document.addEventListener('keydown', function(event) {
// Check if the key pressed is the ArrowUp (38) or ArrowDown (40) key
if (event.key === 'ArrowUp' || event.key === 'ArrowDown' || event.keyCode === 38 || event.keyCode === 40) {
// Prevent the default browser action (scrolling)
event.preventDefault();
}
});