iBook Widget Event

<script type="text/javascript" src="AppleClasses/AppleWidget.js"> </script>

<script type="text/javascript">

    widget.pauseAudioVisual = function() {

// Go to the Quiet scene when closing a widget

    };

    widget.didEnterWidgetMode = function() {

    // When reopening the widget, go back to the first scene

    

    };

</script>

Ref:
http://hype.desk.com/customer/portal/articles/621905-advanced-ibooks-author-html-widgets-widget-events-and-storing-sending-data