function IframeAjax(){
      var xmlHttp;
      try{      
            xmlHttp=new XMLHttpRequest();// Firefox, Opera 8.0+, Safari
      }
      catch (e){
            try{
                  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); // Internet Explorer
            }
            catch (e){
                try{
                        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
                  }
                  catch (e){
                        //alert("No IframeAjax!?");
                        return false;
                  }
            }
      }

      xmlHttp.onreadystatechange=function(){
      if(xmlHttp.readyState==4){
            document.getElementById('ajaxloader').innerHTML=xmlHttp.responseText;
            setTimeout('IframeAjax()',2000);
      }
      }
      xmlHttp.open("POST","include/totale_minimo.asp?rnd="+Math.random(),true);
      xmlHttp.send(null);
      }

      window.onload=function(){
      setTimeout('IframeAjax()',2000);
      }