function GetXmlHttpObject(){ 
	var objXMLHttp=null
	if (window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest();
	}
	else if (window.ActiveXObject){			
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}


	return objXMLHttp;
}	

function makePOSTRequest(url, parameters) {
  http_request = false;
 http_request=GetXmlHttpObject()
 if (http_request==null)
  {
  alert ("Browser does not support HTTP Request")
  return
  } 
  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("risultati").innerHTML = result;
		//alert(result);
     } else {
        alert('There was a problem with the request.');
     }
  }
}
function get(type, id_articolo, manuale) {
	var poststr = "";
	poststr = "type="+type+"&id_articolo="+id_articolo+"&manuale="+manuale;
	makePOSTRequest('getFiles.php', poststr);
}