var x = 1;
var y = 1;
var test = new Array;
var last;

function skryj(idecko){
  el=document.getElementById(idecko).style;
  el.display='none';
}

function zobrazmenu(idecko){
  skryjmenuvsechna();

  if (test[idecko] == 1)
  {
    el=document.getElementById(idecko).style;
    el.display='none';
    test[idecko] = 0;
  }
  else
  {
    el=document.getElementById(idecko).style;
    el.display='block';
    test[idecko] = 1;
  }
}

function skryjmenuvsechna(){

  if (document.getElementById('podmenu0') != undefined)
  {
    el=document.getElementById('podmenu0').style;
    el.display='none';
  }

  if (document.getElementById('podmenu1') != undefined)
  {
    el=document.getElementById('podmenu1').style;
    el.display='none';
  }

  if (document.getElementById('podmenu2') != undefined)
  {
    el=document.getElementById('podmenu2').style;
    el.display='none';
  }

  if (document.getElementById('podmenu3') != undefined)
  {
    el=document.getElementById('podmenu3').style;
    el.display='none';
  }

  if (document.getElementById('podmenu4') != undefined)
  {
    el=document.getElementById('podmenu4').style;
    el.display='none';
  }

  if (document.getElementById('podmenu5') != undefined)
  {
    el=document.getElementById('podmenu5').style;
    el.display='none';
  }

  if (document.getElementById('podmenu6') != undefined)
  {
    el=document.getElementById('podmenu6').style;
    el.display='none';
  }

  if (document.getElementById('podmenu7') != undefined)
  {
    el=document.getElementById('podmenu7').style;
    el.display='none';
  }

  if (document.getElementById('podmenu8') != undefined)
  {
    el=document.getElementById('podmenu8').style;
    el.display='none';
  }
}

function podkategorie(policko) {
  if (last > 0)
  {
    el=document.getElementById('podkategorie' + last).style;
    el.display='none';
  }

  el=document.getElementById('podkategorie' + policko.options[policko.selectedIndex].value).style;
  el.display='block';

  last = policko.options[policko.selectedIndex].value;
}

function podkategorie2(ide1) {
    el=document.getElementById('podkategorie' + ide1).style;
    el.display='block';
}