function okno(adresa) {
		window.open(adresa,"okno","width=300,height=300,resizable=1");
	}

  var active_menu = false, tout = false;

  function showmenu(menu_id) {
		if (document.getElementById) {
		  if (tout) window.clearTimeout(tout);
		  if (active_menu == menu_id) return;
	    if (active_menu) hide_menu(active_menu);
	    active_menu = menu_id;
		  submenu = document.getElementById("subMenu" + menu_id);
		  if (submenu && (submenu.style.display == 'none' || !Boolean(submenu.style.display))) {
		    submenu.style.display = 'block';
		  }
		  topmenu = document.getElementById("menu" + menu_id);
		  if (topmenu) topmenu.className = topmenu.className.replace(/(\s)?topMenuLinkOut/g,"") + RegExp.$1 + "topMenuLinkOver";
      //
		}
  }

  function hidemenu(menu_id) {
    tout = window.setTimeout('hide_menu(\'' + menu_id + '\')',1000);
  }

  function hide_menu(menu_id) {
    submenu = document.getElementById("subMenu" + menu_id);
    if (submenu) submenu.style.display = 'none';
    topmenu = document.getElementById("menu" + menu_id);
		if (topmenu) topmenu.className = topmenu.className.replace(/(\s)?topMenuLinkOver/g,""); // + RegExp.$1 + "topMenuLinkOut";
    active_menu = false;
  }