function nlSignUp() {
	
	if (document.getElementById('action-s').checked == true) {
		var baseurl = 'http://www.artoek.nl/nl_signup.php?email=';
	} else if (document.getElementById('action-u').checked == true) {
		var baseurl = 'http://www.artoek.nl/nl_unsubscribe.php?email=';
	} else {
		var baseurl = 'http://www.artoek.nl/nl_signup.php?email=';	
	}
	
	var url =  baseurl + document.getElementById('YMLP0').value + '&name=' + document.getElementById('YMLP3').value;
	window.open(url,'ymlp','width=550,height=300,scrollbars=0,status=0,resizable=0');
}