[pmwiki-users] Unexpecte JavaScript at bottom of PmWiki page

[Sandy]

At the bottom of my home page I'm getting unexpected JavaScript. All I 
know about JavaScript is how to recognize it. (The opening tag is a bit 
of a giveaway.)

http://www.cricket.onebit.ca/

1. Anyone know how it got there? (Maybe the webring code?)

2. Is it something I should worry about?

Thanks,

Sandy

+++++

The code is:


<!-- revision history -->
<!-- did lots before June 9, 2006-->
<!-- June 9, 2006 changed browse to , for PmWiki Rev 2.1.10-->


<script language="JavaScript">
<!--
var SymRealOnLoad;
var SymRealOnUnload;

function SymOnUnload()
{
   window.open = SymWinOpen;
   if(SymRealOnUnload != null)
      SymRealOnUnload();
}

function SymOnLoad()
{
   if(SymRealOnLoad != null)
      SymRealOnLoad();
   window.open = SymRealWinOpen;
   SymRealOnUnload = window.onunload;
   window.onunload = SymOnUnload;
}

SymRealOnLoad = window.onload;
window.onload = SymOnLoad;

//-->
</script>