Stop embedded youtube iframe?

Question

I'm using YouTube iframe to embed videos on my site.

<iframe width="100%" height="443" class="yvideo" id="p1QgNF6J1h0"
              src="http://www.youtube.com/embed/p1QgNF6J1h0?rel=0&controls=0&hd=1&showinfo=0&enablejsapi=1"
              frameborder="0" allowfullscreen>
</iframe>

And i have multiplie videos on the same page.

I want to stop all of them or one of them in a click of a button using javascript or so.

Is it possible?

UPDATE:

I tried what Talvi Watia said and used:

$('#myStopClickButton').click(function(){
  $('.yvideo').each(function(){
    $(this).stopVideo();
  });
});

I'm getting:

Uncaught TypeError: Object [object Object] has no method 'stopVideo' 

Answer 1

Unfortunately these API's evolve very fast. As of May 2015, the proposed solutions don't work anymore, as the player object has no stopVideo method.

A reliable solution is to be found in this page (1) and it works with an:

<iframe id="youtube_player" class="yt_player_iframe" width="640" height="360" src="http://www.youtube.com/embed/aHUBlv5_K8Y?enablejsapi=1&version=3&playerapiid=ytplayer"  allowfullscreen="true" allowscriptaccess="always" frameborder="0"></iframe>

and the following JS/jQuery code:

$('.yt_player_iframe').each(function(){
  this.contentWindow.postMessage('{"event":"command","func":"stopVideo","args":""}', '*')
});