(function($){
    $.anythingSlider = function(el, options){
        var base = this;
        base.$el = $(el);
        base.el = el; 
        base.currentPage = 1;
		base.timer = null;
		base.playing = false
        base.$el.data("AnythingSlider", base); 
        base.init = function(){
            base.options = $.extend({},$.anythingSlider.defaults, options);
			base.$wrapper = base.$el.find('> div').css('overflow', 'hidden');
            base.$slider  = base.$wrapper.find('> ul');
            base.$items   = base.$slider.find('> li');
            base.$single  = base.$items.filter(':first')
			if(base.options.buildNavigation) base.buildNavigation();
            base.singleWidth = base.$single.outerWidth();
            base.pages = base.$items.length;
			base.$items.filter(':first').before(base.$items.filter(':last').clone().addClass('cloned'));
            base.$items.filter(':last' ).after(base.$items.filter(':first').clone().addClass('cloned'));
            base.$items = base.$slider.find('> li');
			base.buildNextBackButtons();
			if(base.options.autoPlay) {
				base.playing = !base.options.startStopped; // Sets the playing variable to false if startStopped is true
				base.buildAutoPlay();
			};
			
			// If pauseOnHover then add hover effects
			if(base.options.pauseOnHover) {
				base.$el.hover(function(){
					base.clearTimer();
				}, function(){
					base.startStop(base.playing);
				});
			}
			if((base.options.hashTags == true && !base.gotoHash()) || base.options.hashTags == false){
				base.setCurrentPage(1);
			};
        };

		base.gotoPage = function(page, autoplay){
			if(autoplay !== true) autoplay = false;
			if(!autoplay) base.startStop(false);
			if(typeof(page) == "undefined" || page == null) {
				page = 1;
				base.setCurrentPage(1);
			};
			if(page > base.pages + 1) page = base.pages;
			if(page < 0 ) page = 1;
			var dir = page < base.currentPage ? -1 : 1,
                n = Math.abs(base.currentPage - page),
                left = base.singleWidth * dir * n;
			
			base.$wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, base.options.animationTime, base.options.easing, function () {
                if (page == 0) {
                    base.$wrapper.scrollLeft(base.singleWidth * base.pages);
					page = base.pages;
                } else if (page > base.pages) {
                    base.$wrapper.scrollLeft(base.singleWidth);
                    page = 1;
                };
				base.setCurrentPage(page);
            });
		};
		
		base.setCurrentPage = function(page, move){
			if(base.options.buildNavigation){
				base.$nav.find('.on').removeClass('on');
				$(base.$navLinks[page - 1]).addClass('on');	
			};
			if(move !== false) base.$wrapper.scrollLeft(base.singleWidth * page);
			base.currentPage = page;
		};
		
		base.goForward = function(autoplay){
			if(autoplay !== true) autoplay = false;
			base.gotoPage(base.currentPage + 1, autoplay);
		};
		
		base.goBack = function(){
			base.gotoPage(base.currentPage - 1);
		};
		base.gotoHash = function(){
			if(/^#?panel-\d+$/.test(window.location.hash)){
				var index = parseInt(window.location.hash.substr(7));
				var $item = base.$items.filter(':eq(' + index + ')');
				if($item.length != 0){
					base.setCurrentPage(index);
					return true;
				};
			};
			return false;
		};
		base.buildNavigation = function(){
			base.$nav = $("<ul class='num'></ul>").appendTo(base.$el);
			base.$items.each(function(i,el){
				var index = i + 1;
				var $a = $("<li></li>");
				if( typeof(base.options.navigationFormatter) == "function"){
					$a.html(base.options.navigationFormatter(index, $(this)));
				} else {
					$a.text(index);
				}
				$a.click(function(e){
                    base.gotoPage(index);
                    
                    if (base.options.hashTags)
						base.setHash('panel-' + index);
						
                    e.preventDefault();
				});
				base.$nav.append($a);
			});
			base.$navLinks = base.$nav.find('> li');
		};
		base.buildNextBackButtons = function(){
			var $forward = $('<a class="g_btn_right"></a>'),
				$back    = $('<a class="g_btn_left"></a>');
            $back.click(function(e){
                base.goBack();
				e.preventDefault();
            });
  			 $back.mouseout(function(e){
               base.startStop(!base.playing);
				e.preventDefault();
            });
            $forward.click(function(e){
                base.goForward();
				e.preventDefault();
            });
			$forward.mouseout(function(e){			  
                base.startStop(!base.playing);
				e.preventDefault();
            });
			base.$wrapper.after($back).after($forward);
		};
		base.buildAutoPlay = function(){
			base.$startStop = $("<a href='#' id='start-stop'></a>").html(base.playing ? base.options.stopText :  base.options.startText);
			base.$el.append(base.$startStop);            
            base.$startStop.click(function(e){
				base.startStop(!base.playing);
				e.preventDefault();
            });
			base.startStop(base.playing);
		};
		base.startStop = function(playing){
			if(playing !== true) playing = false;
			base.playing = playing;
			if(base.options.autoPlay) base.$startStop.toggleClass("playing", playing).html( playing ? base.options.stopText : base.options.startText );
			if(playing){
				base.clearTimer();
				base.timer = window.setInterval(function(){
					base.goForward(true);
				}, base.options.delay);
			} else {
				base.clearTimer();
			};
		};
		base.clearTimer = function(){
			if(base.timer) window.clearInterval(base.timer);
		};
		base.setHash = function ( hash ) {
			if ( typeof window.location.hash !== 'undefined' ) {
				if ( window.location.hash !== hash ) {
					window.location.hash = hash;
				};
			} else if ( location.hash !== hash ) {
				location.hash = hash;
			};
			return hash;
		};
        base.init();
    };
    $.anythingSlider.defaults = {
        easing: "swing",               
        autoPlay: true,                
        startStopped: false,            
        delay: 3000,                    
        animationTime: 600,
        hashTags: true,                
        buildNavigation: true,          
        pauseOnHover: true,
		startText: "Start",
		stopText: "Stop",
		navigationFormatter: null
    };
    $.fn.anythingSlider = function(options){
		if(typeof(options) == "object"){
		    return this.each(function(i){			
				(new $.anythingSlider(this, options));
				options.hashTags = false;
	        });	
		} else if (typeof(options) == "number") {

			return this.each(function(i){
				var anySlide = $(this).data('AnythingSlider');
				if(anySlide){
					anySlide.gotoPage(options);
				}
			});
		}
    };
})(jQuery);