clean up
evite l'erreur firefox "afficherHeureSurFrise() undefined"
Merge branch 'master' of https://github.com/YvesKamdjo/Ecran-en-Lecture-Ecriture-Mobile
commentaires fonctions_communes.js
commentaires screenFreeBusy
Merge branch 'master' of https://github.com/YvesKamdjo/Ecran-en-Lecture-Ecriture-Mobile