cal.user.js

// ==UserScript==
// @name     cal_anchors
// @version  1
// @grant    none
// @include http://cal.huc.edu/*
// ==/UserScript==



const queryString = window.location.search;
const urlParams = new URLSearchParams(queryString);

url = window.location.href;
prefix = url.match(/file=(\d+)/)[1];
table = document.getElementsByTagName('table')[1];
trs = table.children[0].children;
for (let r of trs) {
  bdo = r.getElementsByTagName('bdo')[0];
  naiveReverse = function(string) {
    return string.split('').reverse().join('');
  };
  suffix = naiveReverse(bdo.innerText).replace(/[\s.:\(\)]/g, '');
  r.id = prefix + suffix;
}
row = urlParams.get('row');
console.log(row);
document.getElementById(row).scrollIntoView();