[求助] 帮忙看下!

[求助] 帮忙看下!
以下脚本是最大最小关闭按纽在标签栏显示的,想把他改成在标题栏显示用以替换系统的,哪位帮忙改下?

(function() {    var titleButtons = document.getElementById("window-controls");    var tabsBar = document.getElementById("TabsToolbar")    tabsBar.appendChild(titleButtons);    titleButtons.hidden = false;    var maxButton = document.getElementById("restore-button");    maxButton.removeAttribute("oncommand");    maxButton.removeAttribute("fullscreencontrol");    maxButton.setAttribute("oncommand", "onTitlebarMaxClick();");})();