Club Drupal

<?php

/**

 * @file

 * button.vars.php

 */

/**

 * Implements hook_preprocess_button().

 */

function bootstrap_preprocess_button(&$vars) {

  $vars['element']['#attributes']['class'][] = 'btn';

  if (isset($vars['element']['#value'])) {

    if ($class = _bootstrap_colorize_button($vars['element']['#value'])) {

      $vars['element']['#attributes']['class'][] = $class;

    }

  }

}