var downloadButton = document.getElementById(“download”);
var counter = 10;
var newElement = document.createElement(“p”);
newElement.innerHTML = “You can download the file in 10 seconds.”;
var id;
downloadButton.parentNode.replaceChild(newElement, downloadButton);
id = setInterval(function() {
counter–;
if(counter < 0) { newElement.parentNode.replaceChild(downloadButton, newElement); clearInterval(id); } else { newElement.innerHTML = "You can download the file in " + counter.toString() + " seconds."; }}, 1000);