Hi, I've been given www.afshoot.com, and there's one function that I want to add but have no idea how.

If you click Portfolio you get to see some small photos. When you click a photo it displays as the background of the page. All I want to happen is that once the preview image has been clicked, they all go away again so they don't sit in front of the background picture (i.e. the menu collapses).

Can anyone help?