var cible = new Date("December 24, 2001 23:59:59");
var mms_an = 365 * 24 * 60 * 60 * 1000;
var mms_jour = 24 * 60 * 60 * 1000;
var mms_heure = 60 * 60 * 1000;
var mms_minute = 60 * 1000;
var mms_seconde = 1000;

function decompte() {
	var aujourdhui = new Date();
	var change_a = -1;
	var change_j = -1;
	var change_h = -1;
	var change_m = -1;

	var diff_mms = cible.getTime() - aujourdhui.getTime();

	diff_annee = Math.floor(diff_mms / mms_an);
	diff_mms -= diff_annee * mms_an;
	diff_jours = Math.floor(diff_mms / mms_jour);
	diff_mms -= diff_jours * mms_jour;
	diff_heures = Math.floor(diff_mms / mms_heure);
	diff_mms -= diff_heures * mms_heure;
	diff_minutes = Math.floor(diff_mms / mms_minute);
	diff_mms -= diff_minutes * mms_minute;
	var diff_secondes = Math.floor(diff_mms / mms_seconde);

	document.formulaire.annees.value = diff_annee;
	document.formulaire.jours.value = diff_jours;
	document.formulaire.heures.value = diff_heures;
	document.formulaire.minutes.value = diff_minutes;
	document.formulaire.secondes.value = diff_secondes;
	setTimeout("decompte()",1000);
	}