Well, due to the whole Flash going to fullscreen, which is inevitable, MegaZine3 will also go into fullscreen.
So to get your Image on top of it, the easiest way would be to add it to the stage directly while in fullscreen
mode, i.e. something like this
function handleFullScreen(e:FullScreenEvent):void {
var currentImage
:DisplayObject = ...;
// the image to show in fullscreen if (e.fullScreen) {
// now in fullscreen
stage.addChild(currentImage);
// do positioning, sizing, ...
} else {
// not in fullscreen restore
this.addChild(currentImage);
}
}
This won't work like this directly, of course, but you get the idea. Just add the content to be displayed in fullscreen directly to the stage, and restore it when fullscreen is left again.