// JavaScript Document
function a(str) { return document.getElementById(str); }
function aa(str) { return document.getElementsByTagName(str); }
var timer;
function changeMenu(thisObj, num) {
    if (thisObj.className == "over") return false;
    hids(thisObj);
    thisObj.className = "over";
   a("c" + (num + 1)).className = "block";
    a("c" + (num + 1)).onmouseover = function () { clearTimeout(timer); }
    a("c" + (num + 1)).onmouseout = function () { timer = setTimeout(function () { hids(thisObj); }, 500) }
    thisObj.onmouseout = function () { timer = setTimeout(function () { hids(thisObj); }, 3000) }
}
function hids(thisObj) {
    clearTimeout(timer);
    var tabObj = thisObj.parentNode.getAttribute("id");
    var obj_dt = a(tabObj).getElementsByTagName("dt");
    for (var i = 0; i < obj_dt.length; i++) {
        obj_dt[i].className = "normal";
        a("c" + (i + 1)).className = "none";
    }
}