title: jQuery check an hidden checkbox onclick
body: <p>I am on jQuery 1.3.2</p>
  
  <p>I need a very simple code.</p>
  
  <p>I have 4 checkboxes.</p>
  
  <p>One of these checkboxes is hidden.</p>
  
  <p>I want that when one of the 3 visible checkboxes is clicked the hidden one will be automatically checked.</p>
  
  <p>So I have</p>
  
  <pre><code>&lt;input type="checkbox" style="display:none" id="hiddenOne"&gt;
  &lt;input type="checkbox" style="display:block" id="visible2"&gt;
  &lt;input type="checkbox" style="display:block" id="visible3"&gt;
  &lt;input type="checkbox" style="display:block" id="visible4"&gt;
  </code></pre>
  
  <p>So if I click on any visible2 3 or 4 the hiddenOne will be automatically checked.</p>
  
  <p>Is there a way to do that in jQuery?</p>
  
  <p>Thank you!</p>