$(function() {

	var pathImages = 'medias/images/accueil/carousel/';
	//var pathImages = 'images/carousel/';

	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");

	if ($.browser.msie && $.browser.version.substr(0,1)<7) {

		var movingDistance	    = 140;

		//var curWidth			= 350;
		var curWidth			= 158;
		var curImgWidth			= 135;
		var curTitleSize		= "20px";
		var curParSize			= "11px";

	} else {

		var movingDistance	    = 140;

		//var curWidth			= 350;
		var curWidth			= 158;
		var curImgWidth			= 146;
		var curTitleSize		= "20px";
		var curParSize			= "11px";

	}

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

	$panels.css({'float' : 'left','position' : 'relative'});

	$("#carousel").data("currentlyMoving", false);

	$container
		.css('width', ($panels[0].offsetWidth * $panels.length) + 100 )
		.css('left', "-140px");

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

	function returnToNormal(element) {
		$(element)
			.animate({ width: regWidth })
			.find("img")
			.animate({ width: regImgWidth })
		    .end()
			.find("h2")
			.animate({ fontSize: regTitleSize })
			.end()
			.find("p")
			.animate({ fontSize: regParSize });
	};

	function growBigger(element) {

		$(element)
			.animate({ width: curWidth })
			.find("img")
			.animate({ width: curImgWidth })
		    .end()
			.find("h2")
			.animate({ fontSize: curTitleSize })
			.end()
			.find("p")
			.animate({ fontSize: curParSize });

	};

	function linkElement(element) {

		$(element).mouseover( function( event ) {

			var img = $(this).find('img');
			var a = $(this).find('a');

			$(img).css('cursor','pointer');
			$(a).addClass('hover');

		});

		$(element).mouseout( function( event ) {

			var a = $(this).find('a');
			$(a).removeClass('hover');

		});

		$(element).click( function( event ) {

			var url = $(this).find('a').attr('href');
			$(location).attr('href',url);

		});

	};

	function unlinkElement(element) {

		var img = $(element).find('img');

		$(img).css('cursor','default');

		$(element).unbind();

	};

	//direction true = right, false = left
	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 (($("#carousel").data("currentlyMoving") == false)) {

			$("#carousel").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() {
					$("#carousel").data("currentlyMoving", false);
				});

			unlinkElement("#panel_"+curPanel);
			returnToNormal("#panel_"+curPanel);
			growBigger("#panel_"+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();

			linkElement("#panel_"+next);

		}
	}

	// Set up "Current" panel and next and prev
	growBigger("#panel_3");
	linkElement("#panel_3");
	var curPanel = 3;

	$("#panel_"+(curPanel+1)).click(function(){ change(true); });
	$("#panel_"+(curPanel-1)).click(function(){ change(false); });

	//when the left/right arrows are clicked
	$(".right").click(function(){ change(true); });
	$(".left").click(function(){ change(false); });

	//when the left/right arrows are mouse over
	$(".right").mouseover(function(){ $(this).attr('src', pathImages + 'rightarrow_over.png'); });
	$(".left").mouseover(function(){ $(this).attr('src', pathImages + 'leftarrow_over.png'); });

	//when the left/right arrows are mouse out
	$(".right").mouseout(function(){ $(this).attr('src', pathImages + 'rightarrow.png'); });
	$(".left").mouseout(function(){ $(this).attr('src', pathImages + 'leftarrow.png'); });

	$(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;
	  }
	});

});