Как сделать аналогичное всплывающее меню при наведении курсора мыши?

Самое интересное, что html такой:


<h3>Introduction</h3>
<p>When you run a popular website that uses PHP and MySQL you will most likely notice that your website becomes slow when your website is at its busiest. If you've really optimized your PHP script and MySQL server, you'll probably be able squeeze some additional performance out of your website, but there comes a time when it's just too much to handle. That's where caching comes in.</p>
<p>If you cache frequently visited data, and this usually includes your homepage, you can drasticly reduce your website's response time. By caching data to the file system, you completely cut MySQL out of the picture, and that is usually the biggest bottleneck. Another added benefit is that it will decrease the load on your MySQL server, making it faster for data that hasn't been cached yet.</p>
<p>In this tutorial, I'm going to show you how to create a bare-bones caching system. Our system will be able to cache a complete page, by using the output buffer to save its HTML.</p>


Никаких ссылок и т.п. для MySQL в коде нет.

Вот линк http://www.phpit.net/article/build-caching-system-php/

А поделитесь пожалуйста примерчиком. :)
Хотя бы будет от чего отталкиваться.