Working?

If I see in source, does that mean its working?

<script type='text/javascript' src='//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js'></script>
<script type='text/javascript'>try{jQuery.noConflict();}catch(e){};</script>

<script type='text/javascript' src='//ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js'></script>
<script type='text/javascript'>

http://wordpress.org/extend/plugins/use-google-libraries/