$("input[name=number]").keydown(function (e) { // Allow: backspace, delete, tab, escape, enter and . if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 || // Allow: Ctrl+A, Command+A (e.keyCode == 65 && ( e.ctrlKey === true || e.metaKey === true ) ) || // Allow: 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(); } });