On Tue, 2003-05-13 at 07:02, Erwin Ambrosch wrote: > But how can I test of non existens of nol. When the name is what's being evaluated, non-existence evaluates as a false value. Thus: <dtml-unless nol> Stuff to do if nol is false, empty, or doesn't exist. </dtml-unless> or <dtml-if nol> Stuff to do if nol exists and is true / non-empty </dtml-if> That's not exactly what you asked, but... HTH Dylan