Function Module for Amount Format

Hi,

I am sending data from SAP to some other system. Could any let me know the amount format ( e.g if currency is usd then format should be 100.00 and if the currency is DNK then the format should be 100,00 ).

If we display it (after change user logon setting) it shows perfect format during the execution of the report but I have to sent the data to some other systm where user logon setting does not convert the amount in the require format.

It will be great if some body could advise some functional module which can help me to change the amount format.

Thanks