function submit(FILE, METHOD, formname, dividname){
	
	var num = document.forms[formname].elements.length;
	var url = "";

	for (var i = 0; i < num; i++){
		
		var chiave = document.forms[formname].elements[i].name;
		var valore = document.forms[formname].elements[i].value;

		if (chiave == "submit"){}
		else {
			url += chiave + "=" + valore + "&";
		}
	}
	var parameters = url;
	url = FILE + "?" + url;
	if (METHOD == undefined) { METHOD = "GET"; 	}
	if (METHOD == "GET") { ahah(url, dividname, '', METHOD); }
	else { ahah(FILE, dividname, '', METHOD, parameters); }

}

function ahah(url, target, delay, method, parameters) {

  if (method == undefined) { 
	  document.getElementById(target).innerHTML = 'caricamento dati in corso...';
	  if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	  } else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	  }
	  if (req) {
		req.onreadystatechange = function() {
			ahahDone(url, target, delay, method, parameters);
		};
		req.open("GET", url, true);
		req.send("");
	  }  
  }
  if ( (method == "GET") || (method == "get") )
  {
	  document.getElementById(target).innerHTML = 'caricamento dati in corso...';
	  if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	  } else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	  }
	  if (req) {
		req.onreadystatechange = function() {
			ahahDone(url, target, delay, method, parameters);
		};
		req.open(method, url, true);
		req.send("");
	  }
  }

  if ( (method == "POST") || (method == "post") )
  {
	  document.getElementById(target).innerHTML = 'caricamento dati in corso...';
	  if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	  } else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	  }
	  if (req) {
		req.onreadystatechange = function() {
			ahahDone(url, target, delay, method, parameters);
		};
		req.open(method, url, true);
		req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		req.send(parameters);
	  }
  }
}  

function ahahDone(url, target, delay, method, parameters) {
  if (req.readyState == 4) { 
    if (req.status == 200) { 
      document.getElementById(target).innerHTML = req.responseText;
    } else {
      document.getElementById(target).innerHTML="ahah error:\n"+req.statusText;
    }
  }
}