add close button on above header ads

(function () {
    document.addEventListener('DOMContentLoaded', function () {
        var container = document.querySelector('.jnews_header_top_ads');
        if (!container) {
            return;
        }
        var wrapper = container.querySelector('.ads-wrapper');
        if (!wrapper) {
            return;
        }
        var closeButton = document.createElement('span');
        closeButton.textContent = '\u00D7';
        closeButton.className = 'close-ad-button';
        wrapper.style.position = 'relative';
        wrapper.appendChild(closeButton);
        closeButton.addEventListener('click', function (e) {
            e.preventDefault();
            var adContainer = closeButton.closest('.jnews_header_top_ads');
            if (adContainer) {
                adContainer.remove();
            }
        });
    });
})();