$.fn.infiniteCarousel = function () {
    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }
  
    return this.each(function () {
        var $wrapper = $('> div', this).css('overflow', 'hidden'),
            $slider = $wrapper.find('> ul'),
            $items = $slider.find('> li'),
            $single = $items.filter(':first'),
            
            $navDotsContainer = $(this).parent().parent().parent().parent().find(".paging"),
            $previousButton = $(this).parent().parent().parent().parent().find(".carousel_button_left"),
            $nextButton = $(this).parent().parent().parent().parent().find(".carousel_button_right"),
            
            singleWidth = $single.outerWidth(), 
            visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 1,
            pages = Math.ceil($items.length / visible);            

			if (pages < 2) {
				$previousButton.hide();
				$nextButton.hide();
				$navDotsContainer.hide();
				return;
			}

//			1. Pad so that 'visible' number will always be seen, otherwise create empty items
//			if (($items.length % visible) != 0) {
//				$slider.append(repeat('<li class="empty" />', visible - ($items.length % visible)));
//				$items = $slider.find('> li');
//			}

		$navDotsContainer.find("a:first").addClass("active");

        // 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
        $items.filter(':first').before($items.slice(- visible).clone().addClass('cloned'));
        $items.filter(':last').after($items.slice(0, visible).clone().addClass('cloned'));
        $items = $slider.find('> li'); // reselect
        
        // 3. Set the left position to the first 'real' item
        $wrapper.scrollLeft(singleWidth * visible);
        
        // 4. paging function
        function gotoPage(page) {
         //  console.log("button requests page: " + page);
           
           var dir = page < currentPage ? -1 : 1,
                n = Math.abs(currentPage - page),
                left = singleWidth * dir * visible * n;
            	
            $wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, 500, function () {
                if (page == 0) {
                    $wrapper.scrollLeft(singleWidth * visible * pages);
                    page = pages;
                } else if (page > pages) {
                    $wrapper.scrollLeft(singleWidth * visible);
                    // reset back to start position
                    page = 1;
                } 
				
                currentPage = page;
               // console.log("currentpage is set to page: " + currentPage);
                $navDotsContainer.find("a").removeClass("active");
                $navDotsContainer.find("a.page_" + page).addClass("active");
                
            });                
            
            return false;
        }
        
//        $wrapper.after('<a class="arrow back"> </a><a class="arrow forward"> </a>');
        
        // 5. Bind to the forward and back buttons
/*
        $('a.back', this).click(function () {
            return gotoPage(currentPage - 1);                
        });
        
        $('a.forward', this).click(function () {
            return gotoPage(currentPage + 1);
        });
*/
        $previousButton.click(function () {
            return gotoPage(currentPage - 1);                
        });
        
        $nextButton.click(function () {
            return gotoPage(currentPage + 1);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
        
        $navDotsContainer.find("a").click(function() {
        	var which = parseInt($(this).attr('class').split('_').slice(-1)); 
        	return gotoPage(which);
        });
    });  
};

$('.infiniteCarouselsix,.infiniteCarouselfive,.infiniteCarouselfour,.infiniteCarousellogo').infiniteCarousel();
