UI sortable: how to leave the original position visible until the drop?

UI sortable: how to leave the original position visible until the drop?

In the standard behavior demonstrated at http://jqueryui.com/demos/sortable/ when you drag an item in the list a placeholder element is displayed where the item would be dropped.

However, the original location of the item to be dropped is not displayed in any way.

I would like to leave the original location visible until the drop, so that the visual feedback is analogous to the way the original is left in place for the "semi-transparent clone" option depicted at http://jqueryui.com/demos/draggable/#visual-feedback

Is there any way I can do this with sortable?

One person suggested that I use
  1. $(elt).sortable({helper: 'clone'})
While this does leave the original item in its original position in the DOM, it is automatically hidden (its style is set to "display: none").  Disabling, or gaining more control over, that style would be helpful.

Thanks!