title: input type=file attached to an onclick event
body: <p>I have a menu like this:</p>
  
  <pre><code>&lt;ul class="sub"&gt;
      &lt;li&gt;&lt;a href="#"&gt;New&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Open&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Save&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Help&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>and I'd like to attach an onclick even to the Open li that would kick off a file open dialog, like <code>input type="file"</code> does.  I can handle attaching code to the li's onclick event, but I don't know what code to attach.</p>
  
  <p>TIA</p>