function showRoute() {
	window.open("http://maps.google.de/?ie=UTF8&hl=de&q=" + document.getElementById('abfahrt').value + "+nach+Langenbergerstr. 88,33397 Rietberg-Mastholte");
}

function validateForm() {
	var error = false;
	
	if (checkField('name') == true) error = true;
	if (checkField('code') == true) error = true;
	if (checkField('kritik') == true) error = true;
	
	if (error == false)
		document.forms[0].submit();
}

function checkField(fieldname) {
	var error = false;
	if (document.getElementById(fieldname).value == 0) {
		document.getElementById('div_' + fieldname).style.color = "#FF0000";
		error = true;
	}
	else {
		document.getElementById('div_' + fieldname).style.color = "#FFFFFF";
	}
	return error;
}