Add amount in Euros on proforma and invoices

Hi ,

Egypt has a new customer that requires the amount of Euros on his proformas and invoices, so need to change the out put RD00,RD05,RD06 so that the amount in Euros appear after the toatl of the document.This has to be customer specific and driven by a custome table.

Need the answers asap please

Thanks

Suchi