try this Last day of the month is: <% function daysInMonth(today) {
return new Date(today.getFullYear(), today.getMonth(), 0).getDate(); }
function month_fr(today){ var monthFr = ["Janvier", "Février", "Mars",
"Avril", "Mai", "Juin", "Juillet", "Aout", "Septembre",
"Octobre","Novembre","Décembre"]; var thisMonthFr =
monthFr[today.getMonth()]; return thisMonthFr.toString(); } var today =
new Date(); %> <%= daysInMonth(today) %> <%= month_fr(today) %>, <%=
formatDate (today, "%4Y") %>