function CreateBookmarkLink() {
    var url = location.href;
    var title = "My favourite";
    if (window.sidebar) { // firefox
        window.sidebar.addPanel(title, url, "");
    } else if (document.all) { //MSIE
        window.external.AddFavorite(url, title);
    } else {
        alert("Sorry, your browser doesn't support this");
    }
}

function toppage()
{ window.scrollTo(0, 0); }

function ShowPopupForm(navigationURL) {
    var oWnd = window.radopen(navigationURL, "rdw");
    oWnd.setSize(720, 400);
    oWnd.center();
    return false;
}

function ShowSendToFriendForm(navigationURL) {
    var oWnd = window.radopen(navigationURL, "rdwSendToFriend");
    oWnd.setSize(720, 550);
    oWnd.center();
    return false;
}

function ShowFeedbackForm(navigationURL) {
    var oWnd = window.radopen(navigationURL, "rdwFeedback");
    oWnd.setSize(720, 650);
    oWnd.center();
    return false;
}

function roll_over(img_src) {
    document.img_name.src = img_src;
    document.getElementById("imgmain").href = img_src;
}
function showDatevivn() {
    var strdate;
    var dt = new Date();
    var strarrDay = new Array("Chủ nhật", "Thứ hai", "Thứ ba", "Thứ tư", "Thứ năm", "Thứ sáu", "Thứ bảy");
    var strarrMonth = new Array("01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12");
    var strThu = dt.getDay();
    strThu = strarrDay[strThu] + ", ";
    var strDay = dt.getDate();
    if (strDay < 10) strDay = "0" + strDay
    var strMonth = dt.getMonth();
    strMonth = strarrMonth[strMonth];
    var strYears = dt.getYear();
    if (strYears < 1900) strYears += 1900;
    strdate = strThu + " " + strDay + "/" + strMonth + "/" + strYears
    window.document.write(strdate);
}

function showDateenus() {
    var strdate;
    var dt = new Date();
    var strarrDay = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
    var strarrMonth = new Array("01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12");
    var strThu = dt.getDay();
    strThu = strarrDay[strThu] + ", ";
    var strDay = dt.getDate();
    if (strDay < 10) strDay = "0" + strDay
    var strMonth = dt.getMonth();
    strMonth = strarrMonth[strMonth];
    var strYears = dt.getYear();
    if (strYears < 1900) strYears += 1900;
    strdate = strThu + " " + strMonth + "/" + strDay + "/" + strYears
    window.document.write(strdate);
}