w chun wrote: >>- ->: \d+/?\d* >>- -> >>- ->ie 1 or more digits followed by 0 or 1 slashes followed by 0 or more digits. > > > > this looks like it'll also accept invalid data, such as "1/" ... i > think there's some more tweaking involved to get it so that if there's > a '/', there is at least one digit afterwards. \d+(/\d+)? Kent