Reddit awards mouseover

// ==UserScript==
// @name         Explain Awards
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://old.reddit.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    setTimeout(function() {
        $(".awarding-icon").each(function (i) {
            var img = $(this).prop("src");
            if (img.includes("award_images")) {
                img = img.substr(img.indexOf("award_images") + 12, img.length - img.indexOf("award_images"));
                img = img.substr(0, img.indexOf("."));
                img = img.split("").reverse().join("");
                img = img.substr(0, img.indexOf("_"));
                img = img.split("").reverse().join("");
                $(this).attr("title",img);
            } else if (img.includes("redditstatic")) {
             //https://www.redditstatic.com/gold/awards/icon/Train/Train_silver_48.png
                img = img.split("").reverse().join("");
                img = img.substr(0, img.indexOf("/"));
                img = img.split("").reverse().join("");
                img = img.substr(0, img.indexOf("."));
                img = img.replace(/_/g," ");
                $(this).attr("title",img);
            }
        });
    }, 2000);
})();