/*
	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
	
	Modified (Sept/Oct 2009) for NETconsent.com
	- Commented out left/right nav buttons
	- Modified behaviour of tabs to make setting "current" more capable (sets current panel title as UL class)
	- Added ability to set named cookie based on tab clicks
*/

jQuery(function(){
	jQuery("div.csw").prepend('<p class="loading"><img src="/images/ajax-loader.gif" alt="Loading..."/ ></p>');
});
var j = 0;
jQuery.fn.codaSlider = function(settings) {
	 settings = jQuery.extend({
     easeFunc: "expoinout",
     easeTime: 750,
     toolTip: false,
     tabsBefore: false,
     tabsNavAdditionalClass: "",
     useCookies: false,
     cookieName: ""
  }, 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 either just set the current panel to 1...
		} else { 
		    // ... or use value from cookie/userpref got from codebehind
		    if (settings.useCookies)
		    {
		        if ($("input.hidden-userprefval").val())
		        {
		            var prefVal = parseInt($("input.hidden-userprefval").val());
			        if (!isNaN(prefVal))
			        {
			            var cPanel = prefVal + 1;
			            var cnt = - (panelWidth*(cPanel - 1));
			            jQuery(this).find("div.panelContainer").css({ left: cnt });		        
			        }
		        }
		        else
		        {
		            var cPanel = 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>");
			
			var navClass = "stripNav";
			if (settings.tabsNavAdditionalClass != "")
			{
			    navClass += " " + settings.tabsNavAdditionalClass;
			}
			
			// Create the Tabs
			if (settings.tabsBefore)
			{
			    jQuery(this).before("<div class='" + navClass + "' id='stripNav" + j + "'><ul><\/ul><\/div>");
			}
			else
			{
			    jQuery(this).after("<div class='" + navClass + "' 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 href='#" + (n+1) + "'>" + jQuery(this).attr("title") + "<\/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!
					jQuery(this).parent().addClass("current").parent().find("li").not(jQuery(this).parent()).removeClass("current"); // wow!

					var cnt = - (panelWidth*z);
					cPanel = z + 1;
					
					if (settings.tabsBefore)
					{
					    jQuery(this).parent().parent().parent().next().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
					}
					else
					{
					    jQuery(this).parent().parent().parent().prev().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
					}
					
					// add the current panel class to the nav ul element
                    jQuery(this).parent().parent().attr("class", jQuery("div.panel:eq(" + (cPanel - 1) + ")").attr("class").split(" ").slice(1));
                    
                    if (settings.useCookies && settings.cookieName != "")
                    {
				        // set a cookie to remember this
				        //$.cookie("IndustryPreference", cPanel - 1);
				        $.cookie(settings.cookieName, cPanel - 1);
				    }
				});
			});
			
			// 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");
				};
				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");
				};
				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;
			});
			
			// 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 + " ul").attr("class", jQuery("div.panel:eq(" + (location.hash.slice(1) - 1) + ")").attr("class").split(" ").slice(1));
				jQuery("div#stripNav" + j + " li:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
			} else {
			    // ... or if we have a user pref value set use it to set current tab and ul class
			    if (settings.useCookies)
			    {
                    if ($("input.hidden-userprefval").val())
		            {
		                var prefVal = parseInt($("input.hidden-userprefval").val());
			            if (!isNaN(prefVal))
			            {
			                jQuery("div#stripNav" + j + " ul").attr("class", jQuery("div.panel:eq(" + (prefVal) + ")").attr("class").split(" ").slice(1));
			                jQuery("div#stripNav" + j + " li:eq(" + (prefVal) + ")").addClass("current");
			            }
		            }
		            else
		            {
		                jQuery("div#stripNav" + j + " li:eq(0)").addClass("current");
		            }
		        }
		        else 
		        {
			        jQuery("div#stripNav" + j + " li:eq(0)").addClass("current");
			    }
			}
			
		});
		
		j++;
  });
};