox I would like the webform to be displayed.

Similar to Form 2 - Adding Fieldsets on this site: http://dev.sencha.com/deploy/ext-4.0.0/examples/form/dynamic.html

How would I go about doing this?
Okay, the easy way would be to go through FORMS API http://drupal.org/node/37775

You may also look into MultiStep module once you are done with the FORM API overview.

Below are some links that you can follow:-


http://www.youtube.com/watch?v=EgGhUN2zKw4
http://randyfay.com/states
Search youtube/drupalize.me/buildamodule.com for more Form API tutorials.
http://tedbow.com/content/drupal/webform-conditional-demo-form


Please go through Form Api first.