title: changing next button on qualtrics
body: <p>I have two pages with answers on qualtrics and I need to select the first page, then press the "next" button and see the second page. The first page has the "next" button, the second page does not.
  What I succeed for now was only to not display the next button:</p>
  
  <pre><code>Qualtrics.SurveyEngine.addOnload(function() {
    function hideEl(element) {
      if($(element)) $(element).hide();
    }   
    hideEl.defer('NextButton');
  });
  </code></pre>