function numbersonly(myfield, e, dec)
{
	var key;
	var keychar;

	if (window.event)
   	key = window.event.keyCode;
	else if (e)
   	key = e.which;
	else
   	return true;
	keychar = String.fromCharCode(key);

	// control keys
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) )
   	return true;

	// numbers
	else if ((("0123456789").indexOf(keychar) > -1))
   	return true;

	// decimal point jump
	else if (dec && (keychar == "."))
   {
   	myfield.form.elements[dec].focus();
   	return false;
   }
	else
   	return false;
}


function submitit()
{
	if(document.getElementById('telefoon1').value==''&&document.getElementById('telefoon2').value==''&&document.getElementById('telefoon3').value==''){
		document.getElementById('telefoon1').style.backgroundColor = '#FFCCCC';
		document.getElementById('telefoon2').style.backgroundColor = '#FFCCCC';
		document.getElementById('telefoon3').style.backgroundColor = '#FFCCCC';
	 	alert('U dient tenminste 1 telefoonnummer in te voeren');
		return false;
	}else{
		if(document.getElementById('machtiging').checked == false){
			alert('U dient akkoord te gaan met de machtiging');
			document.getElementById('machtiging').style.backgroundColor = '#FFCCCC';
			return false;
		}else{
			return true;
		}
		return true;
	}
}