Thanks Jimmy, unfortunately it doesn't work on my Submit button (which is where I do want it).. Here's what I have on the standard Submit button.
----- form1.SF_P8.SF_print-submit.EmailSubmitButton::click - (JavaScript, client) ------------------
xfa.messageBox("Please ensure you also print a copy for your records", Warning, 1, 1);
--
this makes my button do nothing at all, not even submit. I think it's because there are 2 events associated with it, the invisible "submit" and the new warning. Any suggestions?
Harry