/*
* loopedSlider 0.5.6 - jQuery plugin
* written by Nathan Searles
* http://nathansearles.com/loopedslider/
*
* Copyright (c) 2009 Nathan Searles (http://nathansearles.com/)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* Built for jQuery library
* http://jquery.com
* Compatible with jQuery 1.3.2+
*
*/

/*
* markup example for $("#loopedSlider").loopedSlider();
*
* <div id="loopedSlider">
* <div class="container">
* <div class="slides">
* <div><img src="01.jpg" alt="" /></div>
* <div><img src="02.jpg" alt="" /></div>
* <div><img src="03.jpg" alt="" /></div>
* <div><img src="04.jpg" alt="" /></div>
* </div>
* </div>
* <a href="#" class="previous">previous</a>
* <a href="#" class="next">next</a>
* </div>
*
*/

if(typeof jQuery != 'undefined') {
	jQuery(function($) {
		$.fn.extend({
		loopedSlider: function(options) {
		var settings = $.extend({}, $.fn.loopedSlider.defaults, options);

		return this.each(
		function() {
			if($.fn.jquery < '1.3.2') {return;}
			var $t = $(this);
			var o = $.metadata ? $.extend({}, settings, $t.metadata()) : settings;

			var distance = 0;
			var times = 1;
			var slides = $(o.slides,$t).children().size();
			var width = $(o.slides,$t).children().outerWidth();
			var position = 0;
			var active = false;
			var number = 0;
			var interval = 0;
			var restart = 0;
			var pagination = $("."+o.pagination+" li a",$t);

			if(o.addPagination && !$(pagination).length){
				var buttons = slides;
				$($t).append("<ul class="+o.pagination+">");
				$(o.slides,$t).children().each(function(){
					if (number<buttons) {
						$("."+o.pagination,$t).append("<li><a rel="+(number+1)+" href=\"#\" >"+(number+1)+"</a></li>");
						number = number+1;
					} else {
						number = 0;
						return false;
					}
					$("."+o.pagination+" li a:eq(0)",$t).parent().addClass("active");
				});
				pagination = $("."+o.pagination+" li a",$t);
			} else {
				$(pagination,$t).each(function(){
					number=number+1;
					$(this).attr("rel",number);
					$(pagination.eq(0),$t).parent().addClass("active");
				});
			}
			
			if (slides===1) {
				$(o.slides,$t).children().css({position:"absolute",left:position,display:"block"});
				return;
			}
			
			$(o.slides,$t).css({width:(slides*width)});
			
			$(o.slides,$t).children().each(function(){
				$(this).css({position:"absolute",left:position,display:"block"});
				position=position+width;
			});
			
			$(o.slides,$t).children(":eq("+(slides-1)+")").css({position:"absolute",left:-width});
			
			if (slides>3) {
				$(o.slides,$t).children(":eq("+(slides-1)+")").css({position:"absolute",left:-width});
			}
			
			if(o.autoHeight){autoHeight(times);}
			
			$(".next",$t).click(function(){
				if(active===false) {
					animate("next",true);
					if(o.autoStart){
						if (o.restart) {autoStart();}
						else {clearInterval(sliderIntervalID);}
					}
				} return false;
			});

			$(".previous",$t).click(function(){
				if(active===false) {
					animate("prev",true);
					if(o.autoStart){
						if (o.restart) {autoStart();}
						else {clearInterval(sliderIntervalID);}
					}
				} return false;
			});

			if (o.containerClick) {
				$(o.container,$t).click(function(){
					if(active===false) {
						animate("next",true);
						if(o.autoStart){
							if (o.restart) {autoStart();}
							else {clearInterval(sliderIntervalID);}
						}
					} return false;
				});
			}
			
			$(pagination,$t).click(function(){
				if ($(this).parent().hasClass("active")) {return false;}
				else {
					times = $(this).attr("rel");
					$(pagination,$t).parent().siblings().removeClass("active");
					$(this).parent().addClass("active");
					animate("fade",times);
					if(o.autoStart){
						if (o.restart) {autoStart();}
						else {clearInterval(sliderIntervalID);}
					}
				} return false;
			});

			if (o.autoStart) {
				sliderIntervalID = setInterval(function(){
					if(active===false) {animate("next",true);}
				},o.autoStart);
				function autoStart() {
					if (o.restart) {
						clearInterval(sliderIntervalID,interval);
						clearTimeout(restart);
						restart = setTimeout(function() {
							interval = setInterval( function(){
								animate("next",true);
							},o.autoStart);
						},o.restart);
					} else {
						sliderIntervalID = setInterval(function(){
							if(active===false) {animate("next",true);}
						},o.autoStart);
					}
				};
			}

