Looking for some advice on AS3

I am looking for some advice on what method I should complete part of a website with.
This is my first site that I am building on the AS 3 platform and just want to hear some developers advice.
I have a simple photo slide show, that have about 15 photos in it, they fade it and they fade out. I wanted to know which is the best way to go about handling this operation. Do I set it up as an external swf and have a external .as class handle all of the code, do I set it up as a XML file and keep track of things that way. Is there a way to do this that maybe I don’t even know about? This is a section that will not need to be updated that often, maybe once every 6 months. I am just looking to do this in the most efficient way.

Thanks for your advice!
Hope your having a great holiday weekend!!!