if (parseInt(navigator.appVersion)>=4) {
  document.onload = 
  MM_preloadImages('/gifs/nav_firmprofile_ovr.gif',
                   '/gifs/nav_listings_ovr.gif',
                   '/gifs/nav_historic_ovr.gif',
                   '/gifs/nav_news_ovr.gif',
                   '/gifs/nav_agents_ovr.gif',
                   '/gifs/nav_contact_ovr.gif',
                   '/gifs/nav_popup_1.gif',
                   '/gifs/nav_popup_2.gif',
                   '/gifs/nav_popup_3.gif',
                   '/gifs/nav_popup_4.gif',
                   '/gifs/nav_popup_5.gif',
                   '/gifs/nav_popup_6.gif',
                   '/gifs/nav_popup_7.gif',
                   '/gifs/nav_sitemap_ovr.gif',
                   '/gifs/nav_1listings_ovr.gif',
                   '/gifs/nav_2profile_ovr.gif',
                   '/gifs/nav_3historic_ovr.gif',
                   '/gifs/nav_4news_ovr.gif',
                   '/gifs/nav_5agents_ovr.gif',
                   '/gifs/nav_6contact_ovr.gif',
                   '/gifs/nav_7sitemap_ovr.gif',
                   '/gifs/nav_9popup1.gif',
                   '/gifs/nav_9popup2.gif',
                   '/gifs/nav_9popup3.gif',
                   '/gifs/nav_9popup4.gif',
                   '/gifs/nav_9popup5.gif',
                   '/gifs/nav_9popup6.gif',
                   '/gifs/nav_9popup7.gif' /*,
                   '/gifs/mylistings_ovr.gif' */)
}