/*
	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(){
	// Preloader
	$(".content-banner").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: false,
		crossLinking: true,
		dynamicArrows: true,
		dynamicArrowLeftText: "Previous",
		dynamicArrowRightText: "Next",
		dynamicTabs: false,
		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.find(".content-banner").before('<a href="#" id="arrow-nav-left' + sliderCount + '" class="arrow-nav-left">' + settings.dynamicArrowLeftText + '</a>');
			slider.find(".content-banner").after('<a href="#" id="arrow-nav-right' + sliderCount + '" class="arrow-nav-right">' + settings.dynamicArrowRightText + '</a>');
		};
		
		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
		$("#arrow-nav-left" + sliderCount).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
		$('#arrow-nav-right' + sliderCount).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;
		});
		
		
		// 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++;
		
	});
};