title: To Load a video embed using "onclick" function to optimize a web page
body: <p>First of all, sorry for my bad English.
  I would like to upload a video embed to a web page when I click a button.
  I would like to do this because facebook embed videos are heavy and if they load them all the page there is about 3/4 seconds to load.
  I'm trying to do it with Jquery but I do not know what to use.
  At this moment I'm trying with the "load" function ...</p>
  
  <p>This is a very simple example:</p>
  
  <pre><code>&lt;button id="btn_id" class="btn btn-default" type="submit"&gt;Button&lt;/button&gt;
  
  &lt;div class="embed-responsive embed-responsive-16by9" id="ld_video"&gt;    
  &lt;div&gt;
  
  &lt;script&gt;
    btn_id.onclick = function(){
    $("#ld_vid").load(&lt;iframe src=".........);
    };
  &lt;/script&gt;
  </code></pre>