// JavaScript Document
//菜单控制
function menu(j,Url) {
    if (j == 0) {
        SetCookie("MenuId", j);
        window.location.href = Url;
    }
    else {
        for (var i = 1; i <= 3; i++) {
            document.getElementById("submenu_" + i).style.display = "none";
            document.getElementById("menu_" + i).className = "";
        }
        document.getElementById("submenu_" + j).style.display = "block";
        document.getElementById("menu_" + j).className = "hover";
        SetCookie("MenuId", j);
    }
}
function SetCookie(name, value) {
    var expdate = new Date();
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;
    var path = "/";
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    if (expires != null)
        expdate.setTime(expdate.getTime() + (expires * 1000));
    document.cookie = name + "=" + escape(value) + ((expires == null) ? "" : ("; expires=" + expdate.toGMTString()))
            + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain))
            + ((secure == true) ? "; secure" : "");
}

function GetCookie(name)
//获得Cookie的原始值
{
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
            return GetCookieVal(j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break;
    }
    return null;
}

function GetCookieVal(offset)
//获得Cookie解码后的值
{
    var endstr = document.cookie.indexOf(";", offset);
    if (endstr == -1)
        endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}