Harrison no-nags

// ==UserScript==
// @name        No Nagging
// @description Disables nagging on harrison.edu
// @version     1.0
// @include     *://harrison.edu/*
// @include     *://*.harrison.edu/*
// @run-at      document-start
// ==/UserScript==

var script = document.createElement('script');
var style = document.createElement('style');

script.appendChild(document.createTextNode(
    'window.alert=function(){};' +
    'window.confirm=function(){};'
));

style.appendChild(document.createTextNode(
    '.topmenubar{display:none;}'
));

var interval = setInterval(function() {
    if (document.head) {
        document.head.appendChild(script);
        document.head.appendChild(style);
        clearInterval(interval);
    }
}, 1);