// Z.T.

var msg = "Ova prezentacija zahteva verzije 4+\n Netscape Navigator-a ili Internet Explorer-a"
var dyn = (document.layers || document.all) ? true : alert(msg);
var nav = (document.layers) ? true : false;
var iex = (document.all) ? true : false;


function scroll_up() {
if(pos > upr) pos -= stp;
do_scroll(pos);  
tim = setTimeout("scroll_up()", spd);
}

function scroll_dn() {
if(pos < lwr) pos += stp;
do_scroll(pos);
tim = setTimeout("scroll_dn()", spd);
}

function do_scroll(pos) {
if(iex) document.all.divTxt.style.top = pos;
if(nav) document.divTxt.top = pos;
}

function scroll_end() {
if(iex) document.all.divTxt.style.top = upr;
if(nav) document.divTxt.top = upr;
}
function no_scroll() {
clearTimeout(tim);
}

function SHLayer() { 
  var i, vidi, args, Obj;
  args = SHLayer.arguments;
  for (i=0; i<(args.length-2); i+=3) { 
    vidi   = args[i+2];
    if (navigator.appName == 'Netscape' && document.layers != null) {
      Obj = eval(args[i]);
      if (Obj) Obj.visibility = vidi;
    } else if (document.all != null) { 
      if (vidi == 'show') vidi = 'visible';
      if (vidi == 'hide') vidi = 'hidden';
      Obj = eval(args[i+1]);
      if (Obj) Obj.style.visibility = vidi;
  } }
}