(function (a) { a.fn.validCampo = function (b) { a(this).on({ keypress: function (a) { var c = a.which, d = a.keyCode, e = String.fromCharCode(c).toLowerCase(), f = b; (-1 != f.indexOf(e) || 9 == d || 37 != c && 37 == d || 39 == d && 39 != c || 8 == d || 46 == d && 46 != c) && 161 != c || a.preventDefault() } }) } })(jQuery);