function InitFormValidator() {
	if (document.getElementById("kontaktform")) {
		document.getElementById("kontaktform").onsubmit = function() { return ValidateForm(); };
	}
}

function ValidateForm(e) {
	var form = document.forms["kontaktform"];
	var oAlert = document.getElementById("alert");

	var valid = (
		form.elements["navn"].value !== "" && 
		form.elements["besked"].value !== ""
	);

	if (oAlert) 
	oAlert.style.display = (!valid) ? "inline" : "none";

	return valid;
}