function aboutus_lm() {
    window.open("http://www.ndoorsgames.com/Home/AboutUs", 'center');
}

function contact_us() {
    window.open("http://www.ndoorsgames.com/Home/ContactUs", 'center');
}

function privacy_policy() {
    window.open("http://www.ndoorsgames.com/Home/PrivacyPolicy", 'center');
}

function terms_of_agreement() {
    window.open("http://www.ndoorsgames.com/Home/TermsOfAgreement", 'center');
}

function facebook_login() {
    var host = "http";
    if (parent.document.URL.indexOf("https") > -1) {
        host = "https";
    }
    setPopup("facebook", host + "://sign.ndoorsgames.com/Auth/FaceBookLogin", 500, 300, "no");
    //window.open("http://sign.ndoorsgames.com/Auth/FaceBookLogin", 'facebook');
}

function setPopup(name, url, width, height, scrollbars) {
    var screenWidth = screen.availWidth;
    var screenHeight = screen.availHeight;
    var left = (screenWidth - width) / 2;
    var top = (screenHeight - height) / 2;
    var width = width;
    var height = height;
    var directories = "no";
    var location = "no";
    var menubar = "no";
    var scrollbars = scrollbars;
    var status = "no";
    var resizable = "no";
    var toolbar = "no";

    var features =
        "modal"
        + ",left=" + left
        + ",top=" + top
        + ",width=" + width
        + ",height=" + height
        + ",directories=" + directories
        + ",location=" + location
        + ",menubar=" + menubar
        + ",scrollbars=" + scrollbars
        + ",status=" + status
        + ",resizable=" + resizable
		;
    try {
        window.open(url, name, features);
    } catch (e) {
    }
}