title: Slideout from left push menu navigation
body: <p>So, I want to use the menu with the button 'Show/Hide left push menu' which is working, but for some reason when I try and remove the other buttons, it stops working? </p>
  
  <p>I haven't included CSS as I don't think that would be the issue but I can include a link to the CSS file if needed.</p>
  
  <p><strong>HTML:</strong></p>
  
  <pre><code>&lt;body class="cbp-spmenu-push"&gt;
      &lt;nav class="cbp-spmenu cbp-spmenu-vertical cbp-spmenu-left" id="cbp-spmenu-s1"&gt;
              &lt;h3&gt;Menu&lt;/h3&gt;
      &lt;a href="#"&gt;Celery seakale&lt;/a&gt;
      &lt;a href="#"&gt;Dulse daikon&lt;/a&gt;
      &lt;a href="#"&gt;Zucchini garlic&lt;/a&gt;
  
          &lt;a
          href="#"&gt;Catsear azuki bean&lt;/a&gt; &lt;a href="#"&gt;Dandelion bunya&lt;/a&gt;
      &lt;a href="#"&gt;Rutabaga&lt;/a&gt;
  
      &lt;/nav&gt;
      &lt;button id="showLeft"&gt;Show/Hide Left Slide Menu&lt;/button&gt;
      &lt;button id="showRight"&gt;Show/Hide Right Slide Menu&lt;/button&gt;
      &lt;button id="showTop"&gt;Show/Hide Top Slide Menu&lt;/button&gt;
      &lt;button id="showBottom"&gt;Show/Hide Bottom Slide Menu&lt;/button&gt;
      &lt;section class="buttonset"&gt;
              &lt;h2&gt;Push Menus&lt;/h2&gt;
  
          &lt;button id="showLeftPush"&gt;Show/Hide Left Push Menu&lt;/button&gt;
          &lt;button id="showRightPush"&gt;Show/Hide Right Push Menu&lt;/button&gt;
      &lt;/section&gt;
  &lt;/body&gt; 
  </code></pre>
  
  <p><strong>JS:</strong></p>
  
  <pre><code>var menuLeft = document.getElementById('cbp-spmenu-s1'),
      showLeftPush = document.getElementById('showLeftPush'),
      body = document.body;
  
  showLeft.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(menuLeft, 'cbp-spmenu-open');
      disableOther('showLeft');
  };
  showRight.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(menuRight, 'cbp-spmenu-open');
      disableOther('showRight');
  };
  showTop.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(menuTop, 'cbp-spmenu-open');
      disableOther('showTop');
  };
  showBottom.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(menuBottom, 'cbp-spmenu-open');
      disableOther('showBottom');
  };
  showLeftPush.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(body, 'cbp-spmenu-push-toright');
      classie.toggle(menuLeft, 'cbp-spmenu-open');
      disableOther('showLeftPush');
  };
  showRightPush.onclick = function () {
      classie.toggle(this, 'active');
      classie.toggle(body, 'cbp-spmenu-push-toleft');
      classie.toggle(menuRight, 'cbp-spmenu-open');
      disableOther('showRightPush');
  };
  </code></pre>