Add your animated gifs to the theme image directory
Place you gifs in divs to position with css as needed.
<div id="easter"><img src="<?php bloginfo("template_url");?>/images/easter.gif" /></div>
CSS
#easter{position: absolute; margin: 250px 0 0 250px; z-index: 0;}
Massage the margin to position as needed.
This assumes you don’t use a graphic for a background attached to the body and you add your gifs div in an existing wrapper. If one doesn’t exist you will have to add it.
Curious? Do you have an example of the animated gif you will be using?
Thanks very much for prompt reply.
I’m still looking for animated gif of falling leaves. I’ll post when I locate an appropriate one.