inputNumbers.js

inputNumbers.js

(function ($) {

    $.fn.onlyNumbers = function () {

        return this.each(function () {

            $(this).keydown(function (e) {
                // backspace, delete, tab, escape, enter and .
                if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
                // Ctrl+A, Command+A
                (e.keyCode == 65 && (e.ctrlKey === true || e.metaKey === true)) ||
                // home, end, left, right, down, up
                (e.keyCode >= 35 && e.keyCode <= 40)) {
                    // let it happen, don't do anything
                    return;
                }
                // Ensure that it is a number and stop the keypress
                if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
                    e.preventDefault();
                }
            });
        });

    };

}(jQuery));