function SwapImage() 
{ 
	var i,theObj,j=0,swapArray=new Array,oldArray=document.SwapImgData;
	for (i=0; i < (SwapImage.arguments.length-2); i+=3) 
	{
		theObj = eval(SwapImage.arguments[(navigator.appName == 'Netscape')?i:i+1])
		if (theObj != null) 
		{
		  swapArray[j++] = theObj;
		  swapArray[j++] = (oldArray==null || oldArray[j-1]!=theObj)?theObj.src:oldArray[j];
		  theObj.src = SwapImage.arguments[i+2];
		} 
	}
	document.SwapImgData = swapArray;
}

function clickIE() 
{ 
	if (document.all) {return false} 
} 

function checklogin()
{
	var gever = 0;
	if(document.getElementById('email').value == '')
	{
		alert('Vul een emailadres in');
		return false;
	}
	else if(document.getElementById('pwd').value == '')
	{
		alert('Vul een wachtwoord in');
		return false;
	}
	else if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.getElementById('email').value))
	{
		document.getElementById('inlogform').submit();
		return true;
	}
	else
	{
		alert('Ongeldige e-mail adres');	
	}
}