twitter_carp.user.js

// ==UserScript==
// @name           Twitter Carp
// @namespace      http://userscripts.org/users/40991
// @include        http://twitter.com/home
// ==/UserScript==
// Stolen from http://userscripts.org/scripts/show/22404

(function() {
    var replacements = ['鮎', '鯵', '鮎', '鮑', '鰒', '鰯', '鰻', '鰓', '鰍', '鰹', 
                        '鰈', '鱚', '鯨', '鯉', '鯒', '鮗', '鮭', '鯖', '鮫', '鰆', 
                        '鯱', '鱸', '鯛', '鱈', '鰌', '鯰', '鯡', '鰊', '鯊', '鰰', 
                        '鱧', '鮠', '鰡', '鮃', '鮒', '鰤'];
    var w = (typeof unsafeWindow == 'undefined') ? window : unsafeWindow;
    var form = document.getElementById('doingForm');
    var submit = w.document.getElementById('update-submit');
    var status = document.getElementById('status');

    var convertText = function(callback) { 
        var replacement = replacements[Math.floor(Math.random() * replacements.length)];
        var url = 'http://areare.appjet.net/convert?&q={str}&replacement=' + encodeURIComponent(replacement);
        GM_xmlhttpRequest({
            method : "GET",
            url : url.replace(/{str}/, status.value),
            overrideMimeType: "text/html; charset=utf8",
            onload : function(response) {
                var result = response.responseText;
                status.value = result;
                callback();
            }
        });
    };

    submit.addEventListener('click', function(e) {
        convertText(function() {
            var evt = document.createEvent('HTMLEvents');
            evt.initEvent('submit', true, true);
            evt.element = function (){ return evt.target; };
            form.dispatchEvent(evt);
        });
        e.preventDefault();
    }, false);


})();