//menu pri referenciach
var stav = "none";
var zobrazena ="sub1";
function menu(meno){
  
  document.getElementById(zobrazena).style.display="none";  
      
  
  if(stav=="block" && zobrazena != meno){
  document.getElementById(meno).style.display="block"; 
  
  }
  else{
  document.getElementById(meno).style.display="none";  
  }

  if(stav == "block" && zobrazena == meno){
  document.getElementById(meno).style.display="none";  
  }
  else{
  document.getElementById(meno).style.display="block"; 
    
  }
  
  stav = document.getElementById(meno).style.display;
  zobrazena = meno;
   
};


// nacitanie stylu na zaklade prehliadaca
function verzia(){
  if (navigator.appName=="Microsoft Internet Explorer"){
    document.styleSheets[1].disabled = true;
  }
  else{
    document.styleSheets[0].disabled = true;
  }
}

function katalog(meno,skry1,skry2,skry3){
                  
Smeno = document.getElementById(meno).style.display;
 
  if (Smeno=="block"){
    document.getElementById(meno).style.display="none"; 
  }
  else{
    document.getElementById(meno).style.display="block"; 
  }

  document.getElementById(skry1).style.display="none";
  document.getElementById(skry2).style.display="none";
  document.getElementById(skry3).style.display="none";
};
function otvor(subor,okno){
okno=window.open("referencie/velke/"+subor,okno,"width=520,height=358,resizable=yes,left=0,top=0");
okno.focus(); 
};

var aktual = "hoby";
var aktvrch = "it1"
function ukaz(meno,vrch){
     document.getElementById(aktual).style.display="none";
     document.getElementById(meno).style.display="block";
     
     document.getElementById(aktvrch).style.backgroundColor="white";
     document.getElementById(vrch).style.backgroundColor="#F5E2CD";
     
     aktual = meno;
     aktvrch = vrch;
}

function otvorde(subor,okno){
okno=window.open("../referencie/velke/"+subor,okno,"width=520,height=358,resizable=yes,left=0,top=0");
okno.focus(); 
};

function foc(meno){
  meno.focus();
};