I found this in another posting - hope it helps others - It worked for
mehttp://www.adobeforums.com/webx/.3bc0df31/4Chris Trubiani - 6:36am Jul
13, 06 PST (#3 of 5) Ok, so what you would need to do then is have a
script on the change event on your fields, that tests the length of
xfa.event.newText to see if it's the length you want, and if it is then
call xfa.host.setFocus() to move focus to the next field. Something
like: if (xfa.event.newText.length == 2) {
xfa.host.setFocus("TextField2"); } C...