function newslettervisability() {
    var x = readCookie("newsletterset");
    if (x) {
        document.getElementById("newsletter_signup").style.visibility = 'hidden';
    }
    else {
        document.getElementById("newsletter_signup").style.visibility = 'visible';
    }
    return true;
}
function newsletterset() {
    createCookie("newsletterset", 1, 999);
    newslettervisability();
    return true;
}
function newsletterclear() {
    eraseCookie("newsletterset");
    newslettervisability();
    return true;
}
if (window.addEventListener)
    window.addEventListener("load", newslettervisability, false)
else if (window.attachEvent)
    window.attachEvent("onload", newslettervisability)