browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion); 

if (browserName == "Netscape" && browserVer >= 3) version="ok";
else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version="ok";
else version="no"; 

if (version == "ok") { 

m1 = new Image();
m1.src = "images/ofirmie_off.gif";
m1_on = new Image();
m1_on.src = "images/ofirmie_on.gif";

m2 = new Image();
m2.src = "images/uslugi_off.gif";
m2_on = new Image();
m2_on.src = "images/uslugi_on.gif";

m3 = new Image();
m3.src = "images/kontakt_off.gif";
m3_on = new Image();
m3_on.src = "images/kontakt_on.gif";

m4 = new Image();
m4.src = "images/pomoc_off.gif";
m4_on = new Image();
m4_on.src = "images/pomoc_on.gif";

m5 = new Image();
m5.src = "images/galeria_off.gif";
m5_on = new Image();
m5_on.src = "images/galeria_on.gif";

} 

function img_over(obrazek) {
if (version == "ok") {
document[obrazek].src = eval(obrazek + "_on.src");
}
} 

function img_out(obrazek) {
if (version == "ok") {
document[obrazek].src = eval(obrazek + ".src");
}
} 

//Preload buttonów podmiany
function preload() {
  if (!document.images) return;
  var ar = new Array();
  var arguments = preload.arguments;
  for (var i = 0; i < arguments.length; i++) {
    ar[i] = new Image();
    ar[i].src = arguments[i];
  }
}


//dodaj do ulubionych
function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}

//pupa
var win = null;
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = 10;
TopPosition = 10;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}