Well, there is a visible when I view the source of your page.
As the validator says, it's in the <head> section of the page, right here:
<script type='text/javascript' src='http://www.fusionrain.com/blog/wp-content
/livecalendar/xmlhttprequest.js'></script><br />
<script type='text/javascript' src='http://www.fusionrain.com/blog/wp-content
/livecalendar/kcalendarscript.php'></script>
(I've added some line breaks in there to aid readability)
You have two script lines (copied and pasted from somewhere maybe?) with a between them. Delete that and you should be fine.