function submitForm(){
	
	var fout=0;
	
	if(document.getElementById('achternaam').value=='') {
		fout=1;
		document.getElementById('achternaam').className='red';
	} else {
		document.getElementById('achternaam').className='';
	}
	
	if(document.getElementById('email').value=='') {
		fout=1;
		document.getElementById('email').className='red';
	} else {
		document.getElementById('email').className='';
	}
	
	if(!fout) {
		document.form1.submit();
	}	
}

function setMenu(){
	var obj = document.getElementById('rootTable');
	var tableLeft = 0;
	var tableTop = 0;
	if (obj.offsetParent) {
		tableLeft = obj.offsetLeft;
		tableTop = obj.offsetTop;
		while (obj = obj.offsetParent) {
			tableLeft += obj.offsetLeft;
			tableTop += obj.offsetTop;
		}
	}
	document.getElementById('layer1').style.left = tableLeft+0;
	document.getElementById('layer1').style.top = tableTop+0;
}