Hoi Jeroen,
I think your JS code contains invalid characters, if I verify the source with Firefox it shows  chars that shouldn't be there.
<script language="javascript"Â type="text/javascript">
//<![CDATA[
var cot_loc0=(window.location.protocol == "https:")? "https://secure.comodo.net/trustlogo/javascript/cot.js" :
"http://www.trustlogo.com/trustlogo/javascript/cot.js";
document.writeln('<scr' + 'ipt language="JavaScript" src="'+cot_loc0+'" type="text\/javascript">' + '<\/scr' + 'ipt>');
//]]>
</script>
Can you remove those and try again?
Groet Ronny