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) 
	 {
		result = http_request.responseText;
		document.getElementById('infoFormContainer').innerHTML = result;            
	 }
	 else
	 {
		alert("Connection error");
	 }
  }
}

function get(obj, errorMessage) 
{
  var err = false;
  if(Trim(document.getElementById("name").value).length==0) err=true;
  if(Trim(document.getElementById("surname").value).length==0) err=true;
  if(Trim(document.getElementById("email").value).length==0) err=true;
  if(window.document.getElementById("accettoInformativa").checked !="1"){ 
		err=true;
	} 
  
  if(err)
  {
	  alert(errorMessage);
	  return;
  }
	
  var poststr = "name=" + encodeURI(document.getElementById("name").value) + 
				"&surname=" + encodeURI(document.getElementById("surname").value) + 
				"&reference=" + encodeURI(document.getElementById("reference").value) + 
				"&email=" + encodeURI(document.getElementById("email").value) + 
				"&phone=" + encodeURI(document.getElementById("phone").value) + 
				"&testo=" + encodeURI(document.getElementById("testo").value) + 
				"&requireInfo-numpeople=" + encodeURI(document.getElementById("requireInfo-numpeople").value) + 
				"&requireInfo-arrivaldate=" + encodeURI(document.getElementById("requireInfo-arrivaldate").value) + 
				"&requireInfo-departuredate=" + encodeURI(document.getElementById("requireInfo-departuredate").value); 
				
  makePOSTRequest('sendInfoRequest.php', poststr);
}