<!--

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 isPhone(oField, layoutName){
	var sErrorMessage = 'Het '+layoutName+' is geen geldig telefoonnummer';
	
	if(oField.value == "")
		return true;
		
	var x = oField.value
	var filter  = /^([0-9])/;

	if (filter.test(x) && x.length == 10)
	{
		return true;
	}
	else
	{
		alert(sErrorMessage);
		oField.focus();
		return false;
	}
}


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[1],a[0],a[2]))
		{
			return true;	
		}
		else
		{
			return false;	
		}
	}
}

function y2k(number) { return (number < 1000) ? number + 1900 : number; }

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 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 checkHidden(theField, s)
{
	if(theField.value == "")
	{
		alert(mPrefix + s + mSuffix)
		return false;
	}
	
	return true;
}

function IsZipcode(oField, layoutName)
{
	var sErrorMessage = 'Het veld ' + layoutName + ' moet een geldig postcode zijn. Probeer het opnieuw.';
	
	if(oField.value == "")
		return true;
		
	var x = oField.value
	var filter  = /^\d{4} ?\w{2}$/;
	if (filter.test(x))
	{
		return true;
	}
	else
	{
		
		alert(sErrorMessage);
		oField.focus();
		return false;
	}
}

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(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(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;
}

//-->