function pnggifie6() {
	if (navigator.appVersion.indexOf("MSIE 6.0") != -1) {
		return "gif";
	} else {
		return "png";
	}
}

function EcrireCookie(name,value,expires,path,domain,secure) {
     document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
	((secure) ? "; secure" : "");
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1) endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}
function LireCookie(name)
{
	var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
        return getCookieVal (j);
    	i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break;
    }
	return null;
}
function EffaceCookie(name)
{
	if (LireCookie(name)) {
        document.cookie = name + "=" +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}


function DejaConsulterAnnonce() {
	nom = "annonce_afpi";
	nom_var = LireCookie(nom);
    if (nom_var == null) {
        nom_var = "1";
        duree = 1;  // Durée de vie du cookie en jours
        date_expire = new Date();
        date_expire.setTime(date_expire.getTime() + (duree*24*60*60*1000));
        EcrireCookie(nom,nom_var,date_expire,"/");
        return 0;
    } else {
        return 1;
    }
}