root = document.getElementById("even3-widget-speaker");

  if (root == null) {
    alert("Div even3-widget-speaker not found");
  } else {
    root.setAttribute("style", "width:100%;");
    ifrm = document.createElement("IFRAME");
    ifrm.setAttribute("src", "https://www.even3.com.br/widget/index?evento=iv_epava&type=speaker&lang=pt");
    ifrm.setAttribute("id", "even3_speaker");
    ifrm.setAttribute("frameborder", "0");
    ifrm.setAttribute("vspace", "0");
    ifrm.setAttribute("hspace", "0");
    ifrm.setAttribute("marginheight", "0");
    ifrm.setAttribute("marginwidth", "5");
    ifrm.setAttribute("width", "100%");
    root.appendChild(ifrm);
  }

  if (typeof iFrameResize == 'undefined') {

    var scr = document.createElement('script'),
      head = document.head || document.getElementsByTagName('head')[0];
    scr.src = 'https://cdnjs.cloudflare.com/ajax/libs/iframe-resizer/4.3.6/iframeResizer.min.js';
    scr.async = false;

    scr.onload = function () {
      iFrameResize({
        scrolling: 'no',
        checkOrigin: false,
        log: false,
        minHeight: 200,
        heightCalculationMethod: 'bodyOffset',
        initCallback: function (iframe) {
        },
        onMessage: function (messageData) {
          document.getElementById('even3_speaker').style.minHeight = messageData.message + 'px';
        },
      }, '#even3_speaker');
    };
    head.insertBefore(scr, head.firstChild);
  } else {
    iFrameResize({
      scrolling: 'no',
      checkOrigin: false,
      log: false,
      minHeight: 200,
      heightCalculationMethod: 'bodyOffset',
      initCallback: function (iframe) {
      },
      onMessage: function (messageData) {
        document.getElementById('even3_speaker').style.minHeight = messageData.message + 'px';
      },
    }, '#even3_speaker');
  }