function CaricaFoto(img){
  foto1= new Image();
  foto1.src=(img);
  Controlla(img);
}
function Controlla(img){
  if((foto1.width!=0)&&(foto1.height!=0)){
    viewFoto(img);
  }
  else{
    funzione="Controlla('"+img+"')";
    intervallo=setTimeout(funzione,20);
  }
}
function viewFoto(img){
  //largh=foto1.width+30;
  // altez=foto1.height+40;
  // stringa="scrollbars=yes,resizable=1,width="+largh+",height="+altez;
  largh=foto1.width+20;
  altez=foto1.height+20;
  stringa="scrollbars=no,resizable=0,width="+largh+",height="+altez;
  finestra=window.open(img,"IMGWIN",stringa);
}


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 strDay=dtStr.substring(0,pos1)
	var strMonth=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 : dd/mm/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;
}



     function IsFutureDate( str1 )
     {
          // Parse the string in DD/MM/YYYY format
          re = /(\d{1,2})\/(\d{1,2})\/(\d{4})/
          var arr = re.exec( str1 );
          var dt1 = new Date(parseInt(arr[3]), parseInt(arr[2], 10) - 1, parseInt(arr[1], 10)+1 );

          return dt1 >= new Date();
     }

function isEmpty(strng) {

 if (strng.value == "") {
    return true;
 }
 }

 function IsValidTime(timeStr) {
// Checks if time is in HH:MM:SS AM/PM format.
// The seconds and AM/PM are optional.

var timePat = /^(\d{1,2}):(\d{2})$/;

var matchArray = timeStr.match(timePat);
if (matchArray == null) {
alert("Time is not in a valid format.");
return false;
}
hour = matchArray[1];
minute = matchArray[2];
if (hour < 0  || hour > 23) {
alert("Hour must be between 0 to 23");
return false;
}

if (minute<0 || minute > 59) {
alert ("Minute must be between 0 and 59.");
return false;
}
return false;
}


 function checkLen(strng, low, high){
 if ((strng.value.length < low) || (strng.value.length > high)) {
    return true;
}
}

function illegal(strng)
{
var illegalChars = /\W/;
  // allow only letters, numbers, and underscores
    if (illegalChars.test(strng.value)) {
       return true;
    }
}


function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;

	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}

	return result;
}

function validEmail(str)
{
  // are regular expressions supported?
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported)
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  //var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,10}|[0-9]{1,10})(\\]?)$");

  return (!r1.test(str) && r2.test(str));


}




function validContact(strng)
{
var stripped = strng.value.replace(/[\(\)\.\-\ ]/g, '');
//strip out acceptable non-numeric characters
if (isNaN(parseInt(stripped))) {
    return true;
}
}

function checkDropdown(choice) {
    if (choice == 0) {
		return true;
    }
}


function emailCheck (emailStr) {
var checkTLD=1;


var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
var emailPat=/^(.+)@(.+)$/;
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
var validChars="\[^\\s" + specialChars + "\]";
var quotedUser="(\"[^\"]*\")";
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
var atom=validChars + '+';
var word="(" + atom + "|" + quotedUser + ")";
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
var matchArray=emailStr.match(emailPat);
if (matchArray==null) {
return false;
}

var user=matchArray[1];
var domain=matchArray[2];

for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
return false;
   }
}
if (user.match(userPat)==null) {
alert("The username doesn't seem to be valid.");
return false;
}
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
return false;
   }
}
return true;
}

var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
return false;
   }
}


if (checkTLD && domArr[domArr.length-1].length!=2 &&
domArr[domArr.length-1].search(knownDomsPat)==-1) {
return false;
}


if (len<2) {
return false;
}
return true;
}    

function checkCreditCard(cardNumber, cardType)
{
   var isValid = false;
   var ccCheckRegExp = /[^\d ]/;
   isValid = !ccCheckRegExp.test(cardNumber);
   if(isValid)
   {
      var cardNumbersOnly = cardNumber.replace(/ /g,"");
      var cardNumberLength = cardNumbersOnly.length;
      var lengthIsValid = false;
      var prefixIsValid = false;
      var prefixRegExp;

