Пауза видео Youtube при нажатии на кнопку

  <script type="text/javascript">var el = document.getElementsByTagName('iframe');
var elattr = el[0].getAttribute('src');
 
if (window.innerWidth < 800) {
  el[0].setAttribute('src', elattr.split('=')[0] + '=' + '0' + '&autohide=1&rel=0');
}</script>

 <script>
      // 2. This code loads the IFrame Player API code asynchronously.
      var tag = document.createElement('script');
 
      tag.src = "https://www.youtube.com/iframe_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
 
      // 3. This function creates an <iframe> (and YouTube player)
      //    after the API code downloads.
      var player;
      function onYouTubeIframeAPIReady() {
        player = new YT.Player('iframe', {
          height: '360',
          width: '640',
          videoId: '****',
          events: {
            'onReady': onPlayerReady,
            'onStateChange': onPlayerStateChange
          }
        });
      }
 
      // 4. The API will call this function when the video player is ready.
      function onPlayerReady(event) {
        event.target.playVideo();
      }
 
      // 5. The API calls this function when the player's state changes.
      //    The function indicates that when playing a video (state=1),
      //    the player should play for six seconds and then stop.
      var done = false;
      function onPlayerStateChange(event) {
        if (event.data == YT.PlayerState.PLAYING && !done) {
          setTimeout(stopVideo, 6000);
          done = true;
        }
      }
      function stopVideo() {
        player.stopVideo();
      }
    </script>

function stopVideo() {
  player.stopVideo();
}