var currentShow = 1;
	var lastShow = 0;
	var paused = false;
	var sblock = false;	

	function showBlock() {
		sblock = true;
	}

	function showUnblock() {
		if (paused && sblock) {
			sblock = false;
		}
	}


	function showPause() {
		if (!paused || sblock) {
			paused = true;
			document.getElementById('pause').src = 'img/pauseg.png';
			document.getElementById('pauseg').src = 'img/pauseg.png';
			document.getElementById('play').src = 'img/play.png';
			document.getElementById('playg').src = 'img/playg.png';
		} else {
			//
		}
		
	}

	function showPlay() {
		if (!paused) {
		//
		} else {
			paused = false;
			document.getElementById('play').src = 'img/playg.png';
			document.getElementById('playg').src = 'img/playg.png';
			document.getElementById('pause').src = 'img/pause.png';
			document.getElementById('pauseg').src = 'img/pauseg.png';
			setTimeout("showAutoNext();",5000);
		}

	}

		
	function showAutoNext() {
		if (!paused) {
			var nextShow = currentShow + 1;
			var id = 'ogloszenie'+ currentShow;
			var idn = 'ogloszenie'+ nextShow;
			
			document.getElementById(id).style.display = 'none';
			if (document.getElementById(idn)) {
				document.getElementById(idn).style.display = 'block';
				currentShow = nextShow;
			} else {
				document.getElementById('ogloszenie1').style.display = 'block';
				currentShow = 1;
			}
			setTimeout("showNext();",20000);
		}
		
	}

	function showNext() {
		
			var nextShow = currentShow + 1;
			var id = 'ogloszenie'+ currentShow;
			var idn = 'ogloszenie'+ nextShow;
			
			document.getElementById(id).style.display = 'none';
			if (document.getElementById(idn)) {
				document.getElementById(idn).style.display = 'block';
				currentShow = nextShow;
			} else {
				document.getElementById('ogloszenie1').style.display = 'block';
				currentShow = 1;
			}
		
		if (!paused) {
			setTimeout("showAutoNext();",20000);
		}
		
	}

		function showPrev() {
		if (currentShow >1) {
			var nextShow = currentShow - 1;
		} else {
			var nextShow = lastShow;
		}
		var id = 'ogloszenie'+ currentShow;
		var idn = 'ogloszenie'+ nextShow;
		document.getElementById(id).style.display = 'none';
		document.getElementById(idn).style.display = 'block';
		currentShow = nextShow;
	}

	setTimeout("showAutoNext();",20000);