Simple info/image swap [link to files included]

programming
1

Here are all the files:
http://www.marazita.com/web/eyegixsample.zip

I’m just creating a simple art gallery and I like how this site just swaps out the images:
www.eyegix.com

For example:
This is the code that’s on the prev/next buttons.

<a href=“javascript:swap_tf(4)”>Prev</a>, <a
href=“javascript:swap_tf(2)”>Next</a>

This is a sample of the code on the core.js that’s calling another .js file
called ahah-lib.js

function swap_tf(tf) {
callAHAH('testform.php?content= '+tf, ‘testform’, ‘loading…’, ‘Error!’);
}

So technically it’s calling the address:
http://www.eyegix.com/testform.php?content=2

Which from what I can gather is simple html info from a php page called testform.php. I just need to know how to set up that php page as a list for each separate section [ex. swap_tf(2), (3), (4), etc.] with the simple html info. As you can tell I know nothing about PHP for the most part. I just wish I could access the php page on that site so I could see how it’s set up, but of course php won’t let me do it.

Thanks in advance.
-Justin-