I just found out that the 10-year tables listing births are available online. Er..some of them. There were quite a few listed in the first decade of the Revolution (1793-1802). I think the next decade wasn't available. Let me see if I can cut and paste the directions to get to them on the French website... (Thank you Annette!)
http://archives.doubs.fr/Click on Portail de recherche, middle of page.
Access au portail de recherche, right side
Creez votre propre comte - blue box - this is where you create a password. After you get that set up, and then you enter your name and password, you get another screen. Blue box now says bienvenue - welcome.
Click on dark blue box labeled recherche guidee
At the bottom left corner of the next page, click on Etat des fonds (in dark yellow)
Click on fourth line down - begins with commune . . .
Click on etat civil.
Click on tables decennales
Click on the line marked 1793 -
Scroll down to find the town you want - suivant, at bottom, basically means next. (you want
Dung)
But, before you go to the town records, to find the Menegay file, type the name in the box marked recherche, upper left.