Link: https://shanabrian.com/web/library/ajaxzip3.php

<header>
  <script type="text/javascript" src="https://ajaxzip3.github.io/ajaxzip3.js" charset="utf-8"></script>
</header>

<footer>
  <script src="https://ajaxzip3.github.io/ajaxzip3.js"></script>
</footer>