CANBERRA (Reuters) – The Australian radio station behind a prank call to a British hospital will donate its advertising revenue until the end of the year to a fund for the family of the nurse who apparently took her own life after the stunt, the company said on Tuesday. Southern Cross Austereo , parent company of Sydney radio station 2Day FM, said it would donate all advertising revenue, with a minimum contribution of A$500,000, to a memorial fund for the nurse, Jacintha Saldanha, who answered the telephone at the hospital treating Prince William’s pregnant wife, Kate. …