<img src="/media/images/resort/1.jpg" id="img-1">
<img src="/media/images/resort/2.jpg" id="img-2">
<img src="/media/images/resort/3.jpg" id="img-3">
<img src="/media/images/resort/4.jpg" id="img-4">
<img src="/media/images/resort/5.jpg" id="img-5">
let images = document.body.querySelectorAll(`img`);
document.addEventListener(`keydown`, event => {
let index = +String.fromCharCode(event.which) - 1;
if (index < 5) {
images[index].style.display = `block`;
}
}, false);