ass="nav-section">
        <div class="nav-section-header">
          <a href="../../../training/gestures/index.html"
             description=
             "How to write apps that allow users to interact with the touch screen via touch gestures."
            >Using Touch Gestures</a>
        </div>
        <ul>
          <li><a href="../../../training/gestures/detector.html">
            Detecting Common Gestures
          </a>
          </li>
          <li><a href="../../../training/gestures/movement.html