      switch(cardType)
      {
         case "MASTER":
            lengthIsValid = (cardNumberLength == 16);
            prefixRegExp = /^5[1-5]/;
            break;

         case "VISA":
            lengthIsValid = (cardNumberLength == 16 || cardNumberLength == 13);
            prefixRegExp = /^4/;
            break;

         case "AMEX":
            lengthIsValid = (cardNumberLength == 15);
            prefixRegExp = /^3(4|7)/;
            break;

         case "DINERS":
            lengthIsValid = (cardNumberLength == 14);
            prefixRegExp = /^3(0[0-5]|6|8)/;

         case "JCB":
				return true;
         case "OTHER":
				return true;

         default:
            prefixRegExp = /^$/;
            alert("Card type not found");
      }

      prefixIsValid = prefixRegExp.test(cardNumbersOnly);
      isValid = prefixIsValid && lengthIsValid;
   }
	if (isValid)
   {
      var numberProduct;
      var numberProductDigitIndex;
      var checkSumTotal = 0;

      for (digitCounter = cardNumberLength - 1;
         digitCounter >= 0;
         digitCounter--)
      {
         checkSumTotal += parseInt (cardNumbersOnly.charAt(digitCounter));
         digitCounter--;
         numberProduct = String((cardNumbersOnly.charAt(digitCounter) * 2));
         for (var productDigitCounter = 0;
               productDigitCounter < numberProduct.length;
               productDigitCounter++)
         {
            checkSumTotal += parseInt(numberProduct.charAt(productDigitCounter));
         }
      }
      isValid = (checkSumTotal % 10 == 0);
   }
  return isValid;
}


function checkNumeric(objName,minval, maxval,comma,period,hyphen)
{
	var numberfield = objName;
	if (chkNumeric(objName,minval,maxval,comma,period,hyphen) == false)
	{
		numberfield.select();
		numberfield.focus();
		return false;
	}
	else
	{
		return true;
	}
}

function chkNumeric(objName,minval,maxval,comma,period,hyphen)
{
// only allow 0-9 be entered, plus any values passed
// (can be in any order, and don't have to be comma, period, or hyphen)
// if all numbers allow commas, periods, hyphens or whatever,
// just hard code it here and take out the passed parameters
var checkOK = "0123456789" + comma + period + hyphen;
var checkStr = objName;
var allValid = true;
var decPoints = 0;
var allNum = "";

for (i = 0;  i < checkStr.value.length;  i++)
{
ch = checkStr.value.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;
}
if (!allValid)
{	
alertsay = "Please enter only these values \""
alertsay = alertsay + checkOK + "\"."
alert(alertsay);
return (false);
}

// set the minimum and maximum
var chkVal = allNum;
var prsVal = parseInt(allNum);
if (chkVal != "" && !(prsVal >= minval && prsVal <= maxval))
{
alertsay = "Please enter a value greater than or "
alertsay = alertsay + "equal to \"" + minval + "\" and less than or "
alertsay = alertsay + "equal to \"" + maxval + "\"."
alert(alertsay);
return (false);
}
}

function showStatus(sMsg) {
    window.status = sMsg ;
    return true ;
}

var hasOpenPopup = 0;
// this is for opening pop-up windows
function openPopup( url, name, w, h, widgets, openerUrl )
{
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +=widgets;

	var host = location.hostname;
	if (window == top) { window.top.name = "opener"; }
	var popupWin = window.open( url, name, settings );
	if(popupWin) {hasOpenPopup = 1;}
	if ( popupWin && popupWin.opener ) {
		if ( openerUrl )
		{
			popupWin.opener.location = openerUrl;
		}
	}
	if ( popupWin) {
		popupWin.focus();
	}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}