pixiebox

<a class="vimeo-lazy-link" data-height="349" data-width="620" data-video="3137949" href="http://vimeo.com/3137949"></a>

function fetchJSONFile(path, callback) {
    var httpRequest = new XMLHttpRequest();
    httpRequest.onreadystatechange = function() {
        if (httpRequest.readyState === 4) {
            if (httpRequest.status === 200) {
                var data = JSON.parse(httpRequest.responseText);
                if (callback) callback(data);
            }