function setMovie(video_id)
{
    var player = "<object width='640' height='385'>" +
            "<param name='movie' value='http://www.youtube.com/v/" + video_id + "&hl=en_US&fs=1&autoplay=1' />" +
            "<param name='allowFullScreen' value='true' />" +
            "<param name='allowscriptaccess' value='always' />" +
            "<embed src='http://www.youtube.com/v/" + video_id + "&hl=en_US&fs=1&autoplay=1' " +
            "    type='application/x-shockwave-flash' " +
            "    allowscriptaccess='always' " +
            "    allowfullscreen='true' " +
            "    width='640' " +
            "    height='385'>" +
            "</embed>" +
        "</object>";
        
    var params = {
        'width': 640,
        'height': 385
    }

    iBox.show(player, '', params);
}