LibreOffice Conference Registration Form

The LibreOffice conference site is running on Plone 4.2.1 and uses an add-on-product, that I created for the conference management. This add-on contains also a form for the registration for the LibreOffice conference in October 2012. I made this form with different fields where the user had to fill in his data. Some of these fields are required, e.g. the first name. Because people sometimes forget to fill in data in the required fields there are some build-in validator. I added two custom ones for the email-address and for the acception of the privacy policy. I hope this helps the users of the form and the organizers of the LibreOffice conference to make the registration process a bit more smooth.