/*
	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
*/

jQuery(function(){
	jQuery("div.csw").prepend("<p class='loading'><img src='img/ajax-loader.gif' alt='loading...' title='loading...' / > Loading...</p>");
});
var j = 0;

jQuery.fn.codaSlider = function(settings) {
	 settings = jQuery.extend({
     easeFunc: "expoinout",
     easeTime: 1000,
     toolTip: true
  }, settings);
	return this.each(function(){
		var container = jQuery(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));
			jQuery(this).find("div.panelContainer").css({ left: cnt });
		// Otherwise, we'll just set the current panel to 1...
		} else { 
			var cPanel = 1;
		};
		
		// Create appropriate nav
		container.each(function(i) {
			
			// Create the Left and Right arrows
			jQuery(this).before("<div class='stripNavL' id='stripNavL" + j + "'><a href='#'>Left<\/a><\/div>");
			jQuery(this).after("<div class='stripNavR' id='stripNavR" + j + "'><a href='#'>Right<\/a><\/div>");
			
				
			// Create the Tabs
			jQuery(this).before("<div class='stripNav' id='stripNav" + j + "'><ul><\/ul><\/div>");
			jQuery(this).find("div.panel").each(function(n) {
			jQuery("div#stripNav" + j + " ul").append("<li class='tab" + (n+1) + "'><a name='tab" + (n+1) + "' href='#logo" + (n+1) + "'>&nbsp;&nbsp;<\/a><\/li>");
				
			
				
			});
			
			// Tab nav
			jQuery("div#stripNav" + j + " a").each(function(z) {
				// Figure out the navWidth by adding up the width of each li
				navWidth += jQuery(this).parent().width();
				// What happens when a nav link is clicked
				jQuery(this).bind("click", function() {
					jQuery(this).addClass("current").parent().parent().find("a").not(jQuery(this)).removeClass("current"); // wow!
					var cnt = - (panelWidth*z);
					cPanel = z + 1;
					jQuery(this).parent().parent().parent().next().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
					
					if(cPanel==panelCount){
						 jQuery(container).parent().find(".stripNavR")[0].style.display="none";
					//document.getElementById("stripNavR0").style.display="none";	
				
					}else{
						jQuery(container).parent().find(".stripNavR")[0].style.display="inline";
					//document.getElementById("stripNavR0").style.display="inline";	
					}
					if(cPanel==1){
						jQuery(container).parent().find(".stripNavL")[0].style.display="none";
					//document.getElementById("stripNavL0").style.display="none";	
				
					}else{
						jQuery(container).parent().find(".stripNavL")[0].style.display="inline";
					//document.getElementById("stripNavL0").style.display="inline";	
					}
					
					
					});
			});
			
			
			// Left nav
			jQuery("div#stripNavL" + j + " a").click(function(){
				if (cPanel == 1) {
					var cnt = - (panelWidth*(panelCount - 1));
					cPanel = panelCount;
					jQuery(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));
					jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().prev().find("a").addClass("current");
				};
				
				if(cPanel==1){
					  jQuery(container).parent().find(".stripNavL")[0].style.display="none";
					//document.getElementById("stripNavL" + j).style.display="none";	
					}
					
				if(cPanel!=panelCount){
					  jQuery(container).parent().find(".stripNavR")[0].style.display="inline";
					//document.getElementById("stripNavR" + j).style.display="inline";	
					}
				jQuery(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
			jQuery("div#stripNavR" + j + " a").click(function(){

				if (cPanel == panelCount) {
					var cnt = 0;
					cPanel = 1;
					jQuery(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;
					jQuery(this).parent().parent().find("div.stripNav a.current").removeClass("current").parent().next().find("a").addClass("current");
				};
				
				if (cPanel!=1) {
				//alert("stripNavL");
				     jQuery(container).parent().find(".stripNavL")[0].style.display="inline";	
					}
				if(cPanel==panelCount){
					jQuery(container).parent().find(".stripNavR")[0].style.display="none";	
					}
				jQuery(this).parent().parent().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
				// Change the URL hash (cross-linking)...

			
		location.hash = cPanel;
				return false;
			});
			
			if (cPanel==1) {
				//alert("stripNavL");
				document.getElementById("stripNavL" + j).style.display="none";	
					}
					
			if(cPanel==panelCount){
					document.getElementById("stripNavR" + j).style.display="none";	}
					
					
			// Same-page cross-linking
		jQuery("a.cross-link").click(function(){
				
				jQuery(this).parents().find(".stripNav ul li a:eq(" + (parseInt(jQuery(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
			jQuery("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) {
				jQuery("div#stripNav" + j + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
			} else {
				jQuery("div#stripNav" + j + " a:eq(0)").addClass("current");
			}
			
	
		});
		
		j++;
  });
};
