Yesterday, SAGE Eldercare staff and Spend-A-Day Adult Day Health Care clients celebrated the 100th birthday of Jan Sierant of Berkeley Heights.  SAGE, located at 290 Broad Street in Summit, supports the independence, well-being and quality of life of older adults, their families and caregivers by offering a broad range of client-centered health, social and support services.  SAGE serves over 6,000 people throughout Union, Essex, Morris and Somerset Counties, as well as across the United States.  For more information, call 908.273.5550 or visit www.sageeldercare.org.