var pics = new Array('<img src="./images/church.jpg">','<img src="./images/church2.jpg">','<img src="./images/church3.jpg">','<img src="./images/church4.jpg">','<img src="./images/church5.jpg">','<img src="./images/church6.jpg">','<img src="./images/church7.jpg">','<img src="./images/church8.jpg">','<img src="./images/church9.jpg">','<img src="./images/church10.jpg">','<img src="./images/church11.jpg">');
var max = pics.length;
var num = Math.floor((Math.random() * max));
document.writeln(pics[num]);