function loadJSON(path, success, error) {
  var xhr = new XMLHttpRequest();
  xhr.onreadystatechange = function () {
    if (xhr.readyState === 4) {
      if (xhr.status === 200) {
        success(JSON.parse(xhr.responseText));
      }
      else {
        error(xhr);
      }
    }
  };
  xhr.open('GET', path, true);
  xhr.send();
}

loadJSON("https://dtf.ru/vote/get_likers?id=1445267&type=1&mode=raw", getRandom,'jsonp');

function getRandom(data)
{
	const values = Object.values(data.data.likers)
	const randomValue = values[parseInt(Math.random() * values.length)]
	console.log('Победитель:')
	console.log(randomValue.user_name)
	console.log(randomValue.user_url)
}