title: bootstrap.js Accordion Collapse / Expand
body: <p>I'm trying to create previous / next buttons on each accordion body.</p>
  
  <p>I can't figure out a way to collapse / expand a certain section.  I tried removing the class <code>in</code> from the <code>accordion-body</code> but that does not seem to collapse.</p>
  
  <pre><code>        $(".accordion-body").each(function(){
              if($(this).hasClass("in")) {
                  $(this).removeClass("in");
              }
          });
  </code></pre>
  
  <p>Also whenever or whatever I use the <code>.collapse</code> method on, I get a javascript error saying that object has no method collapse.</p>