function preloadImages( imageRoot )
{
  if (document.images) 
  {
  preloadPics( imageRoot+"buttons",
    "img_zoom", "img_zoom_"
  );

  preloadPics( imageRoot+"ic",
    "img_zoom", "img_zoom_",
    "home", "home_",
    "search", "search_",
    "map", "map_",
    "anonce_out_link", "anonce_out_link_",
    "zoom", "zoom_",
    "print", "print_"
  );

  }
  preloadFlag = true;
}