title: change portlet title from code in Liferay without Jquery
body: <p>I'm having solution to change title of portlet through JQuery.</p>
  
  <pre><code>$('#idOfPortlet').find('.portlet-title').html('new title');
  </code></pre>
  
  <p>But we dont want to use JQuery in our project.
  Is there any solution to change title of portlet using YUI or anyother thing through code?</p>
  
  <p>Thanks in Advance.</p>
  
  <p>Regards,
  Mayur Patel</p>