title: jQuery find parent form
body: <p>i have this html</p>
  
  <pre><code>&lt;ul&gt;
      &lt;li&gt;&lt;form action="#" name="formName"&gt;&lt;/li&gt;
      &lt;li&gt;&lt;input type="text" name="someName" /&gt;&lt;/li&gt;
      &lt;li&gt;&lt;input type="text" name="someOtherName" /&gt;&lt;/li&gt;
      &lt;li&gt;&lt;input type="submit" name="submitButton" value="send"&gt;&lt;/li&gt;
      &lt;li&gt;&lt;/form&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>How can i select the form that the <code>input[name="submitButton"]</code> is part of ?
  (when i click on the submit button i want to select the form and append some fields in it)</p>