How to Add Progress Bar on Page Load?

Hello some one can help me pls

I do have a form loading into a website but it take few secons, that could get customer go awaybefore form is completely loaded.

I saw prevoius topics but I do not know how to include progrss bar html into the form html to be just one thing and once the form is loaded the progrees bar disappers

The web page where the form loads is the following

http://www.certificazione-ape.com/#!costo-ape/c1kjt

and the html form code i that one (where the progress bar html code should be included)

 

 

    <iframe

      id="JotFormIFrame"

      onDISABLEDload="window.parent.scrollTo(0,0)"

      allowtransparency="true"

      src="https://form.jotform.com/53005659523959"

      frameborder="0"

      style="width:100%;

      height:514px;

      border:none;"

      scrolling="no">

    </iframe>

    <script type="text/javascript">

      window.handleIFrameMessage = function(e) {

        var args = e.data.split(":");

        var iframe = document.getElementById("JotFormIFrame");

        if (!iframe)

          return;

        switch (args[0]) {

          case "scrollIntoView":

            iframe.scrollIntoView();

            break;

          case "setHeight":

            iframe.style.height = args[1] + "px";

            break;

          case "collapseErrorPage":

            if (iframe.clientHeight > window.innerHeight) {

              iframe.style.height = window.innerHeight + "px";

            }

            break;

          case "reloadPage":

            window.location.reload();

            break;

        }

        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;

        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {

          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};

          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");

        }

      };

      if (window.addEventListener) {

        window.addEventListener("message", handleIFrameMessage, false);

      } else if (window.attachEvent) {

        window.attachEvent("onmessage", handleIFrameMessage);

      }

      if(window.location.href && window.location.href.indexOf("?") > -1) {

        var ifr = document.getElementById("JotFormIFrame");

        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);

        if(ifr && get.length > 0) {

          var src = ifr.src;

          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;

          ifr.src = src;

        }

      }

      </script>

 

THANKS TO HELP ME 

Hi,

 

I noticed that you have created separate thread for the same issue. We will attend to your concern on your other thread. Please check it here: http://www.jotform.com/answers/708561. We will attend to your concern on that thread accordingly.

 

Do let us know if you need further assistance.
Regards.