jQuery UI Draggable/droppable across frames

jQuery UI Draggable/droppable across frames

Hello,

What I would like to achieve is this:
- I drag a DIV element from a first document that contains an IFRAME
- I drop this DIV element into a droppable element, but in a second document (inside the IFRAME)

Is there a way to use jQuery UI draggable & droppable to do this?
Thanks for your help.
Y.Deltroo