title: javafx scene.lookup
body: <p>I am converting an existing swing app to JavaFX.  I would think that this code would return a node called "#paneRightBottom", but it returns null.  Using the netbeans debugger I am able to drill down on the "topNode" and find the "#paneRightBottom" node six levels deep, so it is there.  I have read the online docs and think that I should be getting a node.  Does anyone have an idea of where I've gone wrong?</p>
  
  <pre><code>        Node topNode = FXMLLoader.load(AFI.class.getResource("afimain.fxml"));
          System.out.println(topNode.getId());
          Node node = topNode.lookup("#paneRightBottom");
  </code></pre>