$(document).ready(function() {
	// wywalanie funkcji
	
	$('.infiniteCarousel').infiniteCarousel();
				
	$('#kategorie li:first').addClass('first');
	$('#kategorie li:last').addClass('last');
	
	$('#cecha').change(function() {
		//var wartosc = $(this).val();
		if($('#cecha :selected').attr("rel"))
		{
			var cena_przed  = $('#cecha :selected').attr("rel");
			var cena_po = $('#cecha :selected').attr("rev");
			if(cena_po)
			{
				$("#price-box-cena-netto").replaceWith('<span id="price-box-cena-netto"><del><span id="js-cena-przed">'+cena_przed+' &euro;</span></del> <em><span id="js-cena-po">'+cena_po+' &euro;</span></em></span>');
			}
			else
			{
				$("#price-box-cena-netto").replaceWith('<span id="price-box-cena-netto">'+cena_przed + ' &euro;</span>');
			}
		}
	});
	
	//$('#dostawa').attr('checked', false);
	if ( $('#dostawa').attr("checked") )
	{
		$('#podaj-adres-dostawy').show();
	}
	
	$('#dostawa').click(function() {
		if ( $('#dostawa').attr("checked") )
		{
			$('#podaj-adres-dostawy').fadeIn();
		}
		else
		{
			$('#podaj-adres-dostawy').fadeOut();
		}
	});
	
	// anmerkungen
	if ( $('#anmerkungen').attr("checked") )
	{
		$('#podaj-anmerkungen').show();
	}
	
	$('#anmerkungen').click(function() {
		if ( $('#anmerkungen').attr("checked") )
		{
			$('#podaj-anmerkungen').fadeIn();
		}
		else
		{
			$('#podaj-anmerkungen').fadeOut();
		}
	});
	
	// bankeinzug
	if ( $('#p_d_7').attr("checked") )
	{
		$('#bankeinzug-wrapper').show();
	}
	
	$('p.radio input').click(function() {
		if ( $('#p_d_7').attr("checked") )
		{
			$('#bankeinzug-wrapper').fadeIn();
		}
		else
		{
			$('#bankeinzug-wrapper').fadeOut();
		}
	});
	
// eof: document.ready	
});

// funkcje

$.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">&lsaquo;</a><a class="arrow forward">&rsaquo;</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);
        });
        
        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });

		// setInterval(function (){
		// 			//$("a.forwad").trigger('click');
		// 			gotoPage(currentPage + 1);
		// 		}, 4000);
			
    });
};