function toggleBox(szDivID) {
  if (document.layers) { // NN4+
    if (document.layers[szDivID].visibility == 'visible') {
      document.layers[szDivID].visibility = "hide";
      document.layers[szDivID].display = "none";
      document.layers[szDivID+"SD"].fontWeight = "normal";
    } else {
      document.layers[szDivID].visibility = "show";
      document.layers[szDivID].display = "inline";
      document.layers[szDivID+"SD"].fontWeight = "bold";
    }
  } else if (document.getElementById) { // gecko(NN6) + IE 5+
    var obj = document.getElementById(szDivID);
    var objSD = document.getElementById(szDivID+"SD");

    if (obj.style.visibility == 'visible') {
      obj.style.visibility = "hidden";
      obj.style.display = "none";
      objSD.style.fontWeight = "normal";
    } else {
      obj.style.visibility = "visible";
      obj.style.display = "inline";
     objSD.style.fontWeight = "bold";
    }
  } else if (document.all) { // IE 4
   if (document.all[szDivID].style.visibility == 'visible') {
      document.all[szDivID].style.visibility = "hidden";
      document.all[szDivID].style.display = "none";
      document.all[szDivID+"SD"].style.fontWeight = "normal";
    } else {
      document.all[szDivID].style.visibility = "visible";
      document.all[szDivID].style.display = "inline";
      document.all[szDivID+"SD"].style.fontWeight = "bold";
    }
  }
}


function popUp(strURL,strType,strHeight,strWidth) {
var strOptions="";
if (strType=="console") strOptions="resizable=no,height="+strHeight+",width="+strWidth;
if (strType=="fixed") strOptions="status,height="+strHeight+",width="+strWidth;
if (strType=="elastic") strOptions="scrollbars,resizable,height="+strHeight+",width="+strWidth;
window.open(strURL, 'newWin', strOptions);
}



function change(x) {
  document.getElementById("opis").innerHTML = x
}



function changemenu(x) {
  document.getElementById("opismenu").innerHTML = x
}



function changeact(x) {
  document.getElementById("opisact").innerHTML = x
}