function makeArray() { for (i = 0; i<makeArray.arguments.length; i++) this[i + 1] = makeArray.arguments[i]; }
function getCorrectedYear(year) {
     year = year - 0;
     if (year < 70) return (2000 + year);
     if (year < 1900) return (1900 + year);
     return year;
 }
function y2k(number) { return (number < 1000) ? number + 1900 : number; }
var months = new makeArray('janvier','février','mars','avril','mai','juin','juillet','août','septembre','octobre','novembre','decembre');
var date = new Date(document.lastModified);
var dateY2K = new Date(getCorrectedYear(date.getYear()),date.getMonth(),date.getDate());
today = new Date();
day = today.getDate();
end = "";
if (day==1 || day==21 || day==31) end="";
if (day==2 || day==22) end="";
if (day==3 || day==23) end="";
document.write("Dernières modifications : " + dateY2K.getDate() + ' ' + months[dateY2K.getMonth() + 1] + ' ' + y2k(dateY2K.getYear()));