<script type="text/javascript">
function turnBackBold (speclink) {
        var anchors = document.links
        for (i=0; i<anchors.length; i++) {
                anchors[i].style.fontWeight = '300';
        }
        speclink.style.fontWeight = '900';
}
</script>


then add this to each link:
onclick="turnBackBold (this);"

Submitted for testing:
https://groups.google.com/d/topic/security-onion-testing/qJKFFFsO39c/discussion

Published:
http://blog.securityonion.net/2014/10/new-securityonion-bro-scripts-and.html