var arr_images = new Array(0);
arr_images[0] = "image1.jpg";arr_images[1] = "image2.jpg";arr_images[2] = "image3.jpg";arr_images[3] = "image4.jpg";;

function rotator() {
		var randomnumber = Math.floor(Math.random()*arr_images.length)
		document.getElementById("swap_img").innerHTML = "<img src='sitepix/image_swaps/" + arr_images[randomnumber] + "' width='559' height='180' alt='Hope Homes' title='Hope Homes' />";
		setTimeout("rotator()",4000);
}