function age(dateString) {
	var d=new Date(dateString);
	var m=new Date();
	var age_temp=""; 
	var age_a = m.getFullYear()-d.getFullYear();
	var age_m = m.getMonth()-d.getMonth();
	if (age_m < 0)  {
		age_a--;
		age_m = 12 + age_m;
	} else {
		if (age_m === 0) {
			if (m.getDate()<d.getDate()) { 
				// anniversaire pas encore passé
				age_a--;
				if (age_a <= 2) {
					age_m = age_m + 11;
				}
			} 
		} else {
			// mois supérieur 
			if (m.getDate()<d.getDate()) {
				age_m--;
			}
		}
	}
	if (age_a>=2) {
		age_temp=age_a+" ans";
	}
	else if (age_a<2) {
		if (age_m>0) {
			age_temp+=(age_a *12 + age_m)+" mois";
		}
		if (age_temp==="") {
			age_temp="moins de 1 mois";
		}
	}
	return age_temp;
}