			function current(times) {
				if(times===slides+1){times = 1;}
				if(times===0){times = slides;}
				$(pagination,$t).parent().siblings().removeClass("active");
				$(pagination+"[rel='" + (times) + "']",$t).parent().addClass("active");
			};

			function autoHeight(times) {
				if(times===slides+1){times=1;}
				if(times===0){times=slides;}
				var getHeight = $(o.slides,$t).children(":eq("+(times-1)+")",$t).outerHeight();
				$(o.container,$t).animate({height: getHeight},o.autoHeight);
			};

			function animate(dir,clicked){
				active = true;
				switch(dir){
					case "next":
						times = times+1;
						distance = (-(times*width-width));
						current(times);
						if(o.autoHeight){autoHeight(times);}
						if(slides<3){
						if (times===3){$(o.slides,$t).children(":eq(0)").css({left:(slides*width)});}
						if (times===2){$(o.slides,$t).children(":eq("+(slides-1)+")").css({position:"absolute",left:width});}
						}
						$(o.slides,$t).animate({left: distance}, o.slidespeed,function(){
						if (times===slides+1) {
						times = 1;
						$(o.slides,$t).css({left:0},function(){$(o.slides,$t).animate({left:distance})});
						$(o.slides,$t).children(":eq(0)").css({left:0});
						$(o.slides,$t).children(":eq("+(slides-1)+")").css({ position:"absolute",left:-width});
						}
						if (times===slides) $(o.slides,$t).children(":eq(0)").css({left:(slides*width)});
						if (times===slides-1) $(o.slides,$t).children(":eq("+(slides-1)+")").css({left:(slides*width-width)});
						active = false;
						});
					break;
					
					case "prev":
						times = times-1;
						distance = (-(times*width-width));
						current(times);
						if(o.autoHeight){autoHeight(times);}
						if (slides<3){
						if(times===0){$(o.slides,$t).children(":eq("+(slides-1)+")").css({position:"absolute",left:(-width)});}
						if(times===1){$(o.slides,$t).children(":eq(0)").css({position:"absolute",left:0});}
						}
						$(o.slides,$t).animate({left: distance}, o.slidespeed,function(){
						if (times===0) {
						times = slides;
						$(o.slides,$t).children(":eq("+(slides-1)+")").css({position:"absolute",left:(slides*width-width)});
						$(o.slides,$t).css({left: -(slides*width-width)});
						$(o.slides,$t).children(":eq(0)").css({left:(slides*width)});
						}
						if (times===2 ) $(o.slides,$t).children(":eq(0)").css({position:"absolute",left:0});
						if (times===1) $(o.slides,$t).children(":eq("+ (slides-1) +")").css({position:"absolute",left:-width});
						active = false;
						});
					break;
					
					case "fade":
						times = [times]*1;
						distance = (-(times*width-width));
						current(times);
						if(o.autoHeight){autoHeight(times);}
						$(o.slides,$t).children().fadeOut(o.fadespeed, function(){
						$(o.slides,$t).css({left: distance});
						$(o.slides,$t).children(":eq("+(slides-1)+")").css({left:slides*width-width});
						$(o.slides,$t).children(":eq(0)").css({left:0});
						if(times===slides){$(o.slides,$t).children(":eq(0)").css({left:(slides*width)});}
						if(times===1){$(o.slides,$t).children(":eq("+(slides-1)+")").css({ position:"absolute",left:-width});}
						$(o.slides,$t).children().fadeIn(o.fadespeed);
						active = false;
						});
					break;
					
					default:
					break;
				}
			};
			}
			);
			}
		});
		$.fn.loopedSlider.defaults = {
		container: ".container", //Class/id of main container. You can use "#container" for an id.
		slides: ".slides", //Class/id of slide container. You can use "#slides" for an id.
		pagination: "pagination", //Class name of parent ul for numbered links. Don't add a "." here.
		containerClick: true, //Click slider to goto next slide? true/false
		autoStart: 0, //Set to positive number for true. This number will be the time between transitions.
		restart: 0, //Set to positive number for true. Sets time until autoStart is restarted.
		slidespeed: 300, //Speed of slide animation, 1000 = 1second.
		fadespeed: 200, //Speed of fade animation, 1000 = 1second.
		autoHeight: 0, //Set to positive number for true. This number will be the speed of the animation.
		addPagination: false //Add pagination links based on content? true/false
		};
	});
}