var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

// valida la data
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		//alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}

// valda la mail
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}

function verifica_info_it()
{
  var emailID=document.frm_info.email
  if(document.frm_info.nome.value == "" )
	alert ("Il campo nome non è stato riempito");
  else if(document.frm_info.cognome.value == "" )
	alert ("Il campo cognome non è stato riempito");
  else if(emailID.value == "")
	alert ("Inserite il vostro indirizzo email");
  else if (echeck(emailID.value)==false)
	alert ("Inserite un indirizzo email valido");
  else if(document.frm_info.accettazione_trattamento_dati.value != "Si" )
	alert ("E' necessario accettare l'informativa sulla privacy per proseguire");
  else
    document.frm_info.submit();
}


function verifica_info_en()
{
  var emailID=document.frm_info.email
  if(document.form1.nome.value == "" )
	alert ("Please fill into all required fields");
  else if(document.frm_info.cognome.value == "" )
	alert ("Please fill into all required fields");
  else if(emailID.value == "")
	alert ("Please submit a valid email address");
  else if (echeck(emailID.value)==false)
	alert ("Please submit a valid email address");
  else if(document.frm_info.info_richieste.value == "" )
	alert ("Please fill into all required fields");
  else
    document.frm_info.submit();
}


function verifica_info_de()
{
  var emailID=document.frm_info.email
  if(document.frm_info.nome.value == "" )
	alert ("Das Namensfeld ist obligatorisch");
  else if(document.frm_info.cognome.value == "" )
	alert ("Das Zustandfeld ist obligatorisch");
  else if(emailID.value == "")
    alert ("Geben Sie Ihre E-mail Adresse ein");
  else if (echeck(emailID.value)==false)
    alert ("Geben Sie eine gültige E-mail Adresse ein");
  else if(document.frm_info.info_richieste.value == "" )
	alert ("Das Feld für Anfragen ist obligatorisch");
  else if(document.frm_info.accettazione_trattamento_dati.value != "Si" )
	alert ("E' necessario consentire il trattamento dei dati per proseguire");
  else
    document.frm_info.submit();
}