JAlbum.

freshmeat.net: "JAlbum makes Web albums of your digital images. No extra software is needed to view your galleries other than a Web browser. Unlike 'server side' album scripts, a JAlbum gallery can be served from a plain Web server without scripting support. JAlbum's built in Web server allows you to share your albums straight from JAlbum. You can also share your albums on a CD."