How to set the correct number format by contry

Is there a possibility to set a kind of "Regional setting" like in windows.

I use a program in COLDFUSION on a unix server and windows NT server. In this program i use a function who format the number like the regional setting of the server.

Exemple : if i have 1500.02

In NT : american format : 1,500.02
european format : 1.500,02

In Unix : american format : 1,500.02
european format : 1500.02

How can I set the correct number format by contry?

Thanks in advance.