I understand PD, but there are other initials with which I am unfamiliar such as PWP. Parent Without Partners uses PWP. Is there a glossary somewhere on the internet? -- Vestel B. Shirley, Ph.D. , Laboratory Manager Natural Resources & Environmental Design, NCA&TSU 1601 East Market Street, Greensboro, NC, 27411 Tel: (336) 334-7243 Fax: (336) 334-7844 email: [log in to unmask] http://www.ncat.edu/~soa/labs/analyticalservices/