jQuery(function(){
  //move the last list item before the first item. The purpose of this is if the user clicks previous he will be able to see the last item.
  jQuery('#carousel_ul li:first').before(jQuery('#carousel_ul li:last'));

  //when user clicks the image for sliding right
  jQuery('#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 = jQuery('#carousel_ul li').outerWidth();

    //alert(item_width);

    //calculate the new left indent of the unordered list
    var left_indent = parseInt(jQuery('#carousel_ul').css('left')) - item_width;

    //make the sliding effect using jquery's anumate function '
    /*$('#carousel_ul').animate({'left' : left_indent},{queue:false, duration:500},function(){


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

    //and get the left indent to the default -210px
    $('#carousel_ul').css({'left' : '-285px'});
    });*/

    jQuery('#carousel_ul').animate({
      left: left_indent
      }, 500, function() {
      jQuery('#carousel_ul li:last').after(jQuery('#carousel_ul li:first'));
      
      jQuery('#carousel_ul').css({'left' : '-285px'});
    });
  });

  //when user clicks the image for sliding left
  jQuery('#left_scroll img').click(function(){

    var item_width = jQuery('#carousel_ul li').outerWidth();

    /* 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(jQuery('#carousel_ul').css('left')) + item_width;

    /*$('#carousel_ul').animate({'left' : left_indent},{queue:false, duration:500},function(){

    /* when sliding to left we are moving the last item before the first 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' : '-285px'});
    });*/

    jQuery('#carousel_ul').animate({
    left: left_indent
    }, 500, function() {
    jQuery('#carousel_ul li:first').before(jQuery('#carousel_ul li:last'));

    jQuery('#carousel_ul').css({'left' : '-285px'});
    });

  });
});