$(function() {
	
	var totalPanels			= $(".scrollContainer").children().size();
		
	var regWidth			= $(".panel").css("width");
	var regImgWidth			= $(".panel img").css("width");
	var regTitleSize		= $(".panel h2").css("font-size");
	var regParSize			= $(".panel p").css("font-size");
	
	var movingDistance	    = 190;
	
	var curWidth			= 232;
	var curImgWidth			= 222;
	var curTitleSize		= "20px";
	var curParSize			= "15px";

	var $panels				= $('#slider .scrollContainer > div');
	var $container			= $('#slider .scrollContainer');

	$panels.css({'float' : 'left','position' : 'relative'});
    
	$("#slider").data("currentlyMoving", false);

	$container
		.css('width', ($panels[0].offsetWidth * $panels.length) + 100 )
		.css('left', "-60px");

	var scroll = $('#slider .scroll').css('overflow', 'hidden');

	function returnToNormal(element, item) {
		$(element)
			.animate({ width: regWidth })
			.find("img")
			.animate({ width: regImgWidth })
		    .end()
			.find("h2")
			.animate({ fontSize: regTitleSize })
			.end()
			.find("p")
			.animate({ fontSize: regParSize });
            //$("#link_"+item).attr("href", "#??");
	};
	
	function growBigger(element, item) {
		$(element)
			.animate({ width: curWidth })
			.find("img")
			.animate({ width: curImgWidth })
		    .end()
			.find("h2")
			.animate({ fontSize: curTitleSize })
			.end()
			.find("p")
			.animate({ fontSize: curParSize });

             //$("#link_"+item).attr("href", "#bp2");

	}
	
	//direction true = right, false = left

        function goto(direction){
            
            $('div#showGalleryPics').html("Ładowanie zdjęc galerii...");
            $('div#showGalleryPics').load( 'modules/moving_boxes/getGalleryPics.php',
                           { dir : direction },
                           function() {
                            // $('div#showGalleryPics').gallerific();
                           });

           
            var w = (typeof window.innerWidth != 'undefined' ? window.innerWidth : document.body.offsetWidth);
            var xoffset=Math.round((w-1519)/2);
            //alert (xoffset);
                //this.offset=-xoffset;
            //offset={top:0, left:-xoffset};
            $("#content").scrollTo("#bp4_0", { axis:'xy', offset:{top:0, left:-xoffset}, duration:1000, queue:true });



        }

	function change(direction) {
	   
	    //if not at the first or last panel
		if((direction && !(curPanel < totalPanels)) || (!direction && (curPanel <= 1))) { return false; }	
        
        //if not currently moving
        if (($("#slider").data("currentlyMoving") == false)) {
            
			$("#slider").data("currentlyMoving", true);
			
			var next         = direction ? curPanel + 1 : curPanel - 1;
			var leftValue    = $(".scrollContainer").css("left");
			var movement	 = direction ? parseFloat(leftValue, 10) - movingDistance : parseFloat(leftValue, 10) + movingDistance;
		
			$(".scrollContainer")
				.stop()
				.animate({
					"left": movement
				}, function() {
					$("#slider").data("currentlyMoving", false);
				});
			
			returnToNormal("#panel_"+curPanel, curPanel);
			growBigger("#panel_"+next, next);
			
			curPanel = next;
			
			//remove all previous bound functions
			$("#panel_"+(curPanel+1)).unbind();	
			
			//go forward
			$("#panel_"+(curPanel+1)).click(function(){ change(true); });
			
            //remove all previous bound functions															
			$("#panel_"+(curPanel-1)).unbind();
			
			//go back
			$("#panel_"+(curPanel-1)).click(function(){ change(false); }); 
			
			//remove all previous bound functions
			$("#panel_"+curPanel).unbind();
                        $("#panel_"+(curPanel)).click(function(){ goto(curPanel); });
		}
	}
	
	// Set up "Current" panel and next and prev
	growBigger("#panel_2", 1);
	var curPanel = 2;
	
	$("#panel_"+(curPanel+1)).click(function(){ change(true); });
	$("#panel_"+(curPanel-1)).click(function(){ change(false); });
        $("#panel_"+(curPanel)).click(function(){ goto(curPanel); });
	
	//when the left/right arrows are clicked
	$(".right").click(function(){ change(true); });	
	$(".left").click(function(){ change(false); });
	
	$(window).keydown(function(event){
	  switch (event.keyCode) {
			case 13: //enter
				$(".right").click();
				break;
			case 32: //space
				$(".right").click();
				break;
	    case 37: //left arrow
				$(".left").click();
				break;
			case 39: //right arrow
				$(".right").click();
				break;
	  }
	});
	
});