I was reading earlier postings about 'variables' or the lack of them in Zope and I went off and investigated Python Methods and External Methods and I've got them working ... but .. I can't figure out how to use them to solve my problem ... I have an SQL method and I've generated the form and results report using the standard wizard - absolutely wonderful. Let's say I have an input variable, called 'customer' on the form which is passed to the SQL method. BUT I want to intercept that variable and do something with it, let's keep it simple and say that I want to put the string "CT" in front of what the user enters (I know that's trivial but for the sake of argument). I can write an External Method or Python Method which does the necessary but it returns the string back to the calling object as text which is displayed by the browser. Can anyone tell me how to get that new string back into the variable 'customer'. Please :-) Richard Moon richard@dcs.co.uk