stylesheet switcher

working on the finishing touches for the Umlauf site, stuck at a weird spot. the whole time we'd planned on making dual sites, a full-featured standard site and a high-visibility, low-script accessible version. what we didn't do, however, was add the actual switch logic to the design until now. angie doesn't like it anywhere, I'm fine with leaving it somewhere 'round these parts.

thoughts? dev link: http://umlauf.clarklab.net