 <p>Stumbled upon this question and thought I would offer an alternative. If you run into trouble with popup blockers, you can use plain old HTML to launch a url in a new window/tab. You won't have as much control over that is displayed (scrollbars, toolbar, etc), but it works even if javascript is disabled and is 508 compliant:</p> <pre><code>&lt;a href="http://www.google.com/" target="_blank"&gt;Open new window&lt;/a&gt; </code></pre> <p>You can read more about the various target attributes here: <a href="https://developer.mozilla.org/en/HTML/Element/a" rel="nofollow">https://developer.mozilla.org/en/HTML/Element/a</a></p>