function show_hint ( p_hint_text, p_span ) {
  document.getElementById(p_span).innerHTML = 'Poczekaj, trwa ładowanie...';
  }
     var http_request = false;
   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('myspan').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   
function get2(obj) {
var getstr = '';
var url = document.getElementById('url').value;

if (document.getElementById("name").value !== '') {
getstr += "&name" + "=" + encodeURIComponent(document.getElementById("name").value);
}

if (document.getElementById("text").value !== '') {
getstr += "&text" + "=" + encodeURIComponent(document.getElementById("text").value);
}

if (document.getElementById("email").value !== '') {
getstr += "&email" + "=" + encodeURIComponent(document.getElementById("email").value);
}
if (document.getElementById("phone").value !== '') {
getstr += "&phone" + "=" + encodeURIComponent(document.getElementById("phone").value);
}
if (document.getElementById("who").value !== '') {
getstr += "&who" + "=" + encodeURIComponent(document.getElementById("who").value);
}
if (document.getElementById("nip").value !== '') {
getstr += "&nip" + "=" + encodeURIComponent(document.getElementById("nip").value);
}
if (document.getElementById("city").value !== '') {
getstr += "&city" + "=" + encodeURIComponent(document.getElementById("city").value);
}
if (document.getElementById("codeci").value !== '') {
getstr += "&codeci" + "=" + encodeURIComponent(document.getElementById("codeci").value);
}
if (document.getElementById("cowho").value !== '') {
getstr += "&cowho" + "=" + encodeURIComponent(document.getElementById("cowho").value);
}

makePOSTRequest(url, getstr);
}