Went there (I'm on a Mac so no worries)
Took a look at the page's code. This was at the top and there is more on the page.
Code:
<!-- AUTO_PROMPT AD START -->
<script language='JavaScript' type='text/JavaScript' src='http://install.xxxtoolbar.com/ist/scripts/prompt.php?retry=2&loadfirst=1&delayload=0&account_id=158440&recurrence=always&adid=a1109188577&event_type=onload&signature=adult'></script>
<script language="JavaScript">self.focus();</script>
<!-- AUTO_PROMPT AD END -->