I only just noticed that SGML does not allow non-unique declared values in an ATTLIST. This means that only one (Y|N) toggle is allowed per element. The solutions include becoming more verbose (weighted|weightless) or less: definining "0" as "no" and "1" and yes and declaring "NUMBER" as the value. Other non-unique values are affected too, of course, but (Y|N) is the case in which we are most frequently in error. Just thought you'd want to know. >pfs<