title: On form input focus, show div
body: <p>I have a form with an input (<code>#test</code>). Does anyone know how to, when in focus, display another div (<code>#tool-tip</code>) with jQuery?</p>
  
  <pre><code>&lt;form&gt;
      &lt;div id="tool-tip"&gt;&lt;/div&gt;
      &lt;input id="test" /&gt;
      &lt;input type="submit"&gt;
  &lt;/form&gt;
  </code></pre>