Detecting navigation away from a screen

To play mp3 files in my web application, I've a simple audio player with play/pause buttons, progress bar, etc. Just the way VideoPlayer stops playing video when user of the application switches to some other screen, I would like my audio player to stop playing audio when the user switches to some other screen. What event can I use to detect that the audio player (s:VGroup) isn't 'visible'?
Although this question is framed around stopping an audio player, the same applies to a situation where user is navigating away from a form without saving modified data.
Thanks,
Dilip

Hey Dilip,
You need to include Javascript here. What you need to do is put an event on window.blur and on window.blur call a code of Flex application to make the audio player mute.
I think that make sense to you still if you have any question let me know.
Thanks & Regards
Ankur Arora
Project Leader(Flash and Flex)
http://flashdeveloper.blogspot.com
http://www.ankur-arora.com

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Detecting navigation away from a screen

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