A PEBBLE BEACH MAN ACCUSED OF MANSLAUGHTER HAS BEEN SCHEDULED FOR TRIAL.     30-YEAR-OLD STUART ELDER WAS DRIVING UNDER THE INFLUENCE LAST YEAR WHEN HE CRASHED INTO AN ONCOMING VEHICLE.    DRIVER 72-YEAR-OLD SHARON DALY AND PASSENGER 65-YEAR-OLD LINDA LA-RONE WERE PRONOUNCED DEAD AT THE SCENE.    ELDER’S TRIAL HAS BEEN SCHEDULED FOR JANUARY 26^TH.     HE FACES 15 YEARS IN PRISON IF CONVICTED.