Youtube video embed shortcode for jer

/* THEME USAGE:
    [video id="dIDcs0p19OQ" width="400" height="300" class="sampleclass"]
*/

add_shortcode('video', 'video_func');
function video_func($atts, $content) {
     extract(shortcode_atts(array(
        'id' => NULL,
        'width' => '400',
        'height' => '300',
        'class' => 'video-frame',
     ), $atts));

     if(!$id) return "<!-- No [video] id found -->";
     $output = "<div class='vidframe $class'><iframe width='$width' height='$height' src='http://www.youtube.com/embed/$id?rel=0' frameborder='0' allowfullscreen></iframe><div class='vidframe-caption'>$content</div></div>";
     return $output;
}