// doMeniu displays the input menu
// input: state: 0 - hide the submenu
//               1 - display  the submenu
function doMeniu(state,id)
{
  if(state)
  {
    // IE
    if (document.all){
      document.all[id].style.visibility='visible';}
    // NS 4
    else if (document.layers){
        document.layers[id].visibility='show';}
    // Mozilla / Netscape / Firefox
    else
        document.getElementById(id).style.visibility='visible';
  }
  else
  {
    // IE
    if (document.all)
      document.all[id].style.visibility='hidden';
    // NS 4
    else if (document.layers)
        document.layers[id].visibility='hide';
    // Mozilla / Netscape / Firefox
    else
        document.getElementById(id).style.visibility='hidden';
  }
  return true;
}