document.getElementById('uploadLogo').addEventListener('change', function(event) {
const file = event.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = function(e) {
let logo = document.createElement("img");
logo.id = "logo-preview";
logo.src = e.target.result;
document.getElementById('logo-container').appendChild(logo);
logo.style.display = 'block';
};
reader.readAsDataURL(file);
