Timed event

[Migerus]

I am trying to add a timer to window, which will close it in 3-5 seconds. The idea is to make loot window press ok automatically in a few seconds, and especially autoclose the stupid window which asks for confirmation for no-trade items (I got really tired from confirming that I wanna loot something when I am not even groupped so there is nobody else who may need it)

I think it's pretty easy but cant find out how to do that.
To close window right away I probably can use on show event, but how to close window after few seconds ?