function encode_cookie(cookie_value) {

    var coded_string = ""
    for (var counter = 0; counter < cookie_value.length; counter++) {

        coded_string += cookie_value.charCodeAt(counter);
        if (counter < cookie_value.length - 1) {
            coded_string += "+"
        }
    }
    return coded_string
}
function decode_cookie(coded_string) {

    var cookie_value = "";
    var code_array = coded_string.split(" ");

    for (var counter = 0; counter < code_array.length; counter++) {
        cookie_value += String.fromCharCode(code_array[counter]);
    }
    return cookie_value
}