/**
	 * Modify publish form. Add the extra fields
	 */
	public function action_form_publish($form, $post, $context)
	{
    $props = explode(',', Options::get( 'postprops__extrafields' ));

    if (count($props) == 0)
    {
      return; /* no fields to make */
    }


    $props = array_map('trim', $props);
    $props = array_map('ucwords', $props);
    $propsNoSpace = array_map(create_function('$text', 'return preg_replace("/\s+/", "", $text);'), $props);

    $form->insert('tags', 'checkboxes', 'postprops', 'null:null', _t('Content Properties'), 'formcontrol_checkboxes');
    $form->postprops->options = array_combine($propsNoSpace, $props);
    $form->postprops->value = $post->info->cssalts;
	}
	
	/**
	 * Save our data to the database
	 */
	public function action_publish_post( $post, $form )
	{
		$post->info->postprops = $form->postprops->value;
	}