const im = new Image(320,50);
  im.src='https://ab3786e0-ca50-4618-b0cd-833e2a82a43e.adsfirewall.net/creative?w=320&h=50&c=cocacola';
  if( document.getElementById("creative") )
    document.getElementById("creative").appendChild(im);
  else
    document.body.appendChild(im);