Phone mask for phone field, taken off for mobile devices

shane.js

jQuery(function ($e) {
    "use strict";
    var isMobile = navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry)/);
    if (!(isMobile)) {
        $e('#refer').val(window.location.href);
        $e.mask.definitions['~'] = '[+-]';
        $e('#phone').mask('(999)999-9999');
        $e('#field_phone_number').mask('999-999-9999');
    }
});

Must use jQuery maskedinput-1.3.js and jQuery. Would be nice to build something for mobile

*to uppercase in css for name
.rsform-input-box {text-transform: uppercase;}