function addBookmark(title,url) {
	if (window.sidebar) {
		window.sidebar.addPanel(title, url,"");
	} else if( document.all ) {
		window.external.AddFavorite( url, title);
	} else if( window.opera && window.print ) {
		return true;
	}
}

function okno(soubor,sirka,vyska)  {
	window.open(soubor,'','toolbar=no,scrollbars=yes,location=no,status=no,width='+sirka+',height='+vyska+',resizable=1')
}

// ------------------------------------------ zmena tridy
function Aktivni(id)  {
  document.getElementById(id).className = "aktivni";
}

function Deaktivni(id)  {
  document.getElementById(id).className = "";
}

// ------------------------------------------ funkce pro rozbalovaci menu

var PocetMenu = 3;

function show(menu_item)
{
  document.getElementById("podmenu" + menu_item).style.visibility = "visible";
  document.getElementById("a-menu"+menu_item).className = "selected";
}

function hide(menu_item)
{
  document.getElementById("podmenu" + menu_item).style.visibility = "hidden";
  document.getElementById("a-menu"+menu_item).className="";
}

function fcecasovac(par)
{
  for(i=1;i<=2;i++) {
    div = "div-reklama-" + i;
    if (i != par) document.getElementById(div).style.display = "none";
  }
  div = "div-reklama-" + par;
  document.getElementById(div).style.display = "block";
  par++;
  if (par > 2) par = 1;
  casovac = window.setTimeout("fcecasovac(" + par + ");", 7200);
}