var dia1;
	var dia2;
	var dia = 0;

	function startDiaShow() {
		dia1 = document.getElementById("dia1");
		dia2 = document.getElementById("dia2");
		dia1.style.backgroundImage = "url(" + imgList[dia] + ")";
		window.setTimeout("loadNewDiaIn2()", delay);
	}

	function loadNewDiaIn2() {
		dia++;
		if (dia >= imgList.length) {
			dia = 0;
		}
		dia2.style.backgroundImage = "url(" + imgList[dia] + ")";
		window.setTimeout("fade()", fadingtime);
	}

	function fade(){
		// new image for dia1

		diaVar =  new Fx.Tween('dia1', {
			property: 'opacity',
			duration: fadingtime,
			link: 'chain'
		});
		diaVar.start(1,0);
		window.setTimeout("loadNewDiaIn1()", Math.max(fadingtime, delay - fadingtime));
	}

	function loadNewDiaIn1() {
		dia1.style.backgroundImage = "url(" + imgList[dia] + ")";
		window.setTimeout("showDia1()", delay/2);
	}

	function showDia1() {
		// make dia1 visible
		$('dia1').setStyle("opacity", 1);
		window.setTimeout("loadNewDiaIn2()", delay/2);
	}

window.addEvent('domready', function(){
	startDiaShow();
	});