How about a photo of the door jamb showing what you're missing. It looks like you have the dovetails on the doors. What you need will likely be very similar to the picture I posted above with the bumpers and cover but we don't know without seeing what you do have.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.