function showHide(elem) {
	if (elem.parentNode.parentNode.nextSibling.style.display == 'none') {
		elem.parentNode.parentNode.nextSibling.style.display = 'block';
	}
	else {
		elem.parentNode.parentNode.nextSibling.style.display = 'none';
	}
}
function checkonlinehelp() {
	var email = document.getElementById('on_email');
	var telefon = document.getElementById('on_telefon');
	if ((email.value == '') && (telefon.value == '')) {
		alert('Please fill in your email or telephone number.');
		return false;
	}
	else {
		return true;
	}
}