Limit file size on file input (basic javascript)

limit-file-upload.js

var imageStatus = document.getElementById('my-file-input');
// imageStatus = input[type="file"]

if (files[0].size > fileMaxSize) {
	imageStatus.innerText = 'Datoteka ne sme biti večja od 5MB!';
	imageUpload.value = '';
	var imageUploadClone = imageUpload.cloneNode(true);
	imageUpload.parentNode.replaceChild(imageUploadClone, imageUpload);
}