Cleverflow by Thenn42 (Tweaked by Psycoder)

// ==UserScript==
// @name       WaniKani Flash Forward
// @namespace thenn42.eu/userscripts
// @description Automatically moves to the next item, and replaces the kana chart button with previous item's info page link.  Optionally will play audio (when available) before advancing.
// @include    http://www.wanikani.com/review/*
// @version    0.3
// @run-at document-end
// @require http://code.jquery.com/jquery-1.9.1.min.js
// @grant GM_log
// ==/UserScript==
var playAudio = 0;
var timer = 500;
var lastItem = "";
var currentItem = "";
var lastType = "";
var currentType = "";
var url = "";
var isAudioPlaying = 0;
WhenNewQuestion();
setTimeout(WaitForCorrectAnswer, timer);

function MoveToNextQuestion() {
    $('#option-submit').click();
    isAudioPlaying = 0;
    setTimeout(WaitForCorrectAnswer, timer);
}

function PlayAudioClipThenMove() {
    if ($(".play")[0] != undefined) {
        $(".play")[0].click();
        setTimeout(MoveToNextQuestion, 2000);
    } else {
        MoveToNextQuestion();
    }
}

function WaitForCorrectAnswer() {
    if (($('fieldset').attr("class") == "correct") && (isAudioPlaying == 0)) {
        if ((playAudio == 1) && ($("#option-audio").attr("class") != "inactive")) {
            isAudioPlaying = 1;
            setTimeout(PlayAudioClipThenMove, timer);
        } else {
            MoveToNextQuestion();
        }
    } else {
        setTimeout(WaitForCorrectAnswer, timer);
    }
}

function WhenNewQuestion() {
    currentType = $("#item-box").find("h1").attr("class");
    if (currentType == "vocabulary") {
        currentItem = $("#item-box").find("h1 small").text();
    } else if (currentType == "kanji") {
        currentItem = $("#item-box").find("h1").text();
    } else {
        currentItem = $("#meanings p").text().toLowerCase();
        currentItem = currentItem.replace(" ","-");
    }
    if (currentItem != lastItem) {
        url = "http://www.wanikani.com/quickview/";
        if (lastType == "kanji") {
            url += "kanji\/"+lastItem;
        } else if (lastType=="vocabulary") {
            url += "vocabulary\/" + lastItem;
        } else {
            url += "radicals\/" + lastItem;
        }
        $("#option-kana-chart").replaceWith("<li id=\"option-kana-chart\"><a target=\"_blank\" href=\""+url+"\"><i class=\"icon-question-sign\"></i></a></li>");
    }
    lastType = currentType;
    lastItem = currentItem;
}

$('#item-info-sub').bind('DOMNodeInserted', WhenNewQuestion);