function ShowHide(id1, id2) {
if (id1 != '') expMenu(id1);
if (id2 != '') expMenu(id2);
}

function expMenu(id) {
var itm = null;
if (document.getElementById) {
itm = document.getElementById(id);
} else if (document.all){
itm = document.all[id];
} else if (document.layers){
itm = document.layers[id];
}
if (!itm) {
// do nothing
}
else if (itm.style) {
if (itm.style.display == "none") { itm.style.display = ""; }
else { itm.style.display = "none"; }
}
else { itm.visibility = "show"; }
}

function confirmDelete(delUrl) {
  if (confirm("Are you sure you want to delete")) {
    document.location = delUrl;
  }
}

function disp_confirm(strona)
  {
  var r=confirm("Czy napewno chcesz usunąć ta ofertę?")
  if (r==true)
    {
    document.location.href = strona; 
    return true; 
    }

  }
  
  function disp_page(strona)
  {
    //document.location.href = strona; 
alert("Uwaga! Funkcja jeszcze niedostepna.");
  }