Normally, I would make an argument that the amount of use without Javascript is very low. However, given the ecommerce nature, I can understand the desire to re

Normally, I would make an argument that the amount of use without Javascript is very low. However, given the ecommerce nature, I can understand the desire to reduce Javascript dependencies. You might give <http://reference.sitepoint.com/css/pseudoclass-focus&#62 http://reference.sitepoint.com/css/pseudoclass-focus> a try. It's CSS2 and appears to work on IE>=8 and all other major browsers. I could see a scenario where :focus and Javascript could be the default behavior, falling back to just :focus, then falling back again to just two buttons, could work. Good luck!