想知道是否有人可以解釋這段代碼的含義。不同的界限意味着什麼?代碼解釋js
function overlay(theTitle) {
el = document.getElementById("overlay");
el.style.visibility = (el.style.visibility == "visible") ? "hidden" : "visible";
el.innerHTML = theTitle;
}
function vindu(){
el=document.getElementById("vindu");
el.style.visibility=(el.style.visibility=="visible")?"hidden":"visible";
}