Bookmarklet to toggleRTL (also adds rtl class to body)

toggleRTL.js

(function() {
    var body = $("body");
    var dir = body.css("direction");
    if (dir === "") {
        body.css("direction", "rtl");
        body.toggleClass('rtl');
    } else if (dir === "ltr") {
        body.css("direction", "rtl");
    } else {
        body.css("direction", "ltr");
    }
    body.toggleClass('rtl');
})();

toggleRTLmin.js

javascript:!function(){var t=$("body"),s=t.css("direction");""===s?(t.css("direction","rtl"),t.toggleClass("rtl")):"ltr"===s?t.css("direction","rtl"):t.css("direction","ltr"),t.toggleClass("rtl")}();