function setPromoCookie() {
    var today = new Date();
    today.setTime(today.getTime());
    var expires_date = new Date(today.getTime() + (1000 * 60 * 60));
    document.cookie = 'cbspromohdr' + "=" + expires_date;
    var pmhdr = document.getElementById('promoholder');
    pmhdr.style.display='block';
}
function getPromoCookie() {
    var a_all_cookies = document.cookie.split( ';' );
    var a_temp_cookie = '';
    var cookie_name = '';
    var cookie_value = '';
    var b_cookie_found = false; 
    for ( i = 0; i < a_all_cookies.length; i++) {
        a_temp_cookie = a_all_cookies[i].split( '=' );
        cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, '');
        if ( cookie_name == 'cbspromohdr' ) {
            if ( a_temp_cookie.length > 1 ) {
                cookie_value = a_temp_cookie[1];
                expired   = new Date(cookie_value);
                var today = new Date();
                today.setTime(today.getTime());
                var curr_date = new Date(today.getTime() - (1000));
                if (expired < curr_date) {
                    setPromoCookie();
                }
            }
            b_cookie_found = true;
            break;
        }
        a_temp_cookie = null;
        cookie_name = '';
    }
    if ( !b_cookie_found ) {
        setPromoCookie();
    }
}
function exitPromoHdr() {
    var pmhdr = document.getElementById('promoholder');
    pmhdr.style.display='none';
}