var currentDate = new Date();

function checkCookie(cookieName) {
    var cookieValue, cookieStartsAt, cookieEndsAt;

    cookieValue = document.cookie;
    cookieStartsAt = cookieValue.indexOf(" " + cookieName + "=");
    if (cookieStartsAt === -1) {
        cookieStartsAt = cookieValue.indexOf(cookieName + "=");
    }
    if (cookieStartsAt === -1) {
        cookieValue = null;
    } else {
        cookieStartsAt = cookieValue.indexOf("=", cookieStartsAt) + 1;
        cookieEndsAt = cookieValue.indexOf(";", cookieStartsAt);

        if (cookieEndsAt === -1) {
            cookieEndsAt = cookieValue.length;
        }

        cookieValue = unescape(cookieValue.substring(cookieStartsAt, cookieEndsAt));
        return cookieValue;
    }
}

function setCookie(cookieName, cookieValue, cookieExpires) {
    cookieValue = escape(cookieValue);

    if (cookieExpires === "") {
        currentDate.setMonth(currentDate.getMonth() + 6);
        cookieExpires = currentDate.toUTCString();
    }
    document.cookie = cookieName + "=" + cookieValue + "; expires=" + cookieExpires + "; path=/";
    checkCookie(cookieName);
}

function checkCookiesEnabled() {
    setCookie("CookieMessageExist", "Exist", "");
    if (checkCookie("CookieMessageExist") === "Exist") {
        setCookie("CookieMessageExist", "Exist", "1 Jan 2000 00:00:00");
        return true;	
    }
    if (checkCookie("CookieMessageExist") !== "Exist") {
        return false;
    }
}
	
function acceptCookies() {
    document.getElementById("cookiesWarning").innerHTML = '<div class="lta-box lta-box2 lta-box-3">' + 
            '<div class="lta-box-top lta-box-t"><div class="lta-box-top-right lta-box-tr"></div></div>' + 
            '<div class="lta-box-middle lta-clear"><div class="floatleft">' +
            '<p><span>Our website uses cookies.</span></p>' +
            '<p>By continuing to use this site you are agreeing to our use of cookies. Find out more by viewing our <a href="http://www4.lta.org.uk/Footer/Privacy-Policy/">Privacy Policy</a></p>' +
            '</div><a href="#" onclick="getAgreementValue();" class="lta-btn lta-btn-alt lta-btn-4"><span>Accept and close</span></a></div>' +
            '<div class="lta-box-bottom lta-box-b"><div class="lta-box-bottom-right lta-box-br"></div></div></div>';
}

function checkCookieExist() {
    /* Uncomment when cookie warning issues sorted out */
    /*
    if (checkCookiesEnabled()) {
        if (checkCookie("CookieMessage") !== "Yes") { acceptCookies(); }
    }
    else {
        document.getElementById("cookiesWarning").innerHTML = '<div class="lta-box lta-box2">' +
                '<div class="lta-box-top"><div class="lta-box-top-right"></div></div>' +
                '<div class="lta-box-middle lta-clear"><div class="floatleft">' +
                '<p><span>Cookies are disabled on your browser</span></p>' +
                '<p>We use cookies to help improve your online experience' +
                '</div><a href="#" class="close-message lta-btn-alt"><span>Close</span></a></div>' +
                '<div class="lta-box-bottom"><div class="lta-box-bottom-right"></div></div></div>';
    }
    */
}

function getAgreementValue() {
    document.getElementById("cookiesWarning").innerHTML = "";
    setCookie("CookieMessage", "Yes", "");
    return false;
}