title: window.parent not working in jsni
body: <p>I am using GXT's sencha </p>
  
  <p>We have a web application named "dashboard"
   <strong>url = localhost:8080/dashboard/</strong></p>
  
  <p>We have another webapplication named issuetracker</p>
  
  <p><strong>url = localhost:2990/issuetracker/</strong></p>
  
  <p>Now i have a velocity template in the issuetracker web application in which i have given the following code</p>
  
  <pre><code>&lt;iframe src="localhost:8080/dashboard" width="500" height="600"&gt;
  &lt;/iframe&gt;
  </code></pre>
  
  <p>When i click a button in the dashboard web application the url of the issuetracker application should change like "localhost:8080/issuetracker/issues?mqlVersion=25". 
  This 25 value comes from the dashboard web application.</p>
  
  <p>When i tried writing jsni code none of the following values showed up
  the top most window's url which is "localhost:2990/issuetracker/"</p>
  
  <ul>
  <li>$wnd.top.location </li>
  <li>$wnd.top.location.href </li>
  <li>$wnd.parent.location.href</li>
  <li>$wnd.parent.location </li>
  <li>window.top.location </li>
  <li>window.top.location.href</li>
  <li>window.parent.location.href </li>
  <li>window.parent.location</li>
  </ul>
  
  <p>Where am i going wrong?
  Any suggestions.</p>