/*
	jQuery Coda-Slider v2.0 - http://www.ndoherty.biz/coda-slider
	Copyright (c) 2009 Niall Doherty
	This plugin available for use in all personal or commercial projects under both MIT and GPL licenses.
*/

$(function(){
	// Remove the coda-slider-no-js class from the body
	$("body").removeClass("coda-slider-no-js");
	// Preloader
	$(".coda-slider").children('.panel').hide().end().prepend('<p class="loading">Loading...<br /><img src="images/ajax-loader.gif" alt="loading..." /></p>');
});

var sliderCount = 1;

$.fn.codaSlider = function(settings) {

	settings = $.extend({
		autoHeight: true,
		autoHeightEaseDuration: 1000,
		autoHeightEaseFunction: "easeInOutExpo",
		autoSlide: false,
		autoSlideInterval: 7000,
		autoSlideStopWhenClicked: true,
		crossLinking: true,
		dynamicArrows: true,
		dynamicArrowLeftText: "&#171; left",
		dynamicArrowRightText: "right &#187;",
		dynamicTabs: true,
		dynamicTabsAlign: "center",
		dynamicTabsPosition: "top",
		externalTriggerSelector: "a.xtrig",
		firstPanelToLoad: 1,
		panelTitleSelector: "h2.title",
		slideEaseDuration: 1000,
		slideEaseFunction: "easeInOutExpo"
	}, settings);

	return this.each(function(){

		// Uncomment the line below to test your preloader
		// alert("Testing preloader");

		var slider = $(this);

		// Surround the collection of panel divs with a container div (wide enough for all panels to be lined up end-to-end)
		// FANGOHR EDIT
		// Added list item case
		// Moved this to here
		$('.panel:not(li)', slider).wrapAll('<div class="panel-container"></div>');
		$('li.panel', slider).wrapAll('<ol class="panel-container"></ol>');
		// END EDIT

		// FANGOHR EDIT
		// Insert next/previous buttons inside panels
		// add 960.gs classes
		var panels = $('.panel', slider);


		slider.parent().addClass("arrows");
		panels.each(function(index, element){
			el = $(element);

			// Add xx/xx index numbering
			var total = panels.size(); // we don't want to count the last panel
			var ind = (index + 1); // we want to start at 1
				
			if(ind != total) {
				$('h3', el).before('<div class="quiz-index">question ' + ind + '/' + (total - 1) + '</div>');
			}
			

			// If we need arrows
			if (settings.dynamicArrows) {
				el.append('<div class="coda-nav-left grid_3 alpha coda-nav-left-' + index + '"><a href="#">' + settings.dynamicArrowLeftText + '</a></div>');
				el.append('<div class="coda-nav-right grid_3 prefix_1 omega coda-nav-right-' + index + '"><a href="#">' + settings.dynamicArrowRightText + '</a></div>');
			};

		});

		// END EDIT

		var panelWidth = slider.find(".panel").width();
		var panelCount = slider.find(".panel").size();
		var panelContainerWidth = panelWidth*panelCount;
		var navClicks = 0; // Used if autoSlideStopWhenClicked = true


		// Specify the width of the container div (wide enough for all panels to be lined up end-to-end)
		$(".panel-container", slider).css({ width: panelContainerWidth });

		// Specify the current panel.
		// If the loaded URL has a hash (cross-linking), we're going to use that hash to give the slider a specific starting position...
		if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
			var currentPanel = parseInt(location.hash.slice(1));
			var offset = - (panelWidth*(currentPanel - 1));
			$('.panel-container', slider).css({ marginLeft: offset });
		// If that's not the case, check to see if we're supposed to load a panel other than Panel 1 initially...
		} else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) {
			var currentPanel = settings.firstPanelToLoad;
			var offset = - (panelWidth*(currentPanel - 1));
			$('.panel-container', slider).css({ marginLeft: offset });
		// Otherwise, we'll just set the current panel to 1...
		} else {
			var currentPanel = 1;
		};

		// Left arrow click
		$(".coda-nav-left a").click(function(event){
			navClicks++;
			if (currentPanel == 1) {
				offset = - (panelWidth*(panelCount - 1));
				alterPanelHeight(panelCount - 1);
				currentPanel = panelCount;
				slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('li:last a').addClass('current');
			} else {
				currentPanel -= 1;
				alterPanelHeight(currentPanel - 1);
				offset = - (panelWidth*(currentPanel - 1));
				slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().prev().find('a').addClass('current');
			};
			$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);

			var input = $(this).parents('li.panel').prev().find('input:radio');
			input.attr({
				'checked' : false
			})

			if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
			return false;
		});

		// Right arrow click

		$('.answers li').bind('click', function() {

			var li = jQuery(this);
			var fieldset = jQuery('fieldset', li);
			var inputs = jQuery('input', li);


			$('label',li).effect('highlight', { 'color' : 'black' });
			// This is not great but it works OK for now.
			// We'll have to revisit when and if other kinds of inputs become available.

