"select" function sequence

Hi folks,

As we all know, the "select" function give a number to each element as the number of elements in the select.
for example:
I have a program which ask a user to select a language:

Please select the primary language

1) Arabic 6) Hebrew 11) Portuguese
2) Chinese 7) Indic 12) Russian
3) French 8) Italian 13) Spanish
4) German 9) Japanese 14) Other
5) Greek 10) Korean 15) Quit language menu

The select has 15 elements and therefore,the select gives a number from 1 to 15 to each element.

My question is:
I want to assign the number "99" to the option "Quit language menu".
Is it possible?
Is it possible to influence on the select sequence that if i have n elements in the select ,and i want to add a new element ,the next element (n+1) won't get the number (n+1)?

Thanks in advance.
Nir

why don't you just use "case" instead of "select"?