I have some wood rot on the center section of my french doors. The part this is rotted is not part of the door itself, it appears to be a wood piece that is attached to the door, but I'm not sure how. Both doors are in good condition as well as the door frame.

I assumed I would need to replace the entire frame/doors, but thought I would ask first. Seems like a huge expense for such a small rotted piece.

I couldn't get the pictures to post, but here are the links to them.
http://farm4.staticflickr.com/3803/9...5b286861_z.jpg
http://farm6.staticflickr.com/5476/9...f3575571_z.jpg

Thanks for any advice