session.perspective_id = null;
session.instance_id = null;
session.user = null;
session.auth = null;
session.manager = null;
session.admin = null;
session.manager_js = 0;
session.admin_js = 0;
session.start_yr = null;
session.end_yr = null;
session.span_yrs = null;
session.y1 = null;
session.y2 = null;