Crystal Reports Need help on how to concatenate fields

Message

   Hello,

I am trying to concatenage 3 fields together: Location + Year + WONumber using following syntax:

{Location} & "-" &{ Year} & "-" & {WONumber}

Result: LOCATION1-2,009.00-377.00

Could you please help me on how to format to eliminate the separator(,) and decimal? so the result would look like this:

LOCATION1-2009-377

Thanks a million

Tuan