// ==UserScript==
// @name          Steam Check System Requirements Button
// @namespace     DoomTay
// @description   Adds a "check system requirements" button to the store page of a Steam app, which will see if a computer meets an app's system requirements
// @version       1.0.0
// @include       http://store.steampowered.com/app/*
// @include       https://store.steampowered.com/app/*
// @grant         none

// @downloadURL none
// ==/UserScript==

var appID = window.location.href.match(/store.steampowered.com\/app\/(\d+)/)[1];

var sysReqButton = document.createElement("a");
sysReqButton.className = "linkbar";
sysReqButton.innerHTML = "Check system requirements";
sysReqButton.href = "steam://checksysreqs/" + appID;

document.getElementsByClassName("details_block")[1].insertBefore(sysReqButton, document.getElementsByClassName("details_block")[1].childNodes[10]);
//document.getElementsByClassName("details_block")[1].appendChild(sysReqButton);