Help With this Ajax function !!! Please

Help With this Ajax function !!! Please

Hi ..

why this function does`t work
[code]
<script>
function loadpage(url, div) {

$(div).html("ccccccccc");
}
</script>
<a href="#" onClick="return loadpage('aaa.htm', 'subcontent');">test</a>
[/code]


How , why ...

Many Thanks!!!