/*
   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(){
   $("body").removeClass("slider-no-js");
   $(".slider").children('.panel').hide().end().prepend('<p class="loading">Loading... Hang in there!</p>');
});

var sliderCount = 1;

$.fn.sliderSlider = function(settings) {

   settings = $.extend({
      autoHeight: true,
      autoHeightEaseDuration: 1000,
      autoHeightEaseFunction: "easeInOutExpo",
      autoSlide: true,
      autoSlideInterval: 7000,
      autoSlideStopWhenClicked: true,
      crossLinking: false,
      dynamicArrows: true,
      dynamicArrowLeftText: "Previous",
      dynamicArrowRightText: "Next",
      dynamicTabs: true,
      dynamicTabsAlign: "center",
      dynamicTabsPosition: "bottom",
      externalTriggerSelector: "a.xtrig",
      firstPanelToLoad: 1,
      panelTitleSelector: ".panel h2",
      slideEaseDuration: 1000,
      slideEaseFunction: "easeInOutExpo"
   }, settings);
   
   return this.each(function(){
      
      var slider = $(this);
      
      if (settings.dynamicArrows) {
         slider.parent().addClass("arrows");
         slider.before('<div class="nav-left" id="nav-left-' + sliderCount + '"><a href="#" class="arrow">' + settings.dynamicArrowLeftText + '</a></div>');
         slider.after('<div class="nav-right" id="nav-right-' + sliderCount + '"><a href="#" class="arrow">' + settings.dynamicArrowRightText + '</a></div>');
      };
      
      var panelWidth = slider.find(".panel").width();
      var panelCount = slider.find(".panel").size();
      var panelContainerWidth = panelWidth*panelCount;
      var navClicks = 0;
      
      $('.panel', slider).wrapAll('<div class="panel-container"></div>');
      $(".panel-container", slider).css({ width: panelContainerWidth });
      
      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 });

      } else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) { 
         var currentPanel = settings.firstPanelToLoad;
         var offset = - (panelWidth*(currentPanel - 1));
         $('.panel-container', slider).css({ marginLeft: offset });

      } else { 
         var currentPanel = 1;
      };
         

      $("#nav-left-" + sliderCount + " a").click(function(){
         navClicks++;
         if (currentPanel == 1) {
            offset = - (panelWidth*(panelCount - 1));
            alterPanelHeight(panelCount - 1);
            currentPanel = panelCount;
            slider.siblings('.pagination').find('a.active').removeClass('active').parents('ul').find('li:last a').addClass('active');
         } else {
            currentPanel -= 1;
            alterPanelHeight(currentPanel - 1);
            offset = - (panelWidth*(currentPanel - 1));
            slider.siblings('.pagination').find('a.active').removeClass('active').parent().prev().find('a').addClass('active');
         };
         $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
         if (settings.crossLinking) { location.hash = currentPanel };
         return false;
      });
         
      $('#nav-right-' + sliderCount + ' a').click(function(){
         navClicks++;
         if (currentPanel == panelCount) {
            offset = 0;
            currentPanel = 1;
            alterPanelHeight(0);
            slider.siblings('.pagination').find('a.active').removeClass('active').parents('ul').find('a:eq(0)').addClass('active');
         } else {
            offset = - (panelWidth*currentPanel);
            alterPanelHeight(currentPanel);
            currentPanel += 1;
            slider.siblings('.pagination').find('a.active').removeClass('active').parent().next().find('a').addClass('active');
         };
         $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
         if (settings.crossLinking) { location.hash = currentPanel };
         return false;
      });
      
      if (settings.dynamicTabs) {
         var dynamicTabs = '<div class="pagination" id="nav-' + sliderCount + '"><ul></ul></div>';
         switch (settings.dynamicTabsPosition) {
            case "bottom":
               slider.parent().append(dynamicTabs);
               break;
            default:
               slider.parent().prepend(dynamicTabs);
               break;
         };
         ul = $('#nav-' + sliderCount + ' ul');

         $('.panel', slider).each(function(n) {
            ul.append('<li class="tab' + (n+1) + '"><a href="#' + (n+1) + '">' + $(this).find(settings.panelTitleSelector).text() + '</a></li>');                                   
         });
         navContainerWidth = slider.width() + slider.siblings('.pagination-left').width() + slider.siblings('.pagination-right').width();
         ul.parent().css({ width: navContainerWidth });
         switch (settings.dynamicTabsAlign) {
            case "center":
               ul.css({ width: ($("li", ul).width() + 6) * panelCount });
               break;
            case "right":
               ul.css({ float: 'right' });
               break;
         };
      };
         
      $('#nav-' + sliderCount + ' a').each(function(z) {
         
         $(this).bind("click", function() {
            navClicks++;
            $(this).addClass('active').parents('ul').find('a').not($(this)).removeClass('active');
            offset = - (panelWidth*z);
            alterPanelHeight(z);
            currentPanel = z + 1;
            $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
            if (!settings.crossLinking) { return false };
         });
      });

      $(settings.externalTriggerSelector).each(function() {
         if (sliderCount == parseInt($(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;
               slider.siblings('.pagination').find('a').removeClass('active').parents('ul').find('li:eq(' + (targetPanel - 1) + ') a').addClass('active');
               $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
               if (!settings.crossLinking) { return false };
            });
         };
      });
         
      if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
         $("#nav-" + sliderCount + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("active");
      } else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) {
         $("#nav-" + sliderCount + " a:eq(" + (settings.firstPanelToLoad - 1) + ")").addClass("active");
      } else {
         $("#nav-" + sliderCount + " a:eq(0)").addClass("active");
      };
      
      if (settings.autoHeight) {
         panelHeight = $('.panel:eq(' + (currentPanel - 1) + ')', slider).height();
         slider.css({ height: panelHeight });
      };
      
      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);
            slider.siblings('.pagination').find('a').removeClass('active').parents('ul').find('li:eq(' + (currentPanel - 1) + ') a').addClass('active');
            $('.panel-container', slider).animate({ marginLeft: offset }, settings.slideEaseDuration, settings.slideEaseFunction);
            setTimeout(autoSlide,settings.autoSlideInterval);
         };
      };
      
      $('.panel', slider).show().end().find("p.loading").remove();
      slider.removeClass("preload");
      
      sliderCount++;
      
   });
};