I found a place:
www.homedecorators.com (I think it belongs to Home Depot) they send out a magazine called: Home decorators (what else) and in the last issue on page 52 they show sonme shoji dividers at a reazonable (?) price: 71"h x 88.5 w for $169.00, They are room dividers but it they are placed behind the sliding door it will do the trick.