receive callback function not being called with sortable()

receive callback function not being called with sortable()


I have a simple table using the following javascript:
$(document).ready(function(){
$("#contents tbody").sortable({
revert: true,
receive: function(e,ui) {
alert("in the receive");
console.log("received ", ui.item, " from ", ui.sender);
}
});
});
I am able to sort the <tr> tags just find, but the receive callback is
never run.
Am I missing something?
Thanks for the help.