gistfile1.js

if (typeof jQuery == 'undefined') {
    var jQ = document.createElement('script');
    jQ.type = 'text/javascript';
    jQ.onload=loadDeps;
    jQ.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js';
    document.body.appendChild(jQ);
} else {
    loadDeps();
}
function loadDeps() {
    jQuery.getScript('https://github.com/bergie/VIE/raw/master/underscore-min.js', function() { 
        jQuery.getScript('https://github.com/bergie/VIE/raw/master/backbone-min.js', function() { 
            jQuery.getScript('https://github.com/bergie/VIE/raw/master/vie.js', function() {
                console.log("All set");
                findRDFa();
            });
        });
    });
};

function findRDFa() {
    var entities = VIE.RDFa.readEntities();
    console.log(entities);
    var vieElement = jQuery('<div id="vie-introspection" style="z-index:9999;position:absolute;top:0px;height:300px;width:200px;overflow:auto;"><h2>Elements we found from this page:</h2></div>');
    jQuery('body').append(vieElement);
}