<!--

var defaultEmptyOK = false;
var whitespace = " \t\n\r";
var mPrefix = "Het veld "
var mSuffix = " is leeg.\nDit is een verplicht veld. Vul dit veld alsnog in."
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 IsEmail(oField, layoutName)
{
	var sErrorMessage = 'Het e-mailadres is geen geldig e-mailadres';
	
	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('Het veld ' + layoutName + ' is een verplicht veld. Vul dit veld alsnog in.');

	return false;
}


function checkCheckBox(oField, layoutName)
{
	var iLength;
	iLength = oField.length;
	
	if(!oField.length)
	{
		if(oField.checked == false)
		{
			alert('Het veld ' + layoutName + " moet aangevinkt zijn. Vul dit veld alsnog in.");
			return false;
		}
	}
	else
	{
		for(i=0;i<oField.length;i++)
		{
			if(oField[i].checked == true)
				return true;
		}
		alert("Er moet minimaal een " + layoutName + " aangevinkt zijn.");
		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 checkDateTime(o,s)
{
	if (isEmpty(o.value))
	{
		alert('Het veld ' + s + ' is een verplicht veld, vul het veld alsnog in.');	
		return false;
	}
	else
	{
		var b = o.value;
		var a = b.split("-");
		if (isDate(a[0],a[1],a[2]))
		{
			return true;	
		}
		else
		{
			return false;	
		}
	}
}

function isDate(day,month,year) 
{
    var today = new Date();
    year = ((!year) ? y2k(today.getYear()):year);
    month = ((!month) ? today.getMonth():month-1);
    if (!day) return false
    var test = new Date(year,month,day);
    if ( (y2k(test.getYear()) == year) &&
         (month == test.getMonth()) &&
         (day == test.getDate()) )
        return true;
    else
        return false;
}

function y2k(number) { return (number < 1000) ? number + 1900 : number; }

function CompareDateM(a , b , sName1, sName2) 
{
  var sA = a;
  var sB = b;


  if ((sA == "" && sB == "") || (sA != "" && sB == ""))
  {
  	return true;	
  }
  if (sA == "" && sB != "")
  {
  	//alert("Het veld " + sName1 + " is leeg deze dient ingevuld te zijn");    
  	return true;	
  }
	
  var strA = sA.split("/");
  var strB = sB.split("/");
  var datA = new Date(strA[2], strA[0], strA[1]);
  var datB = new Date(strB[2], strB[0], strB[1]);
  
  if (datA < datB) 
  { 
  	return true; 
  }
  else 
  {
    if (datA > datB) 
    { 
    	alert("Het veld " + sName2 + " dient groter te zijn dan het veld " + sName1);    
    	return false; 
    }
    else 
    { 
    	return true; 
    }
  }
}

function makeDate(Day, Month, Year)
{
	Day = Day.value.toString();
	Month = Month.value.toString();
	Year = Year.value.toString();
	
	if(Day == "" && Month == "" && Year == "")
	{
		sValue = ""
		return sValue;
	}
	
	if(Day == "")
	{
		alert('Dag is niet ingevuld');
		return 'false';
	}
	if(Month == "")
	{
		alert('Maand is niet ingevuld');
		return 'false';
	}
	if(Year == "")
	{
		alert('Jaartal is niet ingevuld');
		return 'false';
	}
	if(isNaN(Year))
	{
		alert('Jaartal is niet numeriek');
		return 'false';
	}
	if(Year.length != 4)
	{
		alert("Jaartal dient uit 4 cijfers te bestaan");
		return 'false';
	}
	
	var sDateReturn = Month + "/" + Day + "/" + Year;
	if (!isDate(Day,Month,Year))
	{
		alert('U heeft geen juiste datum opgegeven');
		return 'false';
	}
	else
	{
		return sDateReturn;
	}
}

function CheckPassword(szP,szNP)
{
	if (szP == szNP)
	{
		if (CheckQuality(szP) == true)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{
		document.frm.npassword.value = "";
		document.frm.validate.value = "";
		document.frm.npassword.focus();
		alert("De wachtwoorden die u heeft ingegeven zijn niet gelijk.\nGeef het wachtwoord nogmaals in beide vakjes op.");
		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("Het wachtwoord mag geen van de volgende tekens bevatten: ?'{}[]|\\/;:<>,.`~  !");
			return false;
		}

	}
	else
	{
		alert("Uw nieuwe wachtwoord moet minstens uit 6 karakters bestaan!");
		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;
	}
}

-->