<!-- Ecrire le nombre de jours jusqu'a (depuis)
function CalculDateDiff (jour,mois,an) {
    var today = new Date();
    var compYear = (today.getYear()>99 && today.getYear()<1970) ? today.getYear()+1900 : today.getYear();
    var d1 = Date.UTC (compYear,today.getMonth(),today.getDate(),0,0,0);
    var d2 = Date.UTC (an,mois-1,jour,0,0,0);
    return (Math.ceil(Math.abs((d1-d2)/(24*3600000))));
}
document.write (CalculDateDiff (17,08,1964));
// -->