Adding SOPA blackout to a Drupal Gardens - Javascript + Iframe - by Jacob Singh.name, Zachstronaut.

iframe-blackout.drupal-block.html

<script>
/*!
* Javascript-iframe (Drupal) SOPA-blackout solution.
*
* authors: Jacob Singh, Zachstronaut, Nick Freear, 2012-01-17.
* help: http://jacobsingh.name/content/adding-sopa-blackout-drupal-gardens
* via:  http://drupal.org/planet
*/
(function blackout(){
    var a = new Date,
        da = 19, //18,
        hpx = 600, //window.innerHeight,
        url = 'http://www.zachstronaut.com/lab/text-shadow-box/stop-sopa.html',
        //url = 'http://wikimediafoundation.org/wiki/SOPA/Blackoutpage',
        utm = false;
    if (da == a.getDate() && 0 == a.getMonth() && 2012 == a.getFullYear()) {
        window.onload = function () {
            var cover = document.createElement('div');
            cover.id = 'blackout';
            cover.style.position = 'absolute'; //MSIE 8 fix. Not 'fixed';
            cover.style.zIndex = 9999999;
            cover.style.width = '100%'; //MSIE 8 fix. Not window.innerWidth + 'px';
            cover.style.height = hpx + 'px';
            cover.style.top = 0;
            cover.style.left = 0;
            cover.style.backgroundColor = '#000';
            cover.innerHTML = '<iframe src="'+ url
              +(utm ? '?utm_source='+ encodeURIComponent(document.location) +'&amp;utm_campaign=SOPA&amp;utm_medium=banner' : '')
              +'" width="100%" height="100%" frameborder="0"></iframe>';
            document.body.appendChild(cover);
            /*window.onresize = function () {
                cover.style.width = '100%';
                cover.style.height = hpx + 'px';
            }*/
            document.body.className +=' js-blackