cookie for remembering homepage image or not?
i've got a site where i want to randomize the branding image on the home page. not each time the user visits, but once per day
at the moment i'm thinking of using jquery to store a cookie when the user visits, which will last until midnight. then, if the user visits again that same day, just grab the image from the cache instead of sending them another random one
(i was thinking of maybe embedding a php script that automatically finds out which image should be shown on that day - & if that image is already in the cache just use that)