SORTABLE CANCEL
by bizamajig
HTML
<ul id='sortable'>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
JavaScript
var sorting = false;
$('#sortable').sortable({
revert: true,
start: function() { sorting = true; },
stop: function() {
$('#sortable').sortable('cancel');
sorting = false;
}
});