How can I get my array as a *nice* human readable list in JavaScript?
<p>I have a list of allowed file extensions that can be uploaded to my site.</p>

<p>I check them with <a href="http://docs.jquery.com/Plugins/validation" rel="nofollow">jQuery Validation plugin</a>.</p>

<p>I'm displaying an error message if they choose a non supported extension.</p>

<p>It looks like</p>

<pre><code>var msg = 'You may only upload files of type ' + allowedExt.join(', ');
</code></pre>

<p>Obviously the list doesn't look too flash. I'd like it to look more <em>human readable</em>.</p>

<p>Any way to do this?</p>
