gistfile1.js

   function get_youtube_metadata (id) {
        $.getJSON('https://gdata.youtube.com/feeds/api/videos/'+ id +'?v=2&alt=json', function (data){
            return  {
                name: data.entry.title.$t, 
                thumb: data.entry.media$group.media$thumbnail[0].url
            }
        })
    }