var slide = 0;
var delay = 7;
var slides = new Array (
   "images/photos/church_01.jpg",
   "images/photos/church_02.jpg",
   "images/photos/church_05.jpg",
   "images/photos/hhouse_02.jpg"
);

function run ()
{
   document.getElementById("slideshow").src = slides[slide];
   slide = (slide + 1) % slides.length;
   window.setTimeout("run();", delay*1000);
}