- Give the disconnected "el" jQuery object (the div created with the html
  response) instead of "this" (the request object) to the noform and redirect
  callbacks. This fixes the noformerrorshow callback from popupforms.js in the
  Products.CMFPlone package.
- Give the pbo object as second parameter for noform callback. You can access
  everything from it, for example the overlay trigger pbo.source.
- Now execute inline scripts in ajax overlay.