// -------------------------  preload images - icon menu  ----------------------

  PreloadNormalImage("img_flag_sk",web_root_web+"sk/img/flag-sk-off.png");
  PreloadRolloverImage("img_flag_sk",web_root_web+"sk/img/flag-sk-on.png");
  
  PreloadNormalImage("img_flag_en",web_root_web+"sk/img/flag-en-off.png");
  PreloadRolloverImage("img_flag_en",web_root_web+"sk/img/flag-en-on.png");

  PreloadNormalImage("img_flag_ru",web_root_web+"sk/img/flag-ru-off.png");
  PreloadRolloverImage("img_flag_ru",web_root_web+"sk/img/flag-ru-on.png");
  
  PreloadNormalImage("img_flag_de",web_root_web+"sk/img/flag-de-off.png");
  PreloadRolloverImage("img_flag_de",web_root_web+"sk/img/flag-de-on.png");

  PreloadNormalImage("search_btn",web_root_web+"sk/img/search-btn-off.png");
  PreloadRolloverImage("search_btn",web_root_web+"sk/img/search-btn-on.png");

  PreloadNormalImage("adv_search_btn",web_root_web+"sk/img/search-btn-off.png");
  PreloadRolloverImage("adv_search_btn",web_root_web+"sk/img/search-btn-on.png");

  PreloadNormalImage("img_sitemap",web_root_web+"sk/img/sitemap-btn-off.png");
  PreloadRolloverImage("img_sitemap",web_root_web+"sk/img/sitemap-btn-on.png");

  PreloadNormalImage("img_print",web_root_web+"sk/img/print-btn-off.png");
  PreloadRolloverImage("img_print",web_root_web+"sk/img/print-btn-on.png");

// -----------------------------  global functions  ----------------------------

  function OpenGallery(gid)
  {
     var page = "index.php?page=fotogalerie/"+gid;
     var mwin = window.open(page,"fotogalerie","width=970,height=690,scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
     return false;
  }

  function OpenGalleryMultimedia(gid)
  {
     var page = "index.php?page=fotogalerie-multimedia/"+gid;
     var mwin = window.open(page,"fotogalerie","width=970,height=690,scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
     return false;
  }

  function OpenGallerySlovnik(gid)
  {
     var page = "index.php?page=slovnik-fotogalerie/"+gid;
     var mwin = window.open(page,"fotogalerie","width=970,height=690,scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
     return false;
  }

  function OpenLinkToNewWindow(page,w,h)
  {
     var mwin = window.open(page,"fotogalerie","width="+w+",height="+h+",scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
     return false;
  }
  
  function OpenPopup(page_id)
  {
     var page = "index.php?page=popup/"+page_id;
     var mwin = window.open(page,"popup","width=800,height=630,scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
  }

  function OpenPopupCustomLink(page)
  {
     var page = page.replace("page=", "page=popup/");
     var mwin = window.open(page,"popup","width=590,height=630,scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=no");
     mwin.focus();
     return false;
  }


  function OpenImage(img_file)
  {
    var page   = "img.htm?img_file="+img_file;
    var my_win = window.open(page,"show_image","height=480,width=640,scrollbars=yes,status=no,toolbar=no,menubar=no,location=no,resizable=yes");
    my_win.focus();
    return false;
  }



  function OpenVideoPopup(page_id,width,height)
  {
    if (!width) width   =  "590";
    if (!height) height =  "630";

    var page = "index.php?page=popup-video/"+page_id;
    var mwin = window.open(page,"","width="+width+",height="+height+",scrollbars=no,status=no,toolbar=no,menubar=no,location=no,resizable=yes");
    mwin.focus();
  }