cookie.js

function getCookie(name){
    var nameEQ = name + "=";
    var ca = document.cookie.split(";");
    for (var i=0; i < ca.length; i++) {
        var c = ca[i];
        while(c.charAt(0) === " ") c = c.substr(1, c.length);
        if(c.indexOf(nameEQ) === 0) return c.substr(nameEQ.length, c.length)
    }
    return null
}


let cookieInfo = document.querySelector(".cookieinfo");
if(cookieInfo != null) {
    if (getCookie("cookieMessageHide") === "1") {
        cookieInfo.style.display = "none";
    } else {
        cookieInfo.style.display = "block";
    }

    document.querySelector(".cookieinfo-close").onclick = function() {
        console.log("close");
        document.cookie = "cookieMessageHide=1";
        cookieInfo.style.display = "none";
    }

}