I forgot how to do this.. I tried looking in my old topics and posts before asking and I had no luck..
there was a way via javascript where my main logo would change to a different picture upon refresh... is that still possible?

 Helpful topic's
https://help.forumotion.com/t138806-randomize-your-forum-banner
https://help.forumotion.com/t155782-random-banners?highlight=random

or do a full search on the main forum
use Key words like
Banner,
Random,
Refresh,

this will help you find your thread you are looking for.

Also please always take a look in the Tricks and tips part of the forum before making a thread as this is one that can be found in that part of the forum.

Kind regards.

APE