function tags(menuName, divName, len, i) {
    for (var j = 0; j < len; j++) {
        if (j==i) {
            document.getElementById(menuName + j).className = "sd01";
            document.getElementById(divName + j).style.display = "block";
        }else
        {
            document.getElementById(menuName + j).className = "sd02";
            document.getElementById(divName + j).style.display = "none";
        }
    }
}