Oh great! It works now! Now when I press the key while in Eastmarch, it shows Image1, when I press the key while in Stonefalls it shows Image2. Though, I think I'm not done yet, as if I travel from Stonefalls to Eastmarch and press the key again, it shows still Image2, when it should show Image1. I imagine this will be some kind of update event, right? Works perfectly if after travelling I make reloadui.
I think I should use EVENT_ZONE_UPDATE, but I'm not sure how to make this :S
Any ideas?
Many thanks for the help, really