template.php

<?php

/**
 * Prepares variables for page templates.
 *
 * @see page.tpl.php
 */
function b21_preprocess_page(&$variables) {
  $node = menu_get_object();

  // Add a class 'page-node-[nid]' to each page.
  if ($node) {
    $variables['classes'][] = 'page-node-' . $node->nid;
  }

  // Add a class 'view-name-[name]' to each page.
  $view = views_get_page_view();
  if ($view) {
    $variables['classes'][] = 'view-name-' . $view->name;
  }
}

/**
 * Prepares variables for node templates.
 *
 * @see node.tpl.php
 */
function b21_preprocess_node(&$variables) {
  if ($variables['status'] == NODE_NOT_PUBLISHED) {
    $name = node_type_get_name($variables['type']);
    $variables['title_suffix']['unpublished_indicator'] = array(
      '#type' => 'markup',
      '#markup' => '<div class="unpublished-indicator">' . t('This @type is unpublished.', array('@type' => $name)) . '</div>',
    );
  }
}