Stop all playing iframe videos on click a link javascript

Try this way,

<script language="javascript" type="text/javascript" src="https://stackoverflow.com/questions/13598423/jquery-1.8.2.js"></script>
<script language="javascript" type="text/javascript">
$(function(){
    $('.close').click(function(){      
        $('iframe').attr('src', $('iframe').attr('src'));
    });
});
</script>