How to use WP_Query with have_posts()?

How to use WP_Query with have_posts()?

global $wp_query;

$original_query = $wp_query;
$wp_query = null;
$wp_query = new WP_Query( $args );
if ( have_posts() ) :
    while ( have_posts() ) : the_post();
        the_title();
        the_excerpt();
    endwhile;
else:
    echo 'no posts found';
endif;
$wp_query = null;
$wp_query = $original_query;
wp_reset_postdata();

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How to stop and pause youtue video in jquery?

How to stop and pause youtue video in jquery?

                               Html

<iframe width="560" height="315" src="https://www.youtube.com/embed/mKt-MDwtVB4" frameborder="0" allowfullscreen></iframe>

  <button class="fancybox-close">Stop video please</button>

<p>

http://stackoverflow.com/questions/8931798/hide-show-in-javascript-stop-playing-youtube-iframe-video

http://stackoverflow.com/questions/9482180/using-javascript-to-add-class-to-youtube-iframe-element

http://stackoverflow.com/questions/4249809/reload-an-iframe-with-jquery

</p>

                                   CSS

body {width:60%;margin:3em auto;}

footer {border-top:1px solid #ccc;padding:1em 0;}

jQuery

    // Finds all iframes from youtubes and gives them a unique class

    jQuery('iframe[src*="https://www.youtube.com/embed/"]').addClass("youtube-iframe");

    jQuery(".fancybox-close").click(function() {

      // changes the iframe src to prevent playback or stop the video playback in our case

      $('.youtube-iframe').each(function(index) {

        $(this).attr('src', $(this).attr('src'));

        return false;

      });

      

//click function

    });