function cambiapagina(dati){
 if(dati == 'chisiamo'){
    var getURL = 'include/chisiamo.php';
  } else if(dati == 'home'){
    var getURL = 'include/content.php';
  } else if(dati == 'servizi'){
    var getURL = 'include/servizi.php';
  } else if(dati == 'produzioni'){
    var getURL = 'include/produzioni.php';
  } else if(dati == 'attrezzatura'){
    var getURL = 'include/attrezzatura.php';
  } else if(dati == 'noleggio'){
    var getURL = 'include/noleggio.php';
  } else if(dati == 'contatti'){
    var getURL = 'include/contatti.php';
  } else { }


  var xmlHttp = false;
  xmlHttp = createXMLHttpRequest();
  xmlHttp.onreadystatechange=function(){handleStateChange(xmlHttp,dati);}
  xmlHttp.open("GET", getURL ,true);
  xmlHttp.send(null);
}

function handleStateChange(xmlHttp,dati){
  if(xmlHttp.readyState == 4){
    var elem = document.getElementById('content');
//v    elem.parentNode.removeChild(elem);
    document.getElementById("content").innerHTML = xmlHttp.responseText;
  }
}

function createXMLHttpRequest() {
  var xmlHttp = false;
  if(window.ActiveXObject) {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else if(window.XMLHttpRequest) {
    xmlHttp = new XMLHttpRequest();
  } else {
    alert("Please upgrade your browser!  Your browser does not support AJAX!");
  }
  return xmlHttp;
}