Twitter Feed

Can anyone tell me why my site won’t load my latest tweets with this code? my site is http://www.diversifiedent.com, and the tweets are supposed to load on the bottom of the page, but they’re permanently stuck on loading.

$clearcloud_latest_tweet = get_option(‘clearcloud_latest_tweet’);
$zenverse_global_twitter = get_option(‘zenverse_global_twitter’);
if ($clearcloud_latest_tweet != ” && $clearcloud_latest_tweet > 0 && is_numeric($clearcloud_latest_tweet) && $zenverse_global_twitter!=” ) { ?>
<h3>Latest Tweets <span class=”foot_follow”>“>Follow</span></h3>
<ul id=”twitter_update_list”>

• Loading Tweets..

<script type=”text/javascript” src=”http://twitter.com/javascripts/blogger.js”&gt;
</script>
<script type=”text/javascript” src=”http://twitter.com/statuses/user_timeline/&lt;?php echo $zenverse_global_twitter; ?>.json?callback=twitterCallback2&count=<?php echo $clearcloud_latest_tweet; ?>”>
</script>
<?php } else {
$commentsfeed_displayed = true;
?>