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

if (browserVer >= 3) version = "Ver3";
   else version = "n2"

if (version == "Ver3")
  {
      Button1Off = new Image();
   Button1Off.src = "files/foto.gif";  // odkaz na první soubor
   Button1On = new Image();
   Button1On.src = "files/foto_1.gif";   // odkaz na druhý soubor
      Button2Off = new Image();
   Button2Off.src = "files/kapely.gif";  
   Button2On = new Image();
   Button2On.src = "files/kapely_1.gif";  
      Button3Off = new Image();
   Button3Off.src = "files/lineup.gif";  
   Button3On = new Image();
   Button3On.src = "files/lineup_1.gif";  
      Button4Off = new Image();
   Button4Off.src = "files/mapka.gif";  
   Button4On = new Image();
   Button4On.src = "files/mapka_1.gif";
      Button5Off = new Image();
   Button5Off.src = "files/kontakt.gif";  
   Button5On = new Image();
   Button5On.src = "files/kontakt_1.gif";   
      Button6Off = new Image();
   Button6Off.src = "files/vstupenky.gif";  
   Button6On = new Image();
   Button6On.src = "files/vstupenky_1.gif";  
      Button7Off = new Image();
   Button7Off.src = "files/partneri.gif";  
   Button7On = new Image();
   Button7On.src = "files/partneri_1.gif";
      Button8Off = new Image();
   Button8Off.src = "files/questbook.gif";  
   Button8On = new Image();
   Button8On.src = "files/questbook_1.gif";
      Button9Off = new Image();
   Button9Off.src = "files/foto_2010.gif";  
   Button9On = new Image();
   Button9On.src = "files/foto_2010_1.gif";
      Button10Off = new Image();
   Button10Off.src = "files/foto_2011.gif";  
   Button10On = new Image();
   Button10On.src = "files/foto_2011_1.gif";
      Button11Off = new Image();
   Button11Off.src = "files/foto_2012.gif";  
   Button11On = new Image();
   Button11On.src = "files/foto_2012_1.gif";
   
   
     
}
function OverImage(imageName)
{ if (version == "Ver3")
  { gotFocus = eval(imageName + "On.src");
    document [imageName].src = gotFocus;
  }
}

function OffImage(imageName)
{ if (version == "Ver3")
  { lostFocus = eval(imageName + "Off.src");
    document [imageName].src = lostFocus;
  }
}

function zobrazFotoMenu()
{
document.getElementById('foto_menu').style.display='block';
}

function schovejFotoMenu()
{
document.getElementById('foto_menu').style.display='none';
}