// JavaScript Document

$.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').width(9999),
            $items 		= $slider.find('> li'),
            $single 	= $items.first(),
            singleWidth = $single.outerWidth(), 
            visible 	= Math.round($wrapper.innerWidth() / singleWidth),
            currentPage = 1,
            pages 		= Math.ceil($items.length / visible),
			magicoffset	= 8;           


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

        // 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)+magicoffset);
        
        // 4. paging function
        function gotoPage(page) {
            var dir = page < currentPage ? -1 : 1,
                n = Math.abs(currentPage - page),
                left = singleWidth * dir * visible * n;
            
            $wrapper.filter(':not(:animated)').animate({
                scrollLeft : '+=' + left
            }, 800, function () {
                if (page == 0) {
					$wrapper.scrollLeft(singleWidth * visible * pages);
                    page = pages;
                } else if (page > pages) {
                    $wrapper.scrollLeft((singleWidth * visible)+magicoffset);
                    // reset back to start position
                    page = 1;
                } 

                currentPage = page;
            });                
            
            return false;
        }
        
        $wrapper.after('<a class="arrow back">&lt;</a><a class="arrow forward">&gt;</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);
        });
        
    });  
};

$(document).ready(function () {
  $('.infiniteCarousel').infiniteCarousel();

	/* BILDER */
	// Der Link muss im HTML die id "fullcover" haben
	$("a.#fullcover").fancybox({
		'titlePosition'	: 'inside',
		'overlayShow'	:	false,
		'transitionIn'	:	'elastic',
		'transitionOut'	:	'elastic',
		'easingIn'      : 	'easeOutBack',
		'easingOut'     : 	'easeInBack'
	});
});