homeImg = new Array("/_layouts/images/ofgem/pic1-gasflame.jpg", "/_layouts/images/ofgem/pic2-elderlycouple.jpg", "/_layouts/images/ofgem/pic3-windturbines.jpg", "/_layouts/images/ofgem/pic4-fatherand son.jpg", "/_layouts/images/ofgem/pic5-EUflag.jpg");
		
		imgCt = homeImg.length;
		
		function swapImg() {
			if (document.images) {
			randomNum = Math.floor((Math.random() * imgCt));
			document.images["homePicture"].src = homeImg[randomNum];
			}
		}