// JavaScript Document
function sub_menu(dep, nav, blockquote) {
    var nav_zzjs = document.getElementById(dep).childNodes;
    for (var i = 0; i < nav_zzjs.length; i++) {
        if (nav_zzjs[i].className == "quiz_dep_li") {
            nav_zzjs[i].onmouseover = function () { fnNav(this, "block") };
            nav_zzjs[i].onmouseout = function () { fnNav(this, "none") };
        }
    }
    var shu_zzjs = document.getElementById(nav).childNodes;
    for (var i = 0; i < shu_zzjs.length; i++) {
        if (shu_zzjs[i].className == "shu_menu") {
            shu_zzjs[i].onmouseover = function () { fnNav(this, "block") };
            shu_zzjs[i].onmouseout = function () { fnNav(this, "none") };
        }
    }
    function fnNav(obj, flag) {
        obj.getElementsByTagName(blockquote)[0].style.display = flag;
    }
}