A proper fade-to-background effect with jQuery, without caching problems.\r\n\r\nAmalgamation from different sources and help found on stackoverflow:\r\nhttp://stackoverflow.com/questions/3628459/jquery-page-transition-and-browser-history\r\nhttp://stackoverflow.com/questions/158319/cross-browser-onload-event-and-the-back-button/201406#201406