Massive Reset for Lon-Capa

One click button to reset whole section

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Massive Reset for Lon-Capa
// @description One click button to reset whole section
// @namespace   https://peijunz.github.io
// @author      Peijun Zhu
// @include     http://nplq1.phyast.pitt.edu/adm/grades
// @include     http://homework.phyast.pitt.edu/adm/grades
// @version     2017.09.07.2
// @grant       none
// @icon        http://www.courseweaver.com/images/lc_logo.png
// ==/UserScript==
function resetAll() {
    l = document.getElementsByTagName('select');
    for (index = 0; index < l.length; ++index) {
        if (!l[index].value) {
            l[index].value = 'reset status';
        }
    }
}
id = "resetall_button";
t = document.getElementById(id);
if(t === null){
    var resetButton = document.createElement("input");
    resetButton.setAttribute("id", id);
    resetButton.type = "button";
    resetButton.value = "Reset Current Section";
    resetButton.onclick = resetAll;
    document.body.appendChild(resetButton);
}