Include Twitter share fails
<p>I am struggling with including this javascript snippet into PHP code and make it work.
How can I change it to not only successfully include it but also get it to work as expected?</p>

<pre><code>&lt;a class="popuptweet" href="http://twitter.com/share?url=http%3A%2F%2Fdev.twitter.com%2Fpages%2Ftweet-button" onclick="return popitup('http://twitter.com/share?url=http%3A%2F%2Fdev.twitter.com%2Fpages%2Ftweet-button')"&gt;&lt;/a&gt;
</code></pre>
