selectable - make function active

selectable - make function active


hello,
i want to do:
alert("list changed");
whene the selectable list having change.
i tried this but its not working:
<script type="text/javascript">
    $(document).ready(function(){
        $("#most-views").sortable({
            opacity: 0.6,
            cursor: "move",
            change: function(){ alert("list changed"); }
        });
    });
</script>
thanx for halping.