remy

var iframedelay = (function () {
  var iframedelay = { active : false },
      iframe = document.createElement('iframe'),
      doc,
      callbackName = '__callback' + (+new Date);

  iframe.style.height = iframe.style.width = '1px';
  iframe.style.visibility = 'hidden';
  document.body.appendChild(iframe);
  doc = iframe.contentDocument || iframe.contentWindow.document;