Unfortunately, I'm not so sure that this is just a JavaScript problem -- in Camino 1.6.11 (1.8.1.23) the page also lays out very badly, despite (nearly) up to date JavaScript. I think this is primarily a layout issue, and that's going to be very hard to repair because the layout upgrade I'm envisioning for 9.3 at best gets to 1.8.1 also (1.7.13 plus non-Cairo patches). I'm not sure if I'm going to be able to fix this for awhile. However, does destyling the page help you at all?