[Moo] Custom event on a window

[eskimoblood]

I've add a custom event on window like: window.addEvent('myEvent',
function(){}). From an iframe I try do fire this event like this:
parent.fireEvent('myEvent'). This works well in Firefox but trying
this ie8, the event is never been fired. Also when I test window.
$events after attaching it has myEvent, but in the iframe parent.
$events only has domready.