// Function to display the advertisement banner
function showAdvertisement() {
var advertisement = document.getElementById('advertisement');
advertisement.style.display = 'block';
}
// Function to hide the advertisement banner
function hideAdvertisement() {
var advertisement = document.getElementById('advertisement');
advertisement.style.display = 'none';
}
// Call the showAdvertisement function when the website is opened
window.onload = function() {
showAdvertisement();
};
