商品详细页js

        $('#add_cart').click(function () {
            var gid=$('#gid').val();
            var count=$('.num_show').val();

            $.get('/user/islogin/',function (data) {
                if(data.islogin==1){
                    $.get('/cart/add/',{'gid':gid,'count':count},function (data) {
                if(data.isok==1){
                    var $add_x = $('#add_cart').offset().top;
                    var $add_y = $('#add_cart').offset().left;

                    var $to_x = $('#show_count').offset().top;
                    var $to_y = $('#show_count').offset().left;

                    $(".add_jump").css({'left':$add_y+80,'top':$add_x+10,'display':'block'})

                    $(".add_jump").stop().animate({'left': $to_y+7, 'top': $to_x+7}, "fast", function() {
                        $(".add_jump").fadeOut('fast');
                        $('#show_count').text(data.count);
                    });

                }
            })
                }else{
                    location.href='/user/login/';
                }
            })
        });