Resize event doesn't get triggered

Hello all,

I’m working on a project that uses a resize event and the Flash is full-browser (100% height and width). This means of course that every time the Flash stage size will change the resize function will be triggered. This works all fine.
But the problem is that if you open a new tab in a browser besides the Flash tab and you go to another website and you resize the browser itself than the rezise event wasn’t triggered when you return to the Flash tab.
It only triggeres when you resize the browser with THAT tab open.

So is there a normal way (without having an enterFrame loop) to still trigger the event if you return to the Flash tab?

I thought maybe a timer is best way. It should trigger the resize every 3 or 5 seconds or so.

Tell me what you think,
Harm