Only tested in Firefox.
Drag me!
The markup for this is simply;
<draggable id="some-id" revert="false"> <img src="some-image.jpg" /> </draggable>
which triggers the following scriptaculous drag-and-drop code;
new Draggable( "some-id", {revert:false} );
The script that does this is here.
Drop is TBD ...
More on my weblog.