function getCookie(c_name) {
		if (document.cookie.length>0)
		{
			c_start=document.cookie.indexOf(c_name + "=")
			if (c_start!=-1)
			{ 
				c_start=c_start + c_name.length+1 
				c_end=document.cookie.indexOf(";",c_start)
				if (c_end==-1) c_end=document.cookie.length
				return unescape(document.cookie.substring(c_start,c_end))
			} 
		}
		return ""
	}
	function verifierAcces(url) {
		var form 	= document.forms['accesLibre'];
		var jour 	= form.jour.options[form.jour.selectedIndex].value;
		var mois 	= form.mois.options[form.mois.selectedIndex].value;
		var annee 	= form.annee.options[form.annee.selectedIndex].value;
		var ageLegal = 18;
		if (dateValide(jour, mois, annee)) {
			if (estMajeur(jour, mois, annee, ageLegal)) {
				var expire = new Date();
				var unAn = expire.getTime() + (365 * 24 * 60 * 60 * 1000);
				expire.setTime(unAn);
				if(getCookie('landpage') != "") {
					var goto = 'http://' + getCookie('landpage');
				} else {
					var goto = url + '/bacardi_martini.php?test';
				}
				document.cookie = 'validAge=yes; path=/';
				//redirige(goto);
				form.submit();
			} else {
				var expire = new Date();
				var unAn = expire.getTime() - (365 * 24 * 60 * 60 * 1000);
				expire.setTime(unAn);
				document.cookie = 'validAge=no; expires=' + expire.toGMTString()+ '; path=/';
				redirige(url + '/index.php?mode=out');
			}
		} else {
			alert('La date saisie n\'est pas une date valide.');
		}
	}
	function estMajeur(j, m, a, ageLegal) {
		var date = new Date();
		var jour = date.getDate();
		var mois = date.getMonth();
		var annee = date.getFullYear() - ageLegal;
		if(a < annee) {
			return true;
		} else if(a == annee) {
			if(m < mois) {
				return true;
			} else if(m == mois) {
				if(j <= jour) {
					return true;
				} else {
					return false;
				}
			} else {
				return false;
			}
		} else {
			return false;
		}
	}
	function dateValide(j, m, a) {
		var date = new Date(a, m);
		var mois = date.getMonth();
		var nbJoursDansMois = 31;
		for(i = 27; i <= 31; i++) { 
			var tmp = new Date(a, m, i);
			if(tmp.getMonth() != mois) {
				nbJoursDansMois = i - 1;
				break;
			}
		}
		if(j <= nbJoursDansMois)  return true
		else return false;
	}
	function redirige(url) {
		window.location = url;
	}