			//inputs.attr({'checked' : 'checked'});

			if(inputs.filter(":submit").size() > '0' || inputs.filter(':checked').size() > '0') {

				navClicks++;
				var nextPanel = (currentPanel + 1);
				var currentHeight = $('.panel:eq(' + currentPanel + ')', slider).height();
				var nextHeight = $('.panel:eq(' + nextPanel + ')', slider).height()
				if (currentPanel == panelCount) {
					offset = 0;
				} else {
					
					offset = - (panelWidth*currentPanel);

					if( currentHeight > nextHeight) {
						alterPanelHeight(currentPanel);
					}
				};
				
				$('.panel-container', slider).stop().delay(250).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction, function() {
					if (currentPanel == panelCount) {
						currentPanel = 1;
						alterPanelHeight(0);
						slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('a:eq(0)').addClass('current');
					} else {
						alterPanelHeight(currentPanel);
						currentPanel += 1;
						slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().next().find('a').addClass('current');
					};
					
				});
				if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
			} else {
				fieldset.effect('highlight',{ 'color' : '#C81123' });
			}

/* 			return false; */
		});
		// END EDIT

		// If we need a dynamic menu
		if (settings.dynamicTabs) {
			var dynamicTabs = '<div class="coda-nav" id="coda-nav-' + sliderCount + '"><ul></ul></div>';
			switch (settings.dynamicTabsPosition) {
				case "bottom":
					slider.parent().append(dynamicTabs);
					break;
				default:
					slider.parent().prepend(dynamicTabs);
					break;
			};
			ul = $('#coda-nav-' + sliderCount + ' ul');
			// Create the nav items
			$('.panel', slider).each(function(n) {
				ul.append('<li class="tab' + (n+1) + '"><a href="#' + (n+1) + '">' + $(this).find(settings.panelTitleSelector).text() + '</a></li>');
			});
			navContainerWidth = slider.width() + slider.siblings('.coda-nav-left').width() + slider.siblings('.coda-nav-right').width();
			ul.parent().css({ width: navContainerWidth });
			switch (settings.dynamicTabsAlign) {
				case "center":
					ul.css({ width: ($("li", ul).width() + 2) * panelCount });
					break;
				case "right":
					ul.css({ float: 'right' });
					break;
			};
		};

		// If we need a tabbed nav
		$('#coda-nav-' + sliderCount + ' a').each(function(z) {
			// What happens when a nav link is clicked
			$(this).bind("click", function() {
				navClicks++;
				$(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current');
				offset = - (panelWidth*z);
				alterPanelHeight(z);
				currentPanel = z + 1;
				$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
				if (!settings.crossLinking) { return false }; // Don't change the URL hash unless cross-linking is specified
			});
		});

		// External triggers (anywhere on the page)
		$(settings.externalTriggerSelector).each(function() {
			// Make sure this only affects the targeted slider
			if (sliderCount == parseInt($(this).attr("rel").slice(12))) {
				$(this).bind("click", function() {
					navClicks++;
					targetPanel = parseInt($(this).attr("href").slice(1));
					offset = - (panelWidth*(targetPanel - 1));
					alterPanelHeight(targetPanel - 1);
					currentPanel = targetPanel;
					// Switch the current tab:
					slider.siblings('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (targetPanel - 1) + ') a').addClass('current');
					// Slide
					$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
					if (!settings.crossLinking) { return false }; // Don't change the URL hash unless cross-linking is specified
				});
			};
		});

		// Specify which tab is initially set to "current". Depends on if the loaded URL had a hash or not (cross-linking).
		if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
			$("#coda-nav-" + sliderCount + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
		// If there's no cross-linking, check to see if we're supposed to load a panel other than Panel 1 initially...
		} else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) {
			$("#coda-nav-" + sliderCount + " a:eq(" + (settings.firstPanelToLoad - 1) + ")").addClass("current");
		// Otherwise we must be loading Panel 1, so make the first tab the current one.
		} else {
			$("#coda-nav-" + sliderCount + " a:eq(0)").addClass("current");
		};

		// Set the height of the first panel
		if (settings.autoHeight) {
			panelHeight = $('.panel:eq(' + (currentPanel - 1) + ')', slider).height();
			slider.css({ height: panelHeight });
		};

		// Trigger autoSlide
		if (settings.autoSlide) {
			slider.ready(function() {
				setTimeout(autoSlide,settings.autoSlideInterval);
			});
		};

		function alterPanelHeight(x) {
			if (settings.autoHeight) {
				panelHeight = $('.panel:eq(' + x + ')', slider).height();
				slider.animate({ height: panelHeight }, settings.autoHeightEaseDuration, settings.autoHeightEaseFunction);
			};
		};

		function autoSlide() {
			if (navClicks == 0 || !settings.autoSlideStopWhenClicked) {
				if (currentPanel == panelCount) {
					var offset = 0;
					currentPanel = 1;
				} else {
					var offset = - (panelWidth*currentPanel);
					currentPanel += 1;
				};
				alterPanelHeight(currentPanel - 1);
				// Switch the current tab:
				slider.siblings('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (currentPanel - 1) + ') a').addClass('current');
				// Slide:
				$('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
				setTimeout(autoSlide,settings.autoSlideInterval);
			};
		};

		// Kill the preloader
		$('.panel', slider).show().end().find("p.loading").remove();
		slider.removeClass("preload");

		sliderCount++;

	});
};