var defaultEmptyOK = false;
var whitespace = " \t\n\r";

//in func_gui.asp aangeven welke taal het is. (Frans)
if (_sLang == "NL") {
	mPrefix 		= 'Het veld "';
	mSuffix 		= '" is leeg.\nDit is een verplicht veld. Vul dit veld alsnog in.';
	var sErrorMessage 	= 'Het E-mailadres is geen geldig e-mailadres. Corrigeer dit aub.';
	var sRequired		= '" is verplicht.';
	var sMustBeChecked	= '" moet aangevinkt zijn.';
	var sAtLeast		= 'Er moet minimaal een ';
	var sChecked		= '" aangevinkt zijn.';
	
	var sDay			= '"Dag';
	var sMonth			= '"Maand';
	var sYear			= '"Jaar';
	var sNoDate			= 'U heeft geen juiste datum opgegeven';
	var sYearNotNumeric	= 'Jaartal is niet numeriek';
	var sYear4Numbers	= 'Jaartal dient uit 4 cijfers te bestaan';
	var sPass6Chars		= 'Uw nieuwe wachtwoord moet minstens uit 6 karakters bestaan!';
	var sPassNotSame	= 'De wachtwoorden die u heeft ingegeven zijn niet gelijk.\nGeef het wachtwoord nogmaals twee keer op.';
	var sPassNotAllowed = 'Het wachtwoord mag geen van de volgende tekens bevatten:';
} else {
	var mPrefix 		= 'The field "';
	var mSuffix 		= '" is empty.\nThis field is required. Please fill in.';
	var sErrorMessage 	= 'The email address is not valid. Please correct.';
	var sRequired		= '" is required.';
	var sMustBeChecked	= '" must be checked.';
	var sAtLeast		= 'There must be at least one "';
	var sChecked		= '" checked.';
	
	var sDay			= '"Day';
	var sMonth			= '"Month';
	var sYear			= '"Year';
	var sNoDate			= 'The dateformat is not correct';
	var sYearNotNumeric	= 'Year is not numeric';
	var sYear4Numbers	= 'Year must exist from 4 figures';
	var sPass6Chars		= 'Your password must have at least 6 characters!';
	var sPassNotSame	= 'The entered passwords are not the same. Please try again.';
	var sPassNotAllowed = 'The password can\'t contain any of these characters:';
}
//---------------------------------------------------------------------------------------

var decimalPointDelimiter = ","

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function isDigit (c)
{   return ((c >= "0") && (c <= "9"))
}

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function compareFields(field1, field2, fields) {
	if (field1.value == field2.value) {
		return true;
	} else {
		alert('The ' + fields + ' must be the same.');
		return false;
	}
}

function checkHidden(theField, s)
{
	if(theField.value == "")
	{
		alert(mPrefix + s + mSuffix)
		return false;
	}
	
	return true;
}

function isDate(dateStr) {

	var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{4})$/;
	var matchArray = dateStr.match(datePat); // is the format ok?

	if (matchArray == null) {
		alert("Voer uw geboortedatum in op de volgende manier: 'dd-mm-jjjj'.");
		return false;
	}

	month = matchArray[1]; // p@rse date into variables
	day = matchArray[3];
	year = matchArray[5];

	if (month < 1 || month > 12) { // check month range
		alert("Geboortedatum niet correct.");
		return false;
	}

	if (day < 1 || day > 31) {
		alert("Geboortedatum niet correct");
		return false;
	}

	if ((month==4 || month==6 || month==9 || month==11) && day==31) {
		alert("Maand "+month+" heeft geen 31 dagen.")
		return false;
	}

	if (month == 2) { // check for february 29th
		var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
		
		if (day > 29 || (day==29 && !isleap)) {
			alert("Februari " + year + " heeft geen " + day + " dagen.");
			return false;
		}
	}

	return true; // date is valid

}

function checkDate(oField, layoutName)
{
	
	if(oField.value == "")
	{
		return true;
	}

	var aDate = oField.value.split("/");
	
	var nDay = aDate[1].toString();
	var nMonth = aDate[0].toString();
	var nYear = aDate[2].toString();
	
	if(nMonth != "" || nDay != "" || nYear != "") {
	
		var dDate = nMonth + "/" + nDay + "/" + nYear;
		
		if(isDate(dDate)) { 
			return true;
		} else { 
			return false;
		}
			
	}
	
	return true;
		
