Keyless Remote, which one do I need?

I've been looking on Ebay and there's a bunch of key fobs for sale and they list their FCC numbers. The only problem is when I bought my 1998 Toyota Avalon XLS it didn't have the key fob with it so I don't know what FCC number to look for. I checked with the local dealer and they said they could only see a Toyota part number (no help). Anyone know which key fob will work for me or what FCC number I should be looking for? Is there a range of numbers? Any help would be greatly appreciated. Thanks.

Jeff

Hyq1502y
Canada: 1551102578 (last Digit 8 Or 9)

FCC ID: HYQ 1512 Y
CAN: 1551 102 578
RSS - 210
DENSO

http://toyotasecurity.buypartsonline.biz/add1.html (http://toyotasecurity.buypartsonline.biz/add1.html)

This site may help.

Whoa...

The numbers provided above are for the factory remote, but Toyota had 2 different types available on the 98 Avalons.

Factory
(as stated by csaxon)

and Dealer/Port installed:

FCC: BAB237131-022
(gray in color)