function start_slideshow(start_frame,end_frame,delay){setTimeout(switch_slides(start_frame,start_frame,end_frame,delay),delay);}
function switch_slides(frame,start_frame,end_frame,delay){return(function(){Effect.Fade('f_group'+frame);if(frame==end_frame){frame=start_frame;}else{frame=frame+1;}
setTimeout("Effect.Appear('f_group"+frame+"');",850);setTimeout(switch_slides(frame,start_frame,end_frame,delay),delay+850);});}