/* Menu Accordian
------------------------------------------------------------------------------------------------------------- */
function initMenus() {
	$('ul.menu ul').hide();
	$.each($('ul.menu'), function(){
		var cookie = $.cookie(this.id);
		if(cookie != null && String(cookie).length < 1) {
			$('#' + this.id + '.expandfirst ul:first').show();
		}
		else {			
			$('#' + this.id + ' .' + cookie).next().show();
		}
	});
	$('ul.menu li a').click(
		function() {

			var checkElement = $(this).next();
			var parent = this.parentNode.parentNode.id;

			if($('#' + parent).hasClass('noaccordion')) {
				if((String(parent).length > 0) && (String(this.className).length > 0)) {
					if($(this).next().is(':visible')) {
						$.cookie(parent, null);
					}
					else {
						$.cookie(parent, this.className);
					}
					$(this).next().slideToggle('normal');
				}				
			}
			if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
				if($('#' + parent).hasClass('collapsible')) {
					$('#' + parent + ' ul:visible').slideUp('normal');
				}
				return false;
			}
			if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
				$('#' + parent + ' ul:visible').slideUp('normal');
				if((String(parent).length > 0) && (String(this.className).length > 0)) {
					$.cookie(parent, this.className);
				}
				checkElement.slideDown('normal');
				return false;
			}
		}
	);
}

/* jQuery Cookie Plugin
------------------------------------------------------------------------------------------------------------- */
jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};

/* jQuery Slider
------------------------------------------------------------------------------------------------------------- */
jQuery(function(){
	jQuery("div.csw").prepend("<p class='loading'>Loading...<br /><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
  }, 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 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!
					var cnt = - (panelWidth*z);
					cPanel = z + 1;
					jQuery(this).parent().parent().parent().next().find("div.panelContainer").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
				});
			});
			
			// 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 + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
			} else {
				jQuery("div#stripNav" + j + " a:eq(0)").addClass("current");
			}
			
		});
		
		j++;
  });
};

/* Style Switcher
------------------------------------------------------------------------------------------------------------- */
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

/* Jquery Functions
------------------------------------------------------------------------------------------------------------- */
$(document).ready(function(){
	$('#nav-left').corner('10px');
	initMenus();
	
	$(".jqzoom").jqueryzoom({
				xzoom: 266, //zooming div default width(default width value is 200)
				yzoom: 234, //zooming div default width(default height value is 200)
				offset: 13, //zooming div default offset(default offset value is 10)
				position: "right", //zooming div position(default position value is "right")
 				preload:1,
				lens:1
			});
});