function zaladowane() {
  document.getElementById('ladowanie').style.display='none';
  document.getElementById('reszta').style.display='block';
}


function open_window(nazwa,url,width,height) {

  var okno = window.open(url,nazwa,'width=' + width + ',height=' + height + ',resizable=0,scrollbars=yes,menubar=no');
  return okno;

}


function _ukryj(id) {
  document.getElementById(id).style.display = "none";
}


function _pokaz(id) {
  document.getElementById(id).style.display = "block";
}


function startowa() {
  this.style.behavior='url(#default#homepage)';this.setHomePage('http://www.nt.mocny.com');
}


function BoxVisible(szDivID, iState) {
  if (document.layers) { // NN4
    document.layers[szDivID].visibility = iState ? "show" : "hide";
  } else if(document.getElementById) { // gecko(NN6) + IE5+
    var obj = document.getElementById(szDivID);
    obj.style.visibility = iState ? "visible" : "hidden";
  } else if(document.all) {  //IE 4 
    document.all[szDivID].style.visibility = iState ? "visible" : "hidden";
  }
}


function BoxHidden(szDivID, iState) {
  if (document.layers) { // NN4
    document.layers[szDivID].visibility = iState ? "hide" : "show";
  } else if(document.getElementById) { // gecko(NN6) + IE5+
    var obj = document.getElementById(szDivID);
    obj.style.visibility = iState ? "hidden" : "visible";
  } else if(document.all) {  //IE 4 
    document.all[szDivID].style.visibility = iState ? "hidden" : "visible";
  }
}


function kategoria(mod,id) {
  ramka_kategorie.document.location.href='kategorie.php?'+mod+','+id;
}