Drupal comment approval messages with Akamai

page.tpl.php

<?php
// When Drupal is cached by Akamai it happens sometimes that $messages ain't displayed when the page is done.
// Instead the $message get rendered only after the user visits another page, on that another page.
// So I disabled Drupal messages for anonymous users completely (theme_status_messages)
// and built the following workaround for comment approval messages.
<script id="message-queued" type="text/template">
  // Inside an inline script I parked the markup plus text that normally is displayed.
  // By setting type=text/template it is ignored by browsers but will be available for later display.
  <div id="messages">
    <div class="section clearfix">
      <div class="messages status">
        <h2 class="element-invisible">Status message</h2>
        <?php print t('Your comment has been queued for review by site administrators and will be published after approval.'); ?>
      </div>
    </div>
  </div>
</script>
<script type="text/javascript">
  // Since Drupal always appends #comment-1234 to the URL when a comments is submitted
  // I let the following function check if the URL has a certain substring
  // and let it display the markup accordingly.
  // This script doesn't have to be in the template. Place it where you want.
  jQuery( document ).ready(function($) {
    if (window.location.hash.substring(1,8) == 'comment') {
      $('#messages-placeholder').before($('#message-queued').html());
    }
  });
</script>

template.php

<?php
// copy pasted from Drupal core, only added two lines each with a comment above
function YOURTHEME_status_messages($vars) {
  $display = $vars ['display'];
  $output = '';
  $status_heading = array(
    'status' => t('Status message'),
    'error' => t('Error message'),
    'warning' => t('Warning message'),
  );
  foreach (drupal_get_messages($display) as $type => $messages) {
    // skip all messages for anonymous users
    if (!user_is_logged_in() && ($type == "error" || $type == "warning" || $type == "status")) { continue; }
    // skip all messages for users who don't have the 'administer nodes' permission
    else if (!user_access('administer nodes') && ($type == "error" || $type == "warning" || $type == "status")) { continue; }
    
    $output .= "<div class=\"messages $type\">\n";
    if (!empty($status_heading [$type])) {
      $output .= '<h2 class="element-invisible">' . $status_heading [$type] . "</h2>\n";
    }
    if (count($messages) > 1) {
      $output .= " <ul>\n";
      foreach ($messages as $message) {
        $output .= '  <li>' . $message . "</li>\n";
      }
      $output .= " </ul>\n";
    }
    else {
      $output .= reset($messages);
    }
    $output .= "</div>\n";
  }
  return $output;
}