[jQuery] Interface: SortableDestroy javascript error

[jQuery] Interface: SortableDestroy javascript error


I am trying to disable a sortable drag and drop interface element by
using sortableDestroy () while an AJAX call is in progress and then
rerun the sortable creation function when it completes. I keep
getting the following error in FireBug though, and also get the yellow
javascript error icon in IE
dragged.dragCfg has no properties
http://localhost/js/jquery/interface/interface.js
Can anyone help out with this?