jQuery Sortable - scrolling in div with overflow:auto

Question

I have a page using jQuery with some lists which have been made sortable. The list is inside a div which has a fixed height and overflow set to auto in the stylesheet.

The scroll attribute of sortable seems to affect the scrolling of the whole page, is there any way I can make the container div automatically scroll up or down when the mouse is near the edge?

Thanks

Graeme