function filterCislo(event) {
  if (document.all) {
    var kc = event.keyCode;
    if (kc != 0 && kc != 48 && kc != 49 && kc != 50 && kc != 51 && kc != 52 && kc != 53 && kc != 54 && kc != 55 && kc != 56 && kc != 57) { 
      event.returnValue = false; 
    }
  }
  else {
    var kc = event.charCode;
    if (kc != 0 && kc != 48 && kc != 49 && kc != 50 && kc != 51 && kc != 52 && kc != 53 && kc != 54 && kc != 55 && kc != 56 && kc != 57) { 
      event.preventDefault();
    }
  }
}


/* editacia obsahu stranok
*/
  function oes() {
   var el = document.editsite, err= "";

   if(el.rs1.value < 1) {
    err += " - názov stránky\n";
   }
   
   if(el.rs2.value.length < 1) {
    err += " - poradie odkazu v menu\n";
   }

   if(err != "") {
    err = "Nezadali ste\n\n" + err;
    window.alert(err);
    return false;   
   }
    else {
     return true;
    }
  }
  
/* vytvorenie novej stranky
*/
  function ons() {
   var el = document.newsite, err= "";

   if(el.rs1.value < 1) {
    err += " - názov stránky\n";
   }

   if(err != "") {
    err = "Nezadali ste\n\n" + err;
    window.alert(err);
    return false;   
   }
    else {
     return true;
    }
  }


 var zpnum = 0;
function rozbal() {
  document.getElementById('pridajodkaz').style.display = zpnum ? "none" : "inline";
  zpnum = Math.abs(zpnum - 1);
}

function checkOdkaz(x) {
  var crf = document.odkaz, err = "";
    
  if (crf.nick.value == "") {
    err += " - svoj nick\n";
  }
  
  if (crf.email.value=="") {
    err += " - svoju e-mailovú adresu\n";
  }
  else if (window.RegExp) {
    re = new RegExp("^[^.]+(\.[^.]+)*@([^.]+[.])+[a-z]{2,3}");
      if (!re.test(crf.email.value)) {
        err += " - e-mailovú adresu v správnom tvare\n";
      }
  }
  
  if (crf.overenie.value != "7") {
    err += " - spravny výpočet\n";
  }
  
  if (crf.odkaz.value == "") {
    err += " - text odkazu\n";
  }  
  
  if (err != "") {
    window.alert("Zabudli ste napísať:\n" + err);
    return false;
  }
   else {
    return true;
   }
}

//top submenu
//Toto treba vzdy urcit
var PocetMenu = 5;
function Showsubmenu(CisMenu){
  var menu = document.getElementById("menu"+CisMenu);
  menu.style.visibility= "visible";
}
//vysvieti sa nadpis akurat otvoreneho menu
function MenuSel(cispol){
  var menu = document.getElementById("Nmenu"+cispol);
//menu.style.backgroundColor="#0A1AA9";
  menu.style.color="";
  menu.style.visibility= "visible";
}
//zvyrazni (aktualnu) polozku pod kurzorom
function TabSel(cispol){
//var pol=eval("document.all.polozka"+cispol)
  var pol = document.getElementById("polozka"+cispol);
  pol.style.backgroundColor="#e9e9e9";
  pol.style.color="#000000";
//pol.style.checked.backgroundColor="#9B2461";
}

//zrusi zvyraznenie aktualnej polozky
function TabUnSel(cispol){
//var pol=eval("document.all.polozka"+cispol)
  var pol = document.getElementById("polozka"+cispol);
  pol.style.backgroundColor="";
  pol.style.color="";
//pol.style.checked.backgroundColor="#9B2461";
}

//zrusia sa vsetky vysvietenia nadpisov menu
function MenuUnSel(){
  var i, menu;
  for(i=1; i<=PocetMenu; i++){
  //menu=eval("document.all.Nmenu"+i)
  menu = document.getElementById("Nmenu"+i);
  menu.style.backgroundColor="";
  menu.style.color="";
  menu.style.visibility= "visible";
  }
}

function Hidesubmenu(v)
{
var menu, i, v;

//MenuUnSel(i);

for(i=1; i<=PocetMenu; i++)
{
//menu=eval("document.all.menu"+i);
menu = document.getElementById("menu"+i);
menu.style.visibility="hidden";
}
}

//end submenu statistik