Validate the site-wide contact page form submission.

File

drupal-6.x/modules/contact/contact.pages.inc, line 106

User page callbacks for the contact module.

Code

function contact_mail_page_validate($form, &$form_state) {
  if (!$form_state['values']['cid']) {
    form_set_error('cid', t('You must select a valid category.'));
  }
  if (!valid_email_address($form_state['values']['mail'])) {
    form_set_error('mail', t('You must enter a valid e-mail address.'));
  }
}