function onlyIE() {
	var b = navigator.appName;
	if (b=="Netscape") this.b = "ns";
	else if (b=="Microsoft Internet Explorer") this.b = "ie";
	else this.b = b;
	
	if (b !== "Microsoft Internet Explorer") {
		var e = document.getElementById('tooltip');
		if (e != null) {
			var maintable = document.getElementById('divMaintable');
			maintable.innerHTML = "<table border=0 cellspacing=0 cellpadding=0 width=100% id=maintable class=onlyIE><tr><td valign=top><div class=kop>U gebruikt op dit moment geen Internet Explorer</div><br>De aanvraagformulieren op deze website zijn geoptimaliseerd voor de browser Internet Explorer. We hebben geconstateerd dat u op dit moment met een andere browser surft. Ons verzoek is dan ook om deze website met Internet Explorer te bezoeken.<br><br>Onze excuses voor het ongemak.</td></tr></table>";
		}
	}
}

function checkBrowser() {
	var b = navigator.appName;
	if (b=="Netscape") this.b = "ns";
	else if (b=="Microsoft Internet Explorer") this.b = "ie";
	else this.b = b;
}

function getEventKeyCode(e) {
	var keyCode = "";
	if (browser.b == "ie") {
		keyCode = event.keyCode
	}
	else 
	if (browser.b == "ns") {
		keyCode = e.which;		
	}
	return keyCode;
}

function getEventSourceValue(e) {
	var currentValue = "";
	if (browser.b == "ie") {
		currentValue = "";
		currentValue = window.event.srcElement.value;
	}
	else 
	if (browser.b == "ns") {
		currentValue = e.target.value;
	}
	return currentValue;
}

function validateInteger(e)
{
	var keyCode = getEventKeyCode(e);
	
	if(keyCode==13)
	{
		return(true);
	}
	
	if ((keyCode < 48 || keyCode > 57) && keyCode != 45)
	{
		return false;
	}
}

function validateNumber(e)
{
	var keyCode = getEventKeyCode(e);
	
	if(keyCode==13)
	{
		return(true);
	}
	
	if (keyCode < 48 || keyCode > 57)
	{
		return false;
	}

}

function validateDecimal(e)
{
	var keyCode = getEventKeyCode(e);
	
	if(keyCode==13)
	{
		return(true);
	}
	
	if ((keyCode < 48 || keyCode > 57) && keyCode != 46)
	{
		return false;
	}
}

function validateDate(e)
{
	var keyCode = getEventKeyCode(e);
	
	if(keyCode==13)
	{
		return(true);
	}
	
	if ((keyCode < 48 || keyCode > 57) &&  (keyCode != 45 && keyCode != 47))
	{
		return false;
	}
}

function validateYear(e)
{
	return validateNumber(e)
}

function validateMonth(e)
{
	return validateNumber(e)
}

function validateAlpha(e)
{
	var keyCode = getEventKeyCode(e);
	
	if(keyCode==13)
	{
		return(true);
	}
	
	if (keyCode < 65 || keyCode > 90)
	{
		if (keyCode < 97 || keyCode > 122)
		{
			return false;
		}
	}
}

var browser = new checkBrowser();