/*
	jQuery Coda-Slider v1.1 - http://www.ndoherty.com/coda-slider
	
	Copyright (c) 2007 Niall Doherty
	
	Inspired by the clever folks at http://www.panic.com/coda
	Many thanks to Gian Carlo Mingati. Coda-Slider is a heavily modified version of his slideViewer, which can be found at  http://www.gcmingati.net/wordpress/wp-content/lab/jquery/imagestrip/imageslide-plugin.html
	
	Requirements:
	-  jQuery 1.2 ... available via  http://www.jquery.com
	-  jQuery easing plugin (1.2) ... available via  http://gsgd.co.uk/sandbox/jquery/easing/
	- jQuery easing compatability plugin ... available via  http://gsgd.co.uk/sandbox/jquery/easing/
	- CSS included in index.html
*/

$(function(){
	$("div.csw").prepend("<p class='loading'>Inhalt wird geladen...<br /><img src='fileadmin/images/slider/ajax-loader.gif' alt='loading...'/ ></p>");

});
var j = 0;
jQuery.fn.codaSlider = function(settings) {
	 settings = jQuery.extend({
     easeFunc: "expoinout",
     easeTime: 750,
     toolTip: false
  }, settings);
	return this.each(function(){
		var container = $(this);
		// Remove the preloader gif...
		container.find("p.loading").remove();
		// Self-explanatory...
		container.removeClass("csw").addClass("stripViewer");
		// Get the width of a panel, set from CSS...
		var panelWidth = container.find("div.panel").width();
		// panelCount gives us a count of the panels in the container...
		var panelCount = container.find("div.panel").size();
		// Calculate the width of all the panels when lined up end-to-end...
		var stripViewerWidth = panelWidth*panelCount;
		// Use the above width to specify the CSS width for the panelContainer element...
		container.find("div.panelContainer").css("width" , stripViewerWidth);
		// Set the navWidth as a multiple of panelCount to account for margin-right on each li
		var navWidth = panelCount*2;
		
		// 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 (location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
			var cPanel = parseInt(location.hash.slice(1));
			var cnt = - (panelWidth*(cPanel - 1));
			$(this).find("div.panelContainer").css({ left: cnt });
		// Otherwise, we'll just set the current panel to 1...
		} else { 
			var cPanel = 1;
		};
		
		var seoHit = false;
		var referrer = document.referrer;
		if(referrer) {
			var queryPrefix = "q=";
			var startPos = referrer.toLowerCase().indexOf(queryPrefix);
			if ((startPos < 0) || (startPos + queryPrefix.length == referrer.length)) {
			} else {
				var endPos = referrer.indexOf("&", startPos);
				if (endPos < 0) {
					endPos = referrer.length;
				}
				var queryString = referrer.substring(startPos + queryPrefix.length, endPos);
				// fix the space characters
				queryString = queryString.replace(/\+\s+\+/, "+");
				queryString = queryString.replace(/%20/gi, " ");
				queryString = queryString.replace(/\+/gi, " ");
				// remove the quotes (if you're really creative, you could search for the
				// terms within the quotes as phrases, and everything else as single terms)
				queryString = queryString.replace(/%22/gi, "");
				queryString = queryString.replace(/\"/gi, "");
				var lcQueryString = queryString.toLowerCase();
				
				var queryArray = lcQueryString.split(" ");
				
				var panelId = 1;
				$(this).find("div.panel").each(function(n) {
					if(!seoHit) {
						for (var i = 0; i < queryArray.length; i++) {
							var tags = $(this).find(".tags:first").html();
							if(tags && queryArray[i] != '') {
								tags = tags.toLowerCase();
								var found = tags.indexOf(queryArray[i]);
								if(found > -1) {
									seoHit = true;
									cPanel = panelId;
									location.hash = cPanel;
								}
							}
						}
					}
					panelId = panelId + 1;
				});
			}
		}
		
		// Create appropriate nav
		container.each(function(i) {
			
			// Create the Left and Right arrows
			$(this).before("<div class='stripNavL' id='stripNavL" + j + "'><a href='#'>Left</a><\/div>");
			$(this).after("<div class='stripNavR' id='stripNavR" + j + "'><a href='#'>Right</a><\/div>");
			
			// Create the Tabs
			$(this).before("<div class='stripNav' id='stripNav" + j + "'><ul><\/ul><\/div>");
			$(this).find("div.panel").each(function(n) {
				$("div#stripNav" + j + " ul").append("<li class='tab" + (n+1) + "'><a href='" + location + "#" + (n+1) + "'>" + $(this).attr("title") + "<\/a><\/li>");												
			});
			
			// Tab nav
			$("div#stripNav" + j + " a").each(function(z) {
				// Figure out the navWidth by adding up the width of each li
				navWidth += $(this).parent().width();
				// What happens when a nav link is clicked
				$(this).bind("click", function() {
					$(this).addClass("current").parent().parent().find("a").not($(this)).removeClass("current"); // wow!
					var cnt = - (panelWidth*z);
					cPanel = z + 1;
					$(this).parent().parent().parent().next().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
				});
			});
			
			// Left nav
			$("div#stripNavL" + j + " a").click(function(){
				if (cPanel == 1) {
					var cnt = - (panelWidth*(panelCount - 1));
					cPanel = panelCount;
					$(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().parent().find("li:last a").addClass("current");
				} else {
					cPanel -= 1;
					var cnt = - (panelWidth*(cPanel - 1));
					$(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().prev().find("a").addClass("current");
				};
				$(this).parent().parent().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
				// Change the URL hash (cross-linking)...
				location.hash = cPanel;
				return false;
			});
			
			// Right nav
			$("div#stripNavR" + j + " a").click(function(){
				if (cPanel == panelCount) {
					var cnt = 0;
					cPanel = 1;
					$(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().parent().find("a:eq(0)").addClass("current");
				} else {
					var cnt = - (panelWidth*cPanel);
					cPanel += 1;
					$(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().next().find("a").addClass("current");
				};
				$(this).parent().parent().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
				// Change the URL hash (cross-linking)...
				location.hash = cPanel;
				return false;
			});
			
			// Same-page cross-linking
			$("a.cross-link").click(function(){
				$(this).parents().find(".stripNav ul li a:eq(" + (parseInt($(this).attr("href").slice(1)) - 1) + ")").trigger('click');
			});	
			
			// Set the width of the nav using the navWidth figure we calculated earlier. This is so the nav can be centred above the slider
			$("div#stripNav" + j).css("width" , navWidth);
			
			// Specify which tab is initially set to "current". Depends on if the loaded URL had a hash or not (cross-linking).
			if (location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
				$("div#stripNav" + j + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
			} else {
				$("div#stripNav" + j + " a:eq(0)").addClass("current");
			}
			
			if(seoHit == true) {
				$(this).parents().find(".stripNav ul li a:eq(" + (location.hash.slice(1) - 1) + ")").trigger('click');
			}
			
		});
		
		j++;
  });
};