title: Change textarea rows in jquery
body: <p>I'm trying to change the UI in one of our web administration interfaces with Tampermonkey but I can't get it to work, probably because they've set the same id for the tr, span AND textarea elements.</p>
  
  <pre><code>&lt;tr id=thisspecificid&gt;
      &lt;span id=thisspecificid&gt;
          &lt;div&gt;
              &lt;textarea id=thisspecificid rows=15&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>If I run <code>$("#rule_definition")</code> I only get the tr element.</p>
  
  <p>Do you have any idea on how to change the textarea to ie 30 rows?</p>
  
  <p>Please note that I do not have any control over the html part at all and I ONLY want to change the rows, nothing else.</p>
  
  <p>Kind regards,
  Patrik</p>