Are there any HTML5/CSS experts out there? Can anyone help me understand how to accomplish a tab thing so clients can more easily toggle between my two web stores (retail and wholesale)? Clients are constantly getting confused about which site they're on (or supposed to be on) and I found this website with a great example, with the tabs at the top nav (even though they are not a 3DCart site):

Oh, and this is my 3DCart retail site:

I used to be pretty good at HTML but I'm lost as far as the new reflexive stuff is concerned. :-/