Converting cancel link to a button in confirmation pages

The following code snippet will allow you to have all "Cancel" links in confirmation screens converted to buttons without touching the core.

Note: This snippet requires jQuery to be loaded.

Simply place this code snippet in a hook_form_alter:

function mymodule_form_alter($form_id, &$form) {
  // Converting all links to form buttons
  if ($form['#base'] = 'confirm_form') {
    $no = $form['actions']['cancel']['#value'];
    if (!is_null($no)) {
      // Get the text to put on the cancel button
      $value = preg_replace('/(<\/?)(\w+)([^>]*>)/e', '', $no);
      // Hide the old cancel link
      $form['actions']['cancel']['#prefix'] = '';
      $form['actions']['cancel']['#suffix'] = '';
      // Add our own button
      $form['actions']['docancel'] = array(
        '#type' => 'button',
        '#button_type' => 'reset',
        '#name' => 'cancel',
        '#submit' => 'false',
        '#value' => $value,
        '#attributes' => array(
           'onclick' => '$(this).parents("form").attr("allowSubmission", "false"); 
                window.location = $("div#'. md5($no) .'").find("a").attr("href");'),
      );
      // Prevent the form submission via our button
      $form['#attributes']['onsubmit'] = 
              'if ($(this).attr("allowSubmission") == "false") return false;';
    }
  }
}

Suggestions and enhancements are welcome.