Alright, I'm working on my own signature rotator. At the moment the image only updates when the page is refreshed, which I'm fine with for now.
However, is it possible to force the script to grab a new image after X minutes if the page hasn't already been reloaded? I'd assume no, but figured it was worth asking.
Example (grab new image after 5 minutes)
Person A reloads the page every 3 minutes. Since 3 is less then 5, this wouldn't be called.
Person B reloads the page every 9 minutes. Script waits 5 minutes, updates image to new image, then it continues normally when the page is reloaded.