When the user clicks div.togglethis, I need two things to happen:
Add an \"active\" class to div.togglethis
Add a \"show\" class to an outside
You should look at jQuery's addClass, removeClass, toggleClass, and hasClass methods (API references here, here, here, and here).
addClass
removeClass
toggleClass
hasClass
You would call these methods in the click handler for div.togglethis. Give this a try and post another question if you get stuck.
div.togglethis