Thanks for your help, Peter, but I couldn’t get it work this way. Instead, I edited the jquery.global.js. Now, my calendar is getting the two initial letters of each month name (line 415), but not the short names (namesAbbr line 417) nor the shortest names (namesShort line 419). I couldn’t change the first day of the week to Monday when putting 1 in line 412.
Thanks again and best regards,
Amadeu Sanz