New background image on "site" visit (not page refresh)

New background image on "site" visit (not page refresh)

Hi all,

There are plenty of great plugins and scripts out there that display a new background image (or standard image) on page refresh. That's all fine and good. However, I'm wondering if it's possible to have a new background image displayed when the user leaves the site and returns. So, I come to the site, navigate through and the background image stays the same for all pages. However, if I close the site in my browser and return, a new background image displays. I haven't been able to find anything yet and am stuck on writing this myself.

Best,
Steve Case