(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');
        base.singleWidth = base.$single.outerWidth();
        base.pages = base.$items.length;
        if (base.pages === 1) {
              base.options.autoPlay = false;
        }
        base.buildNavigation();
			  var $itemClone = base.$items.filter(':last').clone().addClass('cloned');
			  if ($itemClone.attr("id") != "") {
          base.$items.filter(':first').before($itemClone.attr('id', ($itemClone.attr('id') + "-cloned")));
        } else {
          base.$items.filter(':first').before($itemClone);
        }
        $itemClone = base.$items.filter(':first').clone().addClass('cloned');
        if ($itemClone.attr("id") != '') {
          base.$items.filter(':last' ).after($itemClone.attr('id', ($itemClone.attr('id') + "-cloned")));
        } else {
          base.$items.filter(':last' ).after($itemClone);
        }
        base.$items = base.$slider.find('> li');
			if (base.pages > 1) {
			  base.buildNextBackButtons();
			}
			if (base.options.autoPlay) {
				base.playing = !base.options.startStopped; 
				base.buildAutoPlay();
			};
			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('.cur').removeClass('cur');
				$(base.$navLinks[page - 1]).addClass('cur');
			};
			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 = $("<div class='thumbNav'><ul/></div>").prependTo(base.$el);
			
			if (base.options.buildNavigation && (base.pages > 1)) {
  			base.$items.each(function(i,el) {
  				var index = i + 1;
  				var $a = $("<a href='#'></a>");
  				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();
  				});
  				$("ul", base.$nav).append($a);
          $a.wrap("<li />");
  			});
  			base.$navLinks = base.$nav.find('li > a');
  		}
		};
		base.buildNextBackButtons = function() {
			var $forward = $('<li class="arrow forward"><a href="#">' + base.options.forwardText + '</a></li>'),
			  	$back    = $('<li class="arrow back"><a href="#">' + base.options.backText + '</a></li>');
      $back.click(function(e) {
          base.goBack();
				  e.preventDefault();
      });
      $forward.click(function(e) {
          base.goForward();
				  e.preventDefault();
      });
			$("ul", base.$nav).prepend($back).append($forward);
		};
		base.buildAutoPlay = function(){

			base.$startStop = $("<a href='#' class='start-stop'></a>").html(base.playing ? base.options.stopText :  base.options.startText);
			base.$el.prepend(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: 3000,             
      hashTags: true,                 
      buildNavigation: true,          
      pauseOnHover: true,             
  		startText: "Start",            
  		stopText: "Stop",               
  		navigationFormatter: null,      
  		forwardText: "",            
  		backText: ""                
    };
    $.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);