Function I run when Express starts up

preloadFlot.js

function preloadFlot()
{
    var jsdom = require("jsdom"),
        document = jsdom.jsdom(),
        window = document.createWindow(),
        flot_location = 'http://jsno.de/javascripts/jquery.flot.svn.js',
        text_location = 'http://jsno.de/javascripts/jquery.flot.text.js',
        jquery_location = 'http://code.jquery.com/jquery-1.5.min.js',
        loadScript = function ( location, callback )
        {
            var script = document.createElement("script");

            script.src = location;
            if (callback) script.onload = callback;
            document.head.appendChild(script);

            return script;
        };

    window.Canvas = require('canvas');
    loadScript(jquery_location, function (){
        global.jQuery = window.$;
        loadScript(flot_location, function () { loadScript(text_location); });
    });
}