austinz925

(function() {
  const links = [
    { url: "https://site-A.com", w: 60 },
    { url: "https://site-B.com", w: 25 },
    { url: "https://site-C.com", w: 15 }
  ];
  let r = Math.random() * 100, c = 0, el = document.getElementById('rotator');
  if (el) {
    let selected = links.find(l => (c += l.w) >= r) || links[0];
    el.href = selected.url;