Apaxy/apaxy/theme/apaxy.js

// fix links when not adding a / at the end of the URI
var uri = window.location.pathname.substr(1);
if (uri.substring(uri.length - 1) !== '/') {
  var indexes = document.getElementsByClassName('indexcolname');
  for (let i of indexes) {
    var a = i.getElementsByTagName('a')[0];
    a.href = '/' + a.getAttribute('href', 2);
  }
}

// content filtering, based on "light javascript table filter" by Chris Coyier
// https://codepen.io/chriscoyier/pen/tIuBL - MIT License
(function(document) {
	'use strict';

	var TableFilter = (function(Arr) {

		// the search bar element
		var _input;

		// find all rows of all tables and call _filter on them
		function _onInputEvent(e) {
			_input = e.target;
			var tables = document.getElementsByTagName('table');
			Arr.forEach.call(tables, function(table) {
				Arr.forEach.call(table.tBodies, function(tbody) {
					Arr.forEach.call(tbody.rows, _filter);
				});
			});
		}

		// show or hide a row based on the value of _input
		function _filter(row) {
			// skip "special" rows
			if (row.className.indexOf('indexhead') != -1 || row.className.indexOf('parent') != -1) {
				return;
			}

			// only check the 'name' field
			var text = row.getElementsByTagName('td')[1].textContent.toLowerCase();
			var val = _input.value.toLowerCase();

			// change display type to show / hide this row
			row.style.display = text.indexOf(val) === -1 ? 'none' : 'table-row';
		}

		return {
			init: function() {
				// grab the 1st child and add the indexhead class. tr:nth-child(1)
				var row = document.getElementsByTagName('tr')[0];
				// some versions of apache already add this class
				if (row !== null && row.className.indexOf('indexhead') == -1) {
					row.className += ' indexhead';
				}

				// grab the 2nd child and add the parent class. tr:nth-child(2)
				row = document.getElementsByTagName('tr')[1];
				// when apaxy is installed at doc root, there is no "parent directory" row
				if (row !== null && row.getElementsByTagName('td')[1].textContent === 'Parent Directory') {
					row.className += ' parent';
				}

				// find the search box and bind the input event
				document.getElementById('filter').oninput = _onInputEvent;
			}
		};

	})(Array.prototype);

	document.addEventListener('readystatechange', function() {
		if (document.readyState === 'complete') {
			TableFilter.init();
		}
	});

})(document);