/*
 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...</p>');
});

var sliderCount = 1;

$.fn.codaSlider = function(settings) {

 settings = $.extend({
 autoHeight: true,
 autoHeightEaseDuration: 1000,
 autoHeightEaseFunction: "easeInOutExpo",
 autoSlide: true,
 autoSlideInterval: 4000,
 autoSlideStopWhenClicked: true,
 crossLinking: true,
 dynamicArrows: true,
 dynamicArrowLeftText: "&nbsp;",
 dynamicArrowRightText: "&nbsp;",
 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);

 // If we need arrows
 if (settings.dynamicArrows) {
 slider.parent().addClass("arrows");
 slider.before('<div class="coda-nav-left" id="coda-nav-left-' + sliderCount + '"><a href="#">' + settings.dynamicArrowLeftText + '</a></div>');
 slider.after('<div class="coda-nav-right" id="coda-nav-right-' + sliderCount + '"><a href="#">' + settings.dynamicArrowRightText + '</a></div>');
 };

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

 // Surround the collection of panel divs with a container div (wide enough for all panels to be lined up end-to-end)
 $('.panel', slider).wrapAll('<div class="panel-container"></div>');
 // 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-" + sliderCount + " a").click(function(){
 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);
 if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
 return false;
 });

// Right arrow click
 $('#coda-nav-right-' + sliderCount + ' a').click(function(){
 navClicks++;
 if (currentPanel == panelCount) {
 offset = 0;
 currentPanel = 1;
 alterPanelHeight(0);
 slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('a:eq(0)').addClass('current');
 } else {
 offset = - (panelWidth*currentPanel);
 alterPanelHeight(currentPanel);
 currentPanel += 1;
 slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().next().find('a').addClass('current');
 };
 $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
 if (settings.crossLinking) { location.hash = currentPanel }; // Change the URL hash (cross-linking)
 return false;
 });

 // 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({ 'opacity':0 }, settings.slideEaseDuration/3,function(){
 $('.panel-container', slider).animate({ marginLeft: offset }, 100, function() {
$('.panel-container', slider).animate({ 'opacity':1 }, settings.slideEaseDuration/3,settings.slideEaseFunction)
 })
 });
 //$('.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({ 'opacity':0 }, settings.slideEaseDuration/3,function(){
 $('.panel-container', slider).animate({ marginLeft: offset }, 100, function() {
 $('.panel-container', slider).animate({ 'opacity':1 }, settings.slideEaseDuration/3,settings.slideEaseFunction)
 })
 });
 //$('.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++;

 });
};