$(document).ready(function() {

        //move he last list item before the first item. The purpose of this is if the user clicks to slide left he will be able to see the last item.

        $('#carousel_ul li:first').before($('#carousel_ul li:last')); 

        

        

        //when user clicks the image for sliding right        

        $('#right_scroll img').click(function(){

        

            //get the width of the items ( i like making the jquery part dynamic, so if you change the width in the css you won't have o change it here too ) '

            var item_width = $('#carousel_ul li').outerWidth() + 52;

            

            //calculae the new left indent of the unordered list

            var left_indent = parseInt($('#carousel_ul').css('left')) - item_width;

            

            //make the sliding effect using jquery's anumate function '

            $('#carousel_ul:not(:animated)').animate({'left' : left_indent},500,function(){    

                

                //get the first list item and put it after the last list item (that's how the infinite effects is made) '

                $('#carousel_ul li:last').after($('#carousel_ul li:first')); 

                

                //and get the left indent to the default -210px

                $('#carousel_ul').css({'left' : '-366px'});

            }); 

        });

        

        //when user clicks the image for sliding left

        $('#left_scroll img').click(function(){

            

            var item_width = $('#carousel_ul li').outerWidth() + 52;

            

            /* same as for sliding right except that it's current left indent + the item width (for the sliding right it's - item_width) */

            var left_indent = parseInt($('#carousel_ul').css('left')) + item_width;

            

            $('#carousel_ul:not(:animated)').animate({'left' : left_indent},500,function(){    

            

            /* when sliding to left we are moving the last item before the first list item */            

            $('#carousel_ul li:first').before($('#carousel_ul li:last')); 

            

            /* and again, when we make that change we are setting the left indent of our unordered list to the default -210px */

            $('#carousel_ul').css({'left' : '-366px'});

            });

            

            

        });

  });