Tampermonkey script for auto captcha filling in NEPSE TMS

gistfile1.txt

// ==UserScript==
// @name         TMS captcah autofill
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       chaosifier
// @match        https://*.nepsetms.com.np/login
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    function triggerKeyboardEvent(el, keyCode, type) {
        var eventObj = document.createEventObject ? document.createEventObject() : document.createEvent("Events");
        if (eventObj.initEvent) {
            eventObj.initEvent(type, true, true);
        }
        eventObj.keyCode = keyCode;
        eventObj.which = keyCode;
        el.dispatchEvent ? el.dispatchEvent(eventObj) : el.fireEvent("onkeydown", eventObj);
    }
    //auto fill the captcha on page load
    function captchaAutoFill() {
        captchaEnter.focus();
        $("#captchaEnter").val($("#randomfield").val());
        triggerKeyboardEvent(captchaEnter, captchaEnter.value.charCodeAt(0), "input")
    }
    captchaAutoFill();
})();