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哔哩哔哩(bilibili.com)跳过片头2

片头开始播放时，按 J 键跳过片头，键码74

// ==UserScript==
// @name         哔哩哔哩(bilibili.com)跳过片头2
// @namespace    http://tampermonkey.net/
// @version      2.0
// @description  片头开始播放时，按 J 键跳过片头，键码74
// @author       原作者：zhpjy，已被修改过
// @modified     flaribbit
// @match        *://www.bilibili.com/*
// @icon         https://www.bilibili.com/favicon.ico
// @grant        none
// @license     WTFPL
// ==/UserScript==

var keyCode = 74; // J 键的键码
var JumpTime = 85; //跳跃长度（秒）

var allowed = true;
document.onkeydown=function(event) {
    if (event.repeat != undefined) {
        allowed = !event.repeat;
    }
    if(!allowed)return;
    allowed=false;
    if(event.keyCode == keyCode) {
        player.seek(player.getCurrentTime()+JumpTime);
    }
};

document.onkeyup(function(e) { allowed = true; });
document.onfocus(function(e) { allowed = true; });