// Navigation
function openNavigation(id) {
	for (i = 1; i <= 3; i++) {
		document.getElementById("sub-"+i).style.display = "none";
	}
	document.getElementById("sub-"+id).style.display = "block";
}

	// Link
function link(url) {
	window.location.href = url;
}

	// Form
function inputFocus(obj, vue){
	if (obj.value == vue) obj.value = '';
}

function inputBlur(obj, vue){
	if (obj.value == '') obj.value = vue;
}

	// Fehler
onerror = stopError;
function stopError() {
	return true;
}