If you take a look at the dev site here: www.tmwlsh.co.uk/wlsh you will see that there are four boxes. Once you click the down arrow in each box, the arrow changes to an up arrow. The changing of the arrow is all done in jQuery and the 'up arrow div' essentially does not exist in the html.
Once the arrow has changed to down, i want the user to be able to click the up arrow to re-hide the div.. its a little confusing, but if you take a look at the link im sure you will get the gist. www.tmwlsh.co.uk/wlsh