Event.onDOMReady(function() {

    var performanceBackground = function(evt) {
        var overlay = evt.event_data.data.sender;
    	var incoming = evt.event_data.data.incomingView;

    	if (incoming) {
    		if (incoming.id == 'integrated-performance' || incoming.id == 'discrete-performance') {
    			overlay.setOverlayShadowImageSrc('http://images.apple.com/ca/fr/macbookpro/images/overlay-performancebg20081014.png');
    		}
    	}
    }

    Event.Listener.listenForEvent(AC.ViewMaster, 'ViewMasterWillShowNotification', false, performanceBackground);
	
	var trackerDelegate = {
		trackingNameForSection: function(tracker, name, section) {
			tracker.count++;
			if (name.match('performance')) return false;
			if (name.match('Gallery')) return false;
			if (tracker.count > 1) return name;
			return false;
		}
	}
	var tracker = new AC.ViewMaster.Tracker('click');
	tracker.setDelegate(trackerDelegate);
});