I've come across a neat bit of, what seems to me, site/jquery/css trickery by the site pixmac.com where their favorites tab (on the bottom right of the page) will pop up when clicked, and the scroll bar is shortened, and the width of the tab when it pops up is 100% the width of the window. the scrollbar itself sits on top of the tab that pops up.
i've tried it on safari 4 and firefox 3.x. and i can't figure out how its done and under which versions of css + html this effect'll work. so to summarize, when the favorites tab on the lower right is activated, these changes occur: 1) a "tab" pops up that takes up 100% of the width of the window 2) the vertical scrollbar for the page shortens, with the scrollbar bottoming out on top of the tab if this is the wrong place to be asking this question, please direct me to a good place to ask. thanks in advance!