$(document).ready(function() {

    $('#nav ul li ul').hide();

    if (jQuery.url.param("menu")) {
        var menu = jQuery.url.param("menu");
        SetCookie(menu, '' + menu + '', '');
    }
   
    $("a[id^='A']").each(function(i) {
        var cookiename = jQuery.trim($(this).attr("id"));
        found = GetCookie(cookiename);
        if (found != null) {
            // alert('cookiename  ' + cookiename + " value= " + found);
            var index = found.split('A')[1] - 1;
            var str = "eq(" + index + ")";
            //  alert(' get ' + cookiename + ' i ' + str);
            $("#nav ul li ul:" + str).show();
        }
    });

    $("a[id^='A']").bind("click", function(e) {
        var menu = $(this).attr("id");
        $(this).attr("href", $(this).attr("href") + "?menu=" + $(this).attr("id"));
        SetCookie(menu, '' + menu + '', '');

    });
});

function SetCookie(name, value, expires, path, domain, secure) {
    document.cookie = name + "=" + escape(value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

function getCookieVal(offset) {
    var endstr = document.cookie.indexOf(";", offset);
    if (endstr == -1) { endstr = document.cookie.length; }
    return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie(name) {
    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;
}