AOE2.net REGEX Filter 0.2

// ==UserScript==
// @name         AOE2.net REGEX Search
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  replaces searchbox, parses gametype and lobby names only atm. usage: michi|cba for cba or michi. BUG: this script is bugged - if text was typed into the old searchbox in the previous session, aoe2.net will keep it in the next sessions. I tried setting the value of the old input to "" and that failed to fix it so clear it yourself before enabling this script.
// @author       xThomas
// @match        https://aoe2.net/
// @icon         https://www.google.com/s2/favicons?domain=aoe2.net
// @grant        none
// @run-at       document-end


// ==/UserScript==
(function() {
    'use strict';
    setTimeout(main_Func, 400); // Wait 400 milliseconds after page load before starting the script
})();

var searchCount = 0;
function SearchIt() {
    var TABLE = document.querySelector("table#aoe2de-lobbies-table");
    var ROWS = TABLE.rows;
    var NEWSEARCHBOX = document.getElementById("regex-search");
    // note: I should just make a new fragment and then set its display to ""
    // setting each row's display one at a time will cause lots of page reflow
    // that's what i did with my hp business outlet filter

    for (let i = ROWS.length - 1; i >= 1; i--) {
        let row = ROWS[i];
        let cell1 = row.cells[1];
        let cell3 = row.cells[3];

        let ALLCAPS1 = cell1.innerHTML.toUpperCase();
        let ALLCAPS3 = cell3.innerHTML.toUpperCase();
        let search1 = ALLCAPS1.search(NEWSEARCHBOX.value.toUpperCase());
        let search2 = ALLCAPS3.search(NEWSEARCHBOX.value.toUpperCase());

        // string.search returns -1 if it fails to find a match
        if(search1 === -1 && search2 === -1) {
            //hideRow(row);
            row.style.display = "none";
        } else {
            //showRow(row);
            row.style.display = "";
        }
    }
    console.log("SearchCount = " + (searchCount++) + "\n");
}

function main_Func(){
    // Cell 0 is ignorable
    // Cell 1 is Type (Random Map, Scenario, ..)
    // Cell 2 is ignorable
    // Cell 3 is Lobby Name
    // Cell 4 is Location (Coastal, Arabia, ..)

    // Custom Input with OR implemented...
    //document.querySelector("table#aoe2de-lobbies-table").rows[1].cells[3].innerHTML.search("CBA|Michi")
    // REGEX SEARCH


    var OLDSEARCHBOX = document.querySelector("div label input.form-control.form-control-sm");
    var SEARCHNODE = document.querySelector("div#aoe2de-lobbies-table_filter label");
    if (!OLDSEARCHBOX) {
        console.log("OLDSEARCHBOX is null, timeout for 1 second and try again");
        setTimeout(main_Func, 1000);
        return;
    } else {
        if (!SEARCHNODE) {
            console.log("OLDSEARCHBOX is not null, but SEARCHNODE is null.\ntimeout for 1 second and try again");
            setTimeout(main_Func, 1000);
            return;
        } else {
            console.log("OLDSEARCHBOX is not null and SEARCHNODE is not null.\nProceed to disable old search box and create new search box.");
            console.log("Value of OLDSEARCHBOX = " + OLDSEARCHBOX.value + "\nProceed to clear input value");
            OLDSEARCHBOX.value = "";
            console.log("Value of OLDSEARCHBOX = " + OLDSEARCHBOX.value + "");

            OLDSEARCHBOX.disabled= "true";
            SEARCHNODE.removeChild(OLDSEARCHBOX);
            var NEWSEARCHBOX = document.createElement("input");
            NEWSEARCHBOX.id = 'regex-search';
            NEWSEARCHBOX.setAttribute("type", "text");
            NEWSEARCHBOX.onkeyup = SearchIt;
            SEARCHNODE.appendChild(NEWSEARCHBOX);
            var INTERVAL_TIME = 3000;  // Set to 3 seconds
            setInterval(SearchIt, INTERVAL_TIME);

        }
    }
}