Setting sort order through scripting

[Moon]

Here is what I need to do, and could use the advice of all of you out there.

Fields: Passenger (text), Driver (text); Rank (number); RankAdjust (number)

Following a search on driver, I get nine records. I assign each record a Rank number from one to nine. However this rank will change based the users requirements. I need to be able to set a passenger to a different number by entering the new rank in the RankAdjust field, post the change and have the script adjust the other Rank numbers in the list. For example:

John 1

Mary 2

Jim 3

Marty 4

Alex 5

Ted 6

Kim 7

Mike 8

Joan 9

Suppose I want to change Kim from 7 to 4. Marty needs to go from 4 to 5, Alex from 5 to 6, And Ted from 6 to 7. Passengers 1, 2, 3, 8 and 9 do not change.

There are 30 drivers, and about 250 passengers (not all drivers have nine pax, but none have more than nine).

I do not want any manual intervention to make the adjustments other than to enter the new rank in the respective record's RankAdjust field, and hit the button to trigger the script. My numb brain isn't working right on this one. How do I do it?

[Moon]

Nevermind. The brain re-engaged and I have it solved.