title: Javascript to get two parents up (no jQuery)
body: <p>I've got:</p>
  
  <pre><code>&lt;div id='someId'&gt;
      &lt;div&gt;
          &lt;div onclick='someFunction(event)'&gt;
              Text
          &lt;/div&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  
  someFunction(event){
      var twoParentsUpId = ??????
  }
  </code></pre>
  
  <p>How can I get this "someId" with the other two DIVs not having any IDs?</p>
  
  <p>... not using jQuery.</p>