function setCookie(nom, valeur, jours)
{
	var expDate = new Date();
        expDate.setTime(expDate.getTime() + (jours * 24 * 3600 * 1000));
        document.cookie = nom + "=" + escape(valeur)
            + ";expires=" + expDate.toGMTString()+"; path=/";
}

function delCook(nom) { setCookie(nom,"",-1); }

function getCook(nom) {
deb = document.cookie.indexOf(nom + "=");
if (deb >= 0) {
	deb += nom.length + 1;
	fin = document.cookie.indexOf(";",deb);
	if (fin < 0) fin = document.cookie.length;
	return unescape(document.cookie.substring(deb,fin));
	}
return "";
}