http://camacho.tv/index.php

When you click the picture banner on top of the page, it opens a new
picture. I really like this and I wish I could have it on my site.
I'm not really into programming and web development, but nonetheless, I'm
hoping that I can accomplish this with some sort of tool maybe?

Can anyone give me a tip on how to do this? Or do you know other sites where
you can see the same thing?

many thanks!
Kris