Detection of the end of video playback in a web page

Question

Is there a widely supported video playback technology for web pages that provides an event / hook that can be captured from Javascript when playback reaches the end of the stream?

My goal is to provide a web page that plays the video, and then asks the user a question about the video after the playback ends. The question will be hidden or disabled until they watch the video.

Answer 1

html5 video has a built-in attribute

video.onended = function(e) {
  // do stuff
}

you can go back to jw player which has api

Answer 2

, JWPlayer Javascript-, .

: http://developer.longtailvideo.com/trac/wiki/Player5Events