popup.html

<!doctype html>
<html>
  <head>
    <title>Tabulator Popup</title>
    <style>
    body {
      overflow: hidden;
      margin: 0px;
      padding: 0px;
      background: white;
    }

    div:first-child {
      margin-top: 0px;
    }

    div.button {
      cursor: pointer;
      text-align: center;
      padding: 1px 3px;
      font-family: sans-serif;
      font-size: 0.8em;
      width: 100px;
      margin-top: 1px;
      background: #cccccc;
      border: 1px solid black;
    }

    div.button:hover {
      background: #aaaaaa;
    }

    </style>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
    <script src="popup.js"></script>
  </head>
  <body>
    <div id="disable" class="button" style="display: none">Disable</div>
    <div id="enable" class="button" style="display: none">Enable</div>
  </body>
</body>
</html>