browser = (((navigator.appName == "Netscape") &&
(parseInt(navigator.appVersion) >= 3 )) || 
((navigator.appName == "Microsoft Internet Explorer") && 
(parseInt(navigator.appVersion) >= 4 )))

function mus_inn(img_name,img_src) {
if (browser) {
document[img_name].src=img_src;}
else {}
}

function mus_ut(img_name,img_src) {
if (browser) {
document[img_name].src=img_src;}
else {}
}

infovindu = new Object
infovindu.closed = true

function lukk() {
if ( ! infovindu.closed) {
	infovindu.close() }}
function opne(l) {
if ( ! infovindu.opened) {
	infovindu = window.open('../hint.asp?lang=' + l, 'infov', 'width=300,height=300,scrollbars=yes') }}

function sponse() {
if ( ! infovindu.opened) {
	infovindu = window.open('sponsor.asp', 'infov', 'width=300,height=300,scrollbars=yes') }}