function BgOperation(str,params){
	var xmlHttp;
	try{
	   xmlHttp=new XMLHttpRequest();
	}
	catch (e){
	   try{
	       xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	   }
	   catch (e){
	       try{
	           xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	       }
	       catch (e){
	           alert("Your browser does not support AJAX!");
	           return false;
	       }
	   }
	}
	xmlHttp.onreadystatechange=function(){
	   if(xmlHttp.readyState==4){
	       BgResponse(xmlHttp.responseText);
	   }
	}
	xmlHttp.open("POST",str,true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", params.length);
	xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(params);
}
function GetParams(idform){
   var param='';
   for(var i=0;i<document.getElementById(idform).length;i++){
       if(i>0)param+='&';
       if(document.getElementById(idform).elements[i].type=='hidden')param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       if(document.getElementById(idform).elements[i].type=='text')param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       if(document.getElementById(idform).elements[i].type=='password')param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       if(document.getElementById(idform).elements[i].type=='select')param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       if(document.getElementById(idform).elements[i].type=='file')param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       if(document.getElementById(idform).elements[i].type=='select-one'){
           param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
       }
       if(document.getElementById(idform).elements[i].type=='checkbox'){
           if(document.getElementById(idform).elements[i].checked)param+=document.getElementById(idform).elements[i].name+'='+escape(document.getElementById(idform).elements[i].value);
           else param+=document.getElementById(idform).elements[i].name+'=0';
       }
   }
   return param;
}
function BgResponse(InStr){
	if (InStr == "0") {
		document.getElementById('check').innerHTML="Errore nell'Utente e/o Password, controllare i dati e riprovare.";
		document.getElementById('idformlogin').elements['utentenome'].value = "";
		document.getElementById('idformlogin').elements['utentepassword'].value = "";
		document.getElementById('formbutton').value=" ACCEDI ";
		document.getElementById('formbutton').onClick = "Save();";
	 	document.getElementById('formbutton').className="bottone";
	 	document.getElementById('idformlogin').elements['utentenome'].className="campi";
	 	document.getElementById('idformlogin').elements['utentenome'].readOnly=false;
	 	document.getElementById('idformlogin').elements['utentepassword'].className="campi";
	 	document.getElementById('idformlogin').elements['utentepassword'].readOnly=false;
	} else {
		location.href="areariservatahome.php";
	}
}