Detect if USTREAM is broadcasting (on-air)

What is the best way to detect if开发者_开发技巧 a broadcast is live coming from USTREAM? I've got a church site that uses USTREAM and they would like to have the embeded player show up when the broadcast is live and disappear when the broadcast is off-air.

Is this possible with ColdFusion or some kind of javascript/ajax?

http://developer.ustream.tv/docs

http://api.ustream.tv/html/channel/all/search/title:eq:yourChannelName?key=yourDevkey

found all the way at the bottom of the page. Thanks a lot ustream having such an easy API to be able to understand. #not