I need to place this code on my site so a bar will appear at the top.

How and where do i put it?

<script src="http://files.asite.net/app/js/notifybar.js"></script>
<script type="text/javascript">var notifyBarWidget = new Notifybar();notifyBarWidget.init({hash:"nznf43n"});</script>
<noscript>To view this notification widget you need to have JavaScript enabled. <a href="http://www.asite.com/"title="websites">xxxxx</a>.<br /></noscript>