}

function IsEmail(oField, layoutName)
{	
	if(oField.value == "")
		return true;
		
	var x = oField.value
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
	if (filter.test(x))
	{
		return true;
	}
	else
	{
		
		alert(sErrorMessage);
		oField.focus();
		return false;
	}
}
function checkString (theField, s, emptyOK)
{   
    if (checkString.arguments.length == 2) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (isWhitespace(theField.value)) 
       return warnEmpty (theField, s);
    else return true;
}

function checkRadioButton(oField, layoutName)
{
	for(i=0;i<oField.length;i++)
	{
		if(oField[i].checked == true)
			return true;
	}
	alert('"' + layoutName + sRequired);

	return false;
}


function checkCheckBox(oField, layoutName)
{
	var iLength;
	iLength = oField.length;
	
	if(!oField.length)
	{
		if(oField.checked == false)
		{
			alert(layoutName + sMustBeChecked);
			return false;
		}
	}
	else
	{
		for(i=0;i<oField.length;i++)
		{
			if(oField[i].checked == true)
				return true;
		}
		alert(sAtLeast + layoutName + sChecked);
		return false;
	}
	
	return true;

}

function warnEmpty (theField, s)
{  
	theField.focus()
    alert(mPrefix + s + mSuffix)
    return false
}

function isWhitespace (s)
{   
	var i;

    if (isEmpty(s)) return true;
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (whitespace.indexOf(c) == -1) return false;
    }
    return true;
}


	
function CheckPassword(szP,szNP)
{
	if (szP == szNP)
	{
		if (CheckQuality(szP) == true)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		document.frm.password.value = "";
		document.frm.password.focus();
		if (document.frm.validate) {
			document.frm.validate.value = "";
		}
		alert(sPassNotSame);
		return false;
	}
}
	
function CheckQuality(szP)
{
	var lowercase = new Array("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","0","1","2","3","4","5","6","7","8","9","0");
	var forbiddensigns = new Array("?","'","{","}","[","]","|","/","\\",";",":",">","<",".",",","`","~");

	if (szP.length >= 6)
	{
		var szPL = szP.length;

		if (CheckInArray(szP,forbiddensigns) == false)
		{
			return true;
		}
		else
		{
			alert(sPassNotAllowed + " ?'{}[]|\\/;:<>,.`~  !");
			return false;
		}

	}
	else
	{
		alert(sPass6Chars);
		return false;
	}
}
	
function CheckInString(sz,szSearchIn)
{
	var szSIL = szSearchIn.length;
	var szL = sz.length;
	var szErr = "0";
	var j;

	for (j = 0; j < szL; j++)
	{
		if (szSearchIn.search(sz.substr(j,j)) != -1) 	
		{
			szErr = "1";
		}
	}

	if (szErr == "1") 
	{
		return 0;
	}
	else
	{
		return 1;
	}
}

function CheckInArray(sz,szA)
{

	var szAL = szA.length;
	var szL = sz.length;
	var szErr = 0;

	for (var i = 0; i < szAL; i++)
	{
		for (var j = 0; j < szL; j++)
		{
			if (eval(szA[i].charCodeAt(0)) != eval(sz.charCodeAt(j)))
			{
				szErr += 1;
			}
		}
	}

	if (szErr != 0) 
	{
		return false;
	}
	else
	{
		return true;
	}
}
function checkDateNew(oField, layoutName){
	
	if(oField.value == ""){
		return true;
	}

	var aDate 	= oField.value.split("/");
	var nDay 	= aDate[1].toString();
	var nMonth 	= aDate[0].toString();
	var nYear 	= aDate[2].toString();
	var arMonths = new Array("januari","februari","maart","april","mei","juni","juli","augustus","september","oktober","november","december");

	
	if(nDay == ""){
		alert('Dag is niet ingevuld');
		return false;
	}
	if(nMonth == ""){
		alert('Maand is niet ingevuld');
		return false;
	}
	if(nYear == ""){
		alert('Jaartal is niet ingevuld');
		return false
	}
	if(isNaN(nYear)){
		alert('Jaartal is niet numeriek');
		return false;
	}
	if(nYear.length != 4){
		alert("Jaartal dient uit 4 cijfers te bestaan");
		return false;
	}
	
	

	var schYear = String(nYear/4)
	var isSchYear = schYear.indexOf(".")
	
	if (((nMonth==2)||(nMonth==4)||(nMonth==6)||(nMonth==9)||(nMonth==11))&&(nDay==31)){
		alert("De maand " + arMonths[nMonth-1] + " heeft geen 31 dagen.\nPas dit aan.")
		return false
	}
	if ((nMonth==2)&&(nDay==30)){
		alert("De maand " + arMonths[nMonth-1] + " heeft geen 30 dagen.\Pas dit aan.")
		return false
	}
	
	if (isSchYear>0){
		if ((nMonth==2)&&(nDay==29)){
			alert("De maand februari heeft in dit jaar maar 28 dagen.\Pas dit aan.")
			return false
		}
	}
	
	
	
	return true;
}