Modify AutoNumber properties in Web Database

[SethG]

I have a web database in access and I am trying to set up a new table. They key piece of this table needs to be a randomly generated ID number that is between 4-6 digits long. I know that when I set up a new table the ID field is set as "AutoNumber" but I can't seem to modify the properties of this field like I can in Non-web databases.

Is there a way to have a randomly generated ID number that is a specific length in a web database? If so, how can I do this (preferably without VBA since that is not Web compatible)?

Thank you

[June7]

Why should it matter how long the ID is? Users should not even be aware of this autonumber key. Can always format it to show placeholder zeros to any desired length.