var slideshowSpeed = 6000;


$(document).ready(function() {

	var activeContainer = 1;	
	var currentImg = 0;
	var animating = false;
	var navigate = function(direction) {
		// Check if no animation is running. If it is, prevent the action
		if(animating) {
			return;
		}
		
		// Check which current image we need to show
		if(direction == "next") {
			currentImg++;
			if(currentImg == photos.length + 1) {
				currentImg = 1;
			}
		} else {
			currentImg--;
			if(currentImg == 0) {
				currentImg = photos.length;
			}
		}
		
		// Check which container we need to use
		var currentContainer = activeContainer;
		if(activeContainer == 1) {
			activeContainer = 2;
		} else {
			activeContainer = 1;
		}
		
		showImage(photos[currentImg - 1], currentContainer, activeContainer);
		
	};
	
	var currentZindex = -1;
	var showImage = function(photoObject, currentContainer, activeContainer) {
		animating = true;
		
		// Make sure the new container is always on the background
		currentZindex--;
		
		// Set the background image of the new active container
		$("#headerimg" + activeContainer).css({
			"background-image" : "url(/img/visuals/" + photoObject.image + ")",
			"display" : "block",
			"z-index" : currentZindex
		});
		
		// Hide the header text
//		$("#headertxt").css({"display" : "none"});
		
		$("#pictureduri")
			.attr("href", photoObject.url)
			.html(photoObject.title);
		
		
		// Fade out the current container
		// and display the header text when animation is complete
		$("#headerimg" + currentContainer).fadeOut(function() {
			setTimeout(function() {
				$("#headertxt").css({"display" : "block"});
				animating = false;
			}, 500);
		});
	};
	// We should statically set the first image
	navigate("next");
	
	// Start playing the animation
	interval = setInterval(function() {
		navigate("next");
	}, slideshowSpeed);


	$("#signupform").validator({
	   effect: 'wall', 
	   container: '#errors',
	   
	   // do not validate inputs when they are edited
	   errorInputEvent: null
	   
	// custom form submission logic  
	}).submit(function(e)  { 
	   
	   // when data is valid 
	   /*
	   if (!e.isDefaultPrevented()) {
		  
		  // tell user that everything is OK
		  $("#errors").html("<h2>All good</h2>");
		  
		  // prevent the form data being submitted to the server
		  // e.preventDefault();
	   } 
	   */
	});
	
	
	
	// adds an effect called "wall" to the validator
	$.tools.validator.addEffect("wall", function(errors, event) {
	
		// get the message wall
		var wall = $(this.getConf().container).animate({
  			"opacity": "toggle"
		}, "slow");
		
		// remove all existing messages
		wall.find("p").remove();
		
		// add new ones
		$.each(errors, function(index, error) {
			wall.append(
				"<p>" +error.messages[0]+ "</p>"
			);		
		});
		
	// the effect does nothing when all inputs are valid	
	}, function(inputs)  {
		
	});
	
	
	
	$("#mailadr").click( function() {
		if ($("#doen").attr("disabled")) {
			$("#doen").removeAttr("disabled");
		}
		$("#mailadr").focus();
		$("#mailadr").val("");		
	})
	$("#naam").click( function() {
		if ($("#doen").attr("disabled")) {
			$("#doen").removeAttr("disabled");
		}
		$("#naam").focus();
		$("#naam").val("");		
	})
	$("#mailadr").click(function() {
		$("#errors").hide('slow');		
	})


});