People, What I mean is, is there an elegant way to do this: This: !(1,2,3,4,5) would give this: (2,3,4,5, 6,8,10, 12,15, 20) and this: !(1,2,NA,4,5) would give this: (2,4,5, 8,10, 20) ? Thanks! Phil. -- Philip Rhoades PO Box 896 Cowra NSW 2794 Australia E-mail: phil using pricom.com.au