// LIBRERIA JAVASCRIPT 
// Questa libreria utilizza script di terze parti che mantengono i loro rispettivi copyright e licenze
// Mail: roberto@valsania.com 
// WEB: www.valsania.com

$.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'),
            
            singleWidth = $single.outerWidth(), 
            visible = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 1,
            pages = Math.ceil($items.length / visible);            


        // 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');
        }

        // 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) {
            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;
            });                
            
            return false;
        }
        
        //$wrapper.after('<a class="arrow back">&lt;</a><a class="arrow forward">&gt;</a>');
        
		var auto_scroll_active = 1;
		
        // 5. Bind to the forward and back buttons
        $('a.back', this).click(function () {
			auto_scroll_active=0;
            return gotoPage(currentPage - 1);                
        });
        
        $('a.forward', this).click(function () {
			auto_scroll_active=0;
            return gotoPage(currentPage + 1);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
		
		function carousel_slideshow() {
			if(auto_scroll_active == 1)
			{
			if(pages>1)
				{
				gotoPage(currentPage + 1);
				}
			}
			
		}
		
		setInterval(carousel_slideshow,5000);
		
$("div.infiniteCarousel").mouseover(function(){
	auto_scroll_active=0;
	}).mouseout(function(){
	auto_scroll_active=1;
});


    });  
};

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

// Just for fun... (example found in custom.js, jquery.com)
if ( window.addEventListener ) {
        var kkeys = [], konami = "86,65,76,83,65,78,73,65";
        window.addEventListener("keydown", function(e){
                kkeys.push( e.keyCode );
                if ( kkeys.toString().indexOf( konami ) >= 0 )
                        window.location = "http://www.valsania.com";
        }, true);
}