tumblr gist embedder

tumblr-gist.js

var real_docwrite = document.write,
    body = $('body');

(function insertGists(tags) {
    var $tag;
    if (tags.length > 0) {
        tag = tags.shift();
        $tag = $(tag);
        document.write = function(stylesheet) {
            $('head').append(stylesheet);
            document.write = function(gist) {
                $tag.replaceWith(gist)
                insertGists(tags);
            }
        }
        body.append('<scr' + 'ipt src="' + $tag.data('gist') + '"></scr' + 'ipt>');
    } else {
        document.write = real_docwrite;
    }
})($('[data-gist]').get());