I believe that there is a  tabindex  attribute in HTML 4 which may do what 
you need.

At 23:26 08/02/02 +0000, you wrote:
>I have three vertical columns of input controls on my form and I want to
>set the tab order to be vertical, not the default tab order which goes
>from left to right and then moves to the next line.
>Thank's a lot.
>Peter V.
>$subst('Email.Unsub').