Crystal Reports Print mult address for sample facility

Message

     Hi

I'm trying to combine both a facility address and mailing address to be next to each other.  I'm currently only using 2 table to get it to work

The way that the tables are written is something like this
ID_S     Desc                        
1           Fac Address             
2           Mailing Address
3           Alt Mailing Address
4           Corp Address

The second table
CI    Company       Street       City       State       Zipcode         ID_S
1      Joe               12 Main Sr  Cudahy      WI         53221            1
1      Joe                34 North St  Oak Crek WI         54312            2
2      Smith            56 West Av   Milw         WI        53215            1
3      Smith             78 Apple       Milw         WI        53214            3

Printout

Joe Company
12 Main Str                         34 North Str
Cudahy, WI  53221            Oak Creek, WI  54312

What I want is to generate a bill showing both the Facility address and the mailing address.  I tried to printout both the facility address and the mailing address without success. 
One being a conditional function

FacAdd 

IF ID_S = 1
THEN FacAdd = [Street]

FacMail
IF IS_S = 2
THEN FacMail = [Street]

When the user starts the program, they enter an invoice number which selects only one Company ID.  Right now I get either the facility address or the mailing address,not both, or errors on my function.

Thank you for any help that maybe given.