EasyUI分页索引不能输入非数字

//分页索引不能输入非数字

        function PagerCheck() {

            $(".pagination-num").keydown(function (event) {

                event = event || window.event;

                if (event.keyCode == 13)

                    event.keyCode = 9;

                if ((event.keyCode < 48 || event.keyCode > 57) && event.keyCode != 8 && event.keyCode != 46 && (event.keyCode < 96 || event.keyCode > 105)) {

                    event.preventDefault();

                    event.returnValue = false;

                }

            });



        }