function changeBigNewsBox(id,total) {
    for (var i = 1; i <= total; i++) {
        //var bignewsbox = document.getElementById('bnv' + i);
        //bignewsbox.style.display = 'none';
        document.getElementById('news' + i).style.visibility = 'hidden';
    }
    //var currentbigbox = document.getElementById('bnv' + id);
    //currentbigbox.style.display = 'block';
    document.getElementById('news' + id).style.visibility = 'visible';
}