Textbox that closes again

Hello all

I'm pretty new to Autoit, so this might be a newb question, i have searched google, and the forum here, and can't really find the awnser I'm looking for, or I'm just not "skilled" enough to see it
so i hope some of your guys, could help me out

so the thing is, I'm building up a script, and this little part of it has been troubling, i want a textbox, someting like the msgbox, or anything really, this box, has to pop up like a normal messagebox do, 

but it has to automatically close again after a couple of secs,
This is what i got so far, so if you can use anyting from it, you are welcome