function ukazMenu(a) {
  b = "splus" + a;
  if (document.getElementById("s"+a).className == "hide") {
    document.getElementById(b).className = "minus";
    document.getElementById("s"+a).className = "show";
  } else {
    document.getElementById(b).className = "plus";
    document.getElementById("s"+a).className = "hide";
  }
}

function ukazSubMenu(a) {
  b = "ssplus" + a;
  if (document.getElementById("ss"+a).className == "shide") {
    document.getElementById(b).className = "sminus";
    document.getElementById("ss"+a).className = "sshow";
  } else {
    document.getElementById(b).className = "splus";
    document.getElementById("ss"+a).className = "shide";
  }
}