title: How to change preview image at onComplete event?
body: <p>I'm using the following source code to display a video file using jwpalyer.</p>
  
  <pre><code>  jwplayer('mediaplayer').setup({
      'id': 'mediaplayer',
      'width': '649',
      'image': "&lt;?=$siteURL?&gt;/views/index/preview.jpg",       
      'height': '300',
      'file': '&lt;?=siteURL?&gt;/views/index/video.mp4',
  
      'flashplayer': '&lt;?=siteURL?&gt;/scripts/jwplayer/player.swf',
      'modes': [
           {type: 'flash', src: '&lt;?=siteURL?&gt;/scripts/jwplayer/player.swf?autostart=true'},
          {
              type: 'html5'
          },
  
          {type: 'download'}
      ],
      'events': {
          onComplete: function(e){
          }
      }
    });
  </code></pre>
  
  <p>I would like to change 'image' at the end of the video. I added 'onComplete' event, but I have no idea how to change 'image' property only.</p>
  
  <p>I have read jwplayer api and googled, had no luck..</p>