var num_pics = 10;
	var delay = 3000;
	var speed = 100;
	var rys = new Array();
	var tid = null;
	var cid = 1;
	var opacity = 100;

	var imbg = document.getElementById("pic_bg");
	var imfg = document.getElementById("pic_fg");

	var ie = (typeof(imfg.style.opacity) == 'undefined');

	function chpic()
	{
		if (tid != null)
		{
			clearTimeout(tid);
			tid = null;
		}

		if (opacity)
		{
			opacity -= 10;
			if (ie)
			{
				imfg.filters[0].opacity = opacity;
			}
			else
			{
				imfg.style.opacity = opacity / 100;
			}

			tid = setTimeout("chpic()", speed);
		}
		else
		{
			//swap

			imfg.style.visibility = 'hidden';

			if (ie)
			{
				imfg.filters[0].opacity = 100;
			}
			else
			{
				imfg.style.opacity = 1;
			}

			imfg.src = "Obrazki/sshow/" + (cid + 1) + ".jpg";
			var c2 =  cid + 1;
			if (c2 > num_pics - 1)
				c2 = 0;

			imbg.style.backgroundImage = 'url("Obrazki/sshow/' + (c2 + 1) + '.jpg")';

			opacity = 100;
			cid++;

			imfg.style.visibility = 'visible';

			if (cid > num_pics - 1)
				cid = 0;

			tid = setTimeout("chpic()", delay);
		}
	}

	for (var i = 0; i < num_pics; i++)
	{
		rys.push(new Image());
		rys[i].src = "Obrazki/sshow/" + (i + 1) + ".jpg";
	}

	chpic();