posting gifs

Does anybody know how to post animated gifs in the galleries ? I have a few sketches that are a full scene and I have seen some people have uploaded the gifs that play out a whole scene. ANy help please!

http://chriscelsite.rubberslug.com/gallery/inv_info.asp?ItemID=133836


Gifs like this guy does.

I know.
I also saw some people have uploaded the gifs.
So, I also challenged it.
RS say, "You can upload gif" on the manage page.
However, my gif file was refused.
Size was proper.
I do not know the reason which cannot be uploaded.
Maybe, I feel that we can't upload by the manage of RS now.
However, We will be able to upload gif on Description by html code.
I use it. *compromise*

http://sarangallery.rubberslug.com/gallery/inv_info.asp?ItemID=366899

And, If you find that how to upload gif by manage of RS, Please teach me too.:D

Thanks for the help, I tried it out and posting the html works great for me in the description section, now the only problem is I can't get the main image to load to create the gallery section! I have tried safari and firefox, so I guess I'll wait till tomorrow and see if it works then.,

I'm not entirely sure, but uploading gifs may be one of the features we lost when the site was upgraded a while back. So, gifs that are already up will stay, but you may not be able to upload new ones.