This problem is the result of IE7 not displaying animated GIF's that are hidden.
for reference: http://crunchlife.com/articles/2008/06/11/ie7s-inanimate-gif
These 2 solutions involve the use of the setTimeout function and innerHTML. These examples use absolute URL's to the images. Since I'm using JSF, I would like to use relative URL's. Is there a proper way to do this in JSF?