var http = false;
if (window.XMLHttpRequest) {
	http = new XMLHttpRequest();
} else if (window.ActiveXObject) {
	http = new ActiveXObject("Microsoft.XMLHTTP");
}
		var statusText = new Array();
		statusText[100] = "Continue";
		statusText[101] = "Switching Protocols";
		statusText[200] = "OK";
		statusText[201] = "Created";
		statusText[202] = "Accepted";
		statusText[203] = "Non-Authoritative Information";
		statusText[204] = "No Content";
		statusText[205] = "Reset Content";
		statusText[206] = "Partial Content";
		statusText[300] = "Multiple Choices";
		statusText[301] = "Moved Permanently";
		statusText[302] = "Found";
		statusText[303] = "See Other";
		statusText[304] = "Not Modified";
		statusText[305] = "Use Proxy";
		statusText[306] = "(unused, but reserved)";
		statusText[307] = "Temporary Redirect";
		statusText[400] = "Bad Request";
		statusText[401] = "Unauthorized";
		statusText[402] = "Payment Required";
		statusText[403] = "Forbidden";
		statusText[404] = "Not Found";
		statusText[405] = "Method Not Allowed";
		statusText[406] = "Not Acceptable";
		statusText[407] = "Proxy Authentication Required";
		statusText[408] = "Request Timeout";
		statusText[409] = "Conflict";
		statusText[410] = "Gone";
		statusText[411] = "Length Required";
		statusText[412] = "Precondition Failed";
		statusText[413] = "Request Entity Too Large";
		statusText[414] = "Request-URI Too Long";
		statusText[415] = "Unsupported Media Type";
		statusText[416] = "Requested Range Not Satisfiable";
		statusText[417] = "Expectation Failed";
		statusText[500] = "Internal Server Error";
		statusText[501] = "Not Implemented";
		statusText[502] = "Bad Gateway";
		statusText[503] = "Service Unavailable";
		statusText[504] = "Gateway Timeout";
		statusText[505] = "HTTP Version Not Supported";
		statusText[509] = "Bandwidth Limit Exceeded";
function rc_post(idget){
	
	var num = document.getElementById(idget).elements.length;
	var url = "";

	//radio button 
	var j = 0;
	var a = 0;
	var radio_buttons = new Array();
	var nome_buttons = new Array();
	var the_form = window.document.getElementById(idget);
	for(var i=0; i<the_form.length; i++){
		var temp = the_form.elements[i].type;
		if ( (temp == "radio") && ( the_form.elements[i].checked) ) { 
			nome_buttons[a] = the_form.elements[i].name;
			radio_buttons[j] = the_form.elements[i].value; 
			j++; 
			a++;
		}
	}
	for(var k = 0; k < radio_buttons.length; k++) {
		url += nome_buttons[k] + "=" + radio_buttons[k] + "&";
	}
	//checkbox
	var j = 0;
	var a = 0;
	var check_buttons = new Array();
	var nome_buttons = new Array();
	var the_form = window.document.getElementById(idget);
	for(var i=0; i<the_form.length; i++){
		var temp = the_form.elements[i].type;
		if ( (temp == "checkbox") && ( the_form.elements[i].checked) ) { 
			nome_buttons[a] = the_form.elements[i].name;
			check_buttons[j] = the_form.elements[i].value; 
			j++; 
			a++;
		}
	}
	for(var k = 0; k < check_buttons.length; k++) {
		url += nome_buttons[k] + "=" + check_buttons[k] + "&";
	}
	for (var i = 0; i < num; i++){
		
		var chiave =document.getElementById(idget).elements[i].name;
		var valore =document.getElementById(idget).elements[i].value;
		var tipo =document.getElementById(idget).elements[i].type;

		if ( (tipo == "submit") || (tipo == "radio") || (tipo == "checkbox") ){}
		else {
			url += chiave + "=" + valore + "&";
		}
	}
	return url;
}
function ajax(action,target,get,idform,noimage) {
	noimage = noimage || 0
	if (!get) get="GET";
	parameters="";
	get=get.toUpperCase();
	if (noimage==0) document.getElementById(target).innerHTML = '<p align="center"><img border="0" src="imm/ajax-loader.gif" width="15" height="15"/></p>';
if (get=="GET"){
	if(idform){
		parameters = rc_post(idform);
		action=action+"?"+parameters;
	}
    http.open(get, action);
    http.onreadystatechange = function (){
		ajaxdone(target);
	}
    http.send(null);
}
if (get=="POST"){
	parameters= rc_post(idform);
    http.open(get, action);
    http.onreadystatechange = function (){
		ajaxdone(target);
	}
	http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    http.send(parameters);	
}
}

function ajaxdone(target){
  if (http.readyState == 4) { 
  	if(statusText[http.status] === "OK") {
      document.getElementById(target).innerHTML = http.responseText;
	}else{
	//document.getElementById(target).innerHTML = "Impossibile effettuare l'operazione richiesta.<br />" +"Errore riscontrato: " + statusText[ajax.status];
	}
  }
}
//-->