[Radiant] AJAX Interaction

[rainer griess]

Hi all,

I would really appreaciate it to get some first clues for how to get  
some simple Ajax interaction into my running radiant app. This is what  
I am trying:

I have a page with X small images attached to it in radiantcms.
The first of the images should be displayed immediately when a user  
loads the page.
Beneath the image I want to place X buttons.
The user should be able click on each of these buttons to see the  
according image above it, loaded with Ajax and a nice looking  
transition.

I have first experiences with Ajax, but not that much. But the first  
question I am asking myself is, how to get all images attached to a  
page into a JavaScript variable.

Can you please help me a bit?

Thanks,
rainer