I ran across this wonderful publication in J of Histochemistry and
Cytochemistry, March 2002 that could help out a lot of bonehead people.
You can go to www.jhc.org and read the abstract.  

Dengshun Miao and Andrew Scutt 
     Histochemical Localization of Alkaline Phosphatase Activity in
Decalcified Bone and Cartilage J. Histochem. Cytochem. 2002 50: 333-340
Gayle Callis
MT,HT,HTL(ASCP)
Histopathology Supervisor
Veterinary Molecular Biology - Marsh Lab
Montana State University - Bozeman
19th and Lincoln St
Bozeman MT 59717-3610

406 994-6367
406 994-4303 (FAX)