how to tab to a buttom on the main form a afterupdate event from a subform combo box

[jaymin]

I have a form with a subform, when i finish entering the data of the last combo box of the subform i would like to have it tab to the exit button on the main form, it sounds easy but i am having alot of trouble doing it, can anyone suggest something for me please.
I have looked at the syntax for main/subform but it not working.
Peter

[alansidman]

Crossposted: http://www.access-programmers.co.uk/...d.php?t=227917

Please read this: http://www.excelguru.ca/content.php?184

[jaymin]

i am sorry i did not know about cross posting i will not do it again
Peter