[REFACTORING] refactoring + cleaning

apps/maarch_entreprise/js/functions.js

modules/attachments/js/functions.js

modules/cases/js/functions.js

modules/entities/js/functions.js

modules/fileplan/js/functions.js

modules/folder/js/functions.js

modules/notes/js/functions.js

modules/notifications/js/functions.js

modules/reports/js/functions.js

modules/sendmail/js/functions.js

modules/thumbnails/js/functions.js