jQuery as a custom YUI module

jQuery-YUI.js

// version with iframe
YUI.add('dlp-jquery', function(Y) {

    // create iframe dynamically to create a sandbox for our script
    var myIframe = document.createElement('iframe');
    myIframe.id  = 'jQueryIframe';

    // callback run when the iframe is loaded
    myIframe.onload = function() {
        console.log('my iframe loaded');

        var jqscript    = myIframe.contentDocument.createElement('script');
        jqscript.src    = 'http://code.jquery.com/jquery-1.10.1.min.js';

        // callback run when the script is loaded
        function onLoadCb() {
            console.log('script loaded');

            // add jQuery to dlp namespace
            Y.namespace('dlp')
                .jQuery = myIframe.contentWindow.jQuery;

            // cleanup
            myIframe.parentNode.removeChild(myIframe);                    
        }

        // feature detection
        if (jqscript.onload === null) {
            jqscript.onload = onLoadCb;
        }
        else {
            jqscript.onreadystatechange = onLoadCb;   
        }
            
        // append script, it will trigger onload/onreadystatechange when successful
        myIframe.contentDocument.body.appendChild(jqscript);
    }

    // append iframe, it will trigger onload when successful
    document.body.appendChild(myIframe);
}, '1.10.1');