function jquery_update_jquery_path() {
  $jquery_file = preg_match('/(admin|edit|add)/', request_uri()) ?
  array('none' => JQUERY_ORIGINAL_PATH.'/'.'jquery.js', 'min' => JQUERY_ORIGINAL_PATH.'/'.'jquery.min.js'):
  array('none' => JQUERY_UPDATE_REPLACE_PATH.'/'.'jquery.js', 'min' => JQUERY_UPDATE_REPLACE_PATH.'/'.'jquery.min.js');
 
  return $jquery_file[variable_get('jquery_update_compression_type', 'min')];

}

/**
 * Implementation of moduleName_preprocess_hook().
 *
 * Replace Drupal core's jquery.js with the new one from jQuery Update module.
 */
function jquery_update_preprocess_page(&$variables) {
  // Only do this for pages that have JavaScript on them.
  if (!empty($variables['scripts'])) {

    // Perform the logic if either jQuery Update's jquery.js is newer than core's.
    if (variable_get('jquery_update_replace', TRUE)) {
      // Get an array of all the JavaScript files loaded by Drupal on this page.
      $scripts = drupal_add_js();

      // Replace jquery.js first.
      $new_jquery = array(jquery_update_jquery_path() => $scripts['core']['misc/jquery.js']);
      $scripts['core'] = array_merge($new_jquery, $scripts['core']);
          if (!preg_match('/(admin|edit|add)/', request_uri())):
                unset($scripts['core']['misc/jquery.js']);
          endif;

      // Loop through each of the required replacements.
      foreach (jquery_update_get_replacements() as $type => $replacements) {
        foreach ($replacements as $find => $replace) {
          // If the file to replace is loaded on this page...
          if (isset($scripts[$type][$find])) {
            // Create a new entry for the replacement file, and unset the original one.
            $replace = JQUERY_UPDATE_REPLACE_PATH .'/'. $replace;
            $scripts[$type][$replace] = $scripts[$type][$find];
            unset($scripts[$type][$find]);
          }
        }
      }

      $variables['scripts'] = drupal_get_js('header', $scripts);
    }
  }
}