specify only certain elements using jquery sortable
I'm using jquery sortable to make it so users are able to sort the display order of the users on our system. I'm using a permission system, so I only want them to be able to sort the users for which they have access. I want to display all user's information, regardless of whether they have access or not, they just can't move them if they don't. I used to use scriptaculous, and with that system, as long as I didn't include an id with the element, it would restrict them from moving it. That isn't the case with jquery. They are moveable regardless of whether there is an id or not. Is there a way to limit or specify only certain classes or anything so they can only move certain elements?