Code
<script src="http://wt-plugins.googlecode.com/files/jquery.wtMeta.js"></script>
<meta name="description" content="три">
<script>
function MetaCounter(id,metaName){
count = $.wtMeta(metaName);
$("#"+id).html(count.length);}
</script>
<body onload="MetaCounter('metacount','description')">
<font id="metacount"></font>
</body>
Надеюсь помог...