function GtagBody(gtagID) {
    return EzElm('noscript')
    .EzAppend(
      EzElm('iframe',[['src',"https://www.googletagmanager.com/ns.html?id=GTM-"+ gtagID],['height','0'],['width','0'],['style','display:none;visibility:hidden']])
      );
  }

  document.body.appendChild(GtagBody('WT3RNP7'));
  const bodyClass = (window.location.hostname.split('.')[2] & window.location.hostname.split('.')[0].match('www')) ? window.location.hostname.split('.')[0] : window.location.hostname.split('.').reverse()[1];
  console.log(bodyClass);
  document.body.setAttribute('class',bodyClass);