function cookWidth() {
    var frameWidth = 1200;
    if (parseInt(navigator.appVersion) > 3) {
        if (navigator.appName == "Netscape") {
            frameWidth = window.innerWidth;
        }
        if (navigator.appName.indexOf("Microsoft") != -1) {
            frameWidth = document.body.offsetWidth;
        }
    }
    var date = new Date();
    date.setTime(date.getTime() + (24*60*60*1000));
    var expiresDate = "; expires=" + date.toGMTString();
    document.cookie = 'frameWidth=' + frameWidth + '; expires=' + expiresDate + '; path=/';
}