<?php
function ivorypearl_preprocess_html(&$variables, $hook) {
  // Classes for body element. Allows advanced theming based on context
  // (home page, node of certain type, etc.)
  if (!$variables['is_front']) {
    // Add unique class for each page.
    $path = drupal_get_path_alias($_GET['q']);
    // Add unique class for each website section.
    list($section, ) = explode('/', $path, 2);
    if (arg(0) == 'node') {
      if (arg(1) == 'add') {
        $section = 'node-add';
      }
      elseif (is_numeric(arg(1)) && (arg(2) == 'edit' || arg(2) == 'delete')) {
        $section = 'node-' . arg(2);
      }
    }
    $variables['classes_array'][] = drupal_html_class('section-' . $section);
  }
  if (theme_get_setting('ivorypearl_wireframes')) {
    $variables['classes_array'][] = 'with-wireframes'; // Optionally add the wireframes style.
  }
}