Pop Up random and only once.
Easiest way is to remove that item from the array and it will not pop up or keep track of the windows that opened.
check if window is open...
http://www10.brinkster.com/A1ien51/Scripts/PopUpCheck.htm Have a counter that tracks the number of urls opened and if it gets to the max number then clear the timeout.
Sad thing is all this work you are doing and all the pop up blockers will block this code...
Eric