// Easing equation, borrowed from jQuery easing plugin
// http://gsgd.co.uk/sandbox/jquery/easing/
jQuery.easing.easeOutQuart = function (x, t, b, c, d) {
	return -c * ((t=t/d-1)*t*t*t - 1) + b;
};

jQuery(function( $ ){
	/*Declare variables*/
	var txtArchitect = $("#projectName");
	//txtArchitect.html("sample text");
	var numberOfItems = $(".txt"); 
	var prevBtn = $(".prev");
	var nextBtn = $(".next");
	var selectProject = $("#prjName");
	var loading = $("#loading");
	var imageListHolder = $("#sections");
	//var loading = $("#loading");  
	//var messageList = $(".content > ul");
	//function for trigering items in drop down
	$("select").change(function () {
          $("select option:selected").each(function () {
                updateInfo( $(this).val() )  ;
              });
        })
        .change();
	function updateInfo(folderName)
	{
		//txtArchitect.html(folderName);
		//send visual cue that something is happening
		loading.fadeIn();
		imageListHolder.hide();
		//numberOfItems.fadeOut();
		txtArchitect.fadeOut(200);
		//do the ajax stuff
		$.ajax({  
            type: "POST", url: "getdata.php", data: "action=giveInfo&folder=" + folderName,  
            complete: function(data){  
                txtArchitect.html(data.responseText);
				updatePhotos(folderName);
                //updateShoutbox();
                txtArchitect.fadeIn(200);
            }  
         });
		
	}
	function updatePhotos(folderNme)
	{
		var totalImages = 0;
		$.ajax({  
            type: "POST", url: "getdata.php", data: "action=givePhoto&folder=" + folderNme,  
            complete: function(data){  
                imageListHolder.html(data.responseText);
                //updateShoutbox();
				loading.fadeOut();
				imageListHolder.fadeIn(2000);
				//call a function that scrolls the items to the begining
				//$("#sections").trigger('goto', [1]); //this event will not fire if item is already on 0
				$("#sections").trigger('goto', [0]);
				totalImages = $('#sections ul li').size();
				numberOfItems.html("1/"+totalImages);
				//numberOfItems.fadeIn(200);
            }  
         });
	}
	/**
	 * Most jQuery.serialScroll's settings, actually belong to jQuery.ScrollTo, check it's demo for an example of each option.
	 * @see http://flesler.demos.com/jquery/scrollTo/
	 * You can use EVERY single setting of jQuery.ScrollTo, in the settings hash you send to jQuery.serialScroll.
	 */
	
	/**
	 * The plugin binds 6 events to the container to allow external manipulation.
	 * prev, next, goto, start, stop and notify
	 * You use them like this: $(your_container).trigger('next'), $(your_container).trigger('goto', [5]) (0-based index).
	 * If for some odd reason, the element already has any of these events bound, trigger it with the namespace.
	 */		
	
	/**
	 * IMPORTANT: this call to the plugin specifies ALL the settings (plus some of jQuery.ScrollTo)
	 * This is done so you can see them. You DON'T need to specify the commented ones.
	 * A 'target' is specified, that means that #screen is the context for target, prev, next and navigation.
	 */
	$('#content').serialScroll({
		target:'#sections',
		items:'li', // Selector to the items ( relative to the matched elements, '#sections' in this case )
		//prev:'a.prev',// Selector to the 'prev' button (absolute!, meaning it's relative to the document)
		prev:prevBtn,
		//next:'a.next',// Selector to the 'next' button (absolute too)
		next:nextBtn,
		axis:'x',// The default is 'y' scroll on both ways
		//navigation:'#navigation li a',
		duration:500,// Length of the animation (if you scroll 2 axes and use queue, then each axis take half this time)
		force:true, // Force a scroll to the element specified by 'start' (some browsers don't reset on refreshes)
		
		queue:true,// We scroll on both axes, scroll both at the same time.
		//event:'click',// On which event to react (click is the default, you probably won't need to specify it)
		//stop:false,// Each click will stop any previous animations of the target. (false by default)
		lock:false, // Ignore events if already animating (true by default)		
		start: 0, // On which element (index) to begin ( 0 is the default, redundant in this case )		
		//cycle:true,// Cycle endlessly ( constant velocity, true is the default )
		//step:1, // How many items to scroll each time ( 1 is the default, no need to specify )
		//jump:false, // If true, items become clickable (or w/e 'event' is, and when activated, the pane scrolls to them)
		lazy:true,// (false - default) if true, the plugin looks for the items on each event(allows AJAX or JS content, or reordering)
		//interval:1000, // It's the number of milliseconds to automatically go to the next
		//constant:true, // constant speed
		
		onBefore:function( e, elem, $pane, $items, pos ){
			/**
			 * 'this' is the triggered element 
			 * e is the event object
			 * elem is the element we'll be scrolling to
			 * $pane is the element being scrolled
			 * $items is the items collection at this moment
			 * pos is the position of elem in the collection
			 * if it returns false, the event will be ignored
			 */
			 numberOfItems.html((pos+1) + "/" + $items.length);
			 //those arguments with a $ are jqueryfied, elem isn't.
			e.preventDefault();
			if( this.blur )
				this.blur();
		},
		onAfter:function( elem ){
			//'this' is the element being scrolled ($pane) not jqueryfied
		}
	});
	
});