Event.observe(window, 'load', function() {
	// create an array to store our overlays
	var overlays = [];

	// image gallery overlay
	var images = $$('#main a.overlaythumb');
	if (images.length>0) overlays.push(new AC.ImageOverlay(images));

	// movie overlay
	var movies = $$('.watchvideo');
	if (movies.length>0) overlays.push(new AC.MovieOverlay(movies));
	
	// vr overlay
	AC.VrOverlay.prototype.overlayShadowSrc = 'http://images.apple.com/global/elements/overlay/overlay_shadow_vr000_20080109.png';
	var qtvrs = $$('.overlayvrthumb');
	if (qtvrs.length>0) overlays.push(new AC.VrOverlay(qtvrs));

	// movie thumbnail overlays
	var trigger = $$('#main .tours');
	for (var i=0; i<trigger.length; i++) {
		var overlay = new MovieThumbnailOverlay([trigger[i]], { moviewidth:320, movieheight:400 });
		overlay.id = i;
		overlays.push(overlay);
	}

	// close the others when we open one
	AC.OverlayInit(overlays);

}, false);