function validateContactForm()
{
	var error = 'Please fill in the following fields:\n';
	var i = 0
	
	if (document.getElementById('name').value == '') {
		error = error + 'Name\n';
		i++;
	}
	if (document.getElementById('email').value == '') {
		error = error + 'E-Mail\n';
		i++;
	}
	if (document.getElementById('phone').value == '') {
		error = error + 'Phone\n';
		i++;
	}
	if (document.getElementById('subject').value == '') {
		error = error + 'Subject\n';
		i++;
	}
	if (document.getElementById('description').value == '') {
		error = error + 'Description';
		i++;
	}
	
	if (i > 0) {
		alert(error);
		return false;
	}
	
	return true;
}