'mailto'); return $options; } function options_form(&$form, &$form_state) { parent::options_form($form, $form_state); $form['link_to_user'] = array( '#title' => t('Link this field'), '#type' => 'radios', '#options' => array( 0 => t('No link'), 'user' => t('To the user'), 'mailto' => t("With a mailto:"), ), '#default_value' => $this->options['link_to_user'], ); } function render_link($data, $values) { parent::render_link($data, $values); if ($this->options['link_to_user'] == 'mailto') { $this->options['alter']['make_link'] = TRUE; $this->options['alter']['path'] = "mailto:" . $data; } return $data; } }