// jTabs Plugin for jQuery - Version 0.3
// by Angel Grablev for Enavu Web Development network (enavu.com)
// Dual license under MIT and GPL :) enjoy
/*

To use simply call .jTabs() on the element that holds your tabs and pass in content for the element that holds your tabs content:
jQuery("ul.tabs").jTabs({content: "content_class"}); 

you can specify the following options:
content = the element that will hold the divs with the content of each tab
equal_height = true/false to enable the columns to find the highest tab and set the height across all tabs
cookies = true/false will use browser cookies to store which tab the user is on
animate = true/false if you would like to use an animation effect when you switch tabs
effect = which animation effect would you like to use (default is fade) other option includes slide
speed = if you have animation to true you can choose how long to take the effect to take place

*/
(function($) {
	$.fn.jTabs = function(options) {
		var defaults = {
			content: "div.content",
			equal_height: false,
			cookies: false,
			animate: false,
			effect: "fade",
			speed: 400
		};
		var options = $.extend(defaults, options);

		return this.each(function() {
			// object is the selected pagination element list
			obj = jQuery(this);

			var objTabs = jQuery(options.content);
			var number_of_items = obj.children("li").size();
			var tabIndex = [];
			var tabs = [];


			// create array of tab index items
			for (i = 1; i <= number_of_items; i++) { tabIndex[i] = obj.find("li:nth-child(" + i + ")"); tabIndex[i].attr("title", i); }

			// create array tabs
			for (i = 1; i <= number_of_items; i++) { tabs[i] = jQuery(options.content + "> div:nth-child(" + i + ")"); }

			// if equal height on
			if (options.equal_height) {
				var maxHeight = 0;
				jQuery(options.content).children("div").each(function() {
					if (jQuery(this).outerHeight() > maxHeight) { maxHeight = jQuery(this).outerHeight(); }
				});
				jQuery(options.content).height(maxHeight);
			}

			// initiate the current tab
			if (options.cookies) {
				if (getCookie("page")) { showTab(getCookie("page")); }
				else { setCookie("page", 1, 999); showTab(1); }
			} else {
				showTab(1);
			}

			function showTab(num) {
				tabIndex[num].addClass("active").siblings().removeClass("active");
				if (!options.animate) { tabs[num].show().siblings().hide(); }
				else {

					switch (options.effect) {
						case "fade":
							tabs[num].fadeIn(options.speed).siblings().hide();
							break;
						case "slide":
							tabs[num].slideDown(options.speed).siblings().hide();
							break;
					}

				}
			}


			obj.find("li").live("click", function(e) {
				e.preventDefault();
				var tab_num = jQuery(this).attr("title");
				showTab(tab_num);
				if (options.cookies) setCookie("page", tab_num, 999);
			});


			/* code to handle cookies */
			function setCookie(c_name, value, expiredays) {
				var exdate = new Date(); exdate.setDate(exdate.getDate() + expiredays); document.cookie = c_name + "=" + escape(value) +
((expiredays == null) ? "" : ";expires=" + exdate.toUTCString());
			}
			function getCookie(c_name) {
				if (document.cookie.length > 0) {
					c_start = document.cookie.indexOf(c_name + "="); if (c_start != -1)
					{ c_start = c_start + c_name.length + 1; c_end = document.cookie.indexOf(";", c_start); if (c_end == -1) c_end = document.cookie.length; return unescape(document.cookie.substring(c_start, c_end)); } 
				}
				return "";
			}
		});


	};
})(jQuery);