your code works for me. May be x and/or y are not the right type (strings?) cb > -----Original Message----- > > Hi, > > I have a simple question - how do I use the fmod function in the math > module with dtml ? > > I've tried something like this(and a lot of variants): > > <dtml-if expr="_.math.fmod(x,y) == 0"> > do something > </dtml-if> >