$(document).ready(function(){
	
	var maxEvents = 4;
	var startEvent = 1;
	var currentEvent = 1;
	var timer = window.setInterval(function(){
		moveNext();
	}, 5000)
	
	function moveNext() {
		if(currentEvent < maxEvents) {
			currentEvent++;
		} else {
			currentEvent = 1;
		}
		
		hideAll();
		$("#aImage" + currentEvent + " img").css("display", "block");
	}
	
	function hideAll() {
		$("#aImage1 img").css("display", "none");
		$("#aImage2 img").css("display", "none");
		$("#aImage3 img").css("display", "none");
		$("#aImage4 img").css("display", "none");
	}
	
	$("#imgPrev").click(function(){
		window.clearInterval(timer);
		
		if(currentEvent > startEvent) {
			currentEvent--;
		} else {
			currentEvent = maxEvents;
		}
		
		hideAll();
		$("#aImage" + currentEvent + " img").css("display", "block");
	});
	
	$("#imgNext").click(function(){
		window.clearInterval(timer);
		
		if(currentEvent < maxEvents) {
			currentEvent++;
		} else {
			currentEvent = startEvent;
		}
		
		hideAll();
		$("#aImage" + currentEvent + " img").css("display", "block");
	});
	
	$("#imgSwitch1").click(function(){
		hideAll();
		$("#aImage1 img").css("display", "block");
		currentEvent = 1;
	});
	
	$("#imgSwitch2").click(function(){
		hideAll();
		$("#aImage2 img").css("display", "block");
		currentEvent = 2;
	});
	
	$("#imgSwitch3").click(function(){
		hideAll();
		$("#aImage3 img").css("display", "block");
		currentEvent = 3;
	});
	
	$("#imgSwitch4").click(function(){
		hideAll();
		$("#aImage4 img").css("display", "block");
		currentEvent = 4;
	});
	
});