change auto number in access 2003

I am developing an asp reservation system.
Each user booking will be kept in a database which will have a unique booking ID!

currently i am using auto number as the booking ID,(increment number)
how to make my own "booking ID" inside the database access?
let say i want my booking ID looks like this...

FRS0001 until FRS9999

can anybody suggest another way if this cannot be done?
thanx!

Start by manually creating a booking ID (type it into the database), then write some code which will get the booking id, add 1 to it, then use that for the new booking id.

what do you mean by add 1 to it?
i dont understand smokie?
ok..in access theres a autonumber usually used for ID,
it is an autonumber,

Can i change this autonumber to...maybe,
autonumber with alphabethic inside it generated randomly?
for example 76DC54, 70H23K, BSS92P....can microsoft access do that?

Leave the auto number field alone and just create a new field (text) for your booking ID. Then just use ASP to create a custom function which creates the booking id in the format you want.

ok, then proceed to my first reply.

smokie...refering to your first reply,
can you show me the sample coding for that?
ok...first i create a booking ID and type the first value to the database manually
e.g: FRS0001

then i should create an asp coding to add 1 to the FRS0001 to become FRS0002 for the next ID,is it right? so, can you teach me how