help

[Enrique Arredondo]

I can't think of a way to do this little project, maybe someone can shade 
me  some light:

I need to display the next available number when the user inputs the first 
2 digits , so filepro has to check on the database until it finds an 
available one.

That is:
User input
------
13      --- >   so I have to find from 00 thru ZZ and show which one is 
not on use.

How can I increment from 00 all the way to ZZ so it shows me  13A4 or 13R9 
available.

Thanks