PHP code printed as HTML

In the template videojs.tpl.php PHP code gets printed as HTML in the attribute class of the video-js-box div.
<div class="video-js-box <? print variable_get('videojs_skin', 'default') ?>" id="videojs-89728-field-ogg">

Please note that you should never use shorthand tags in PHP. Also you might want to have a look at Drupals coding standards: http://drupal.org/coding-standards

Side note: It would be greate if the HTML code wasn't polluted with HTML comments.