class="fas fa-fw fa-upload"></i>
          <span>Upload</span></a>
      </li>
	  
	  <!-- Nav Item - Dashboard -->
      <li class="nav-item active">
        <a class="nav-link" href="qualitycontrol.html">
          <i class="fas fa-fw fa-check-double"></i>
          <span>Quality control</span></a>
      </li>
	  

	  <!-- Divider -->
      <hr class="sidebar-divider">
	  
      <!-- Heading -->
      <div class="sidebar-heading">
        Visualization
      </div>
	  
	  <!-- Nav Item - Dashboard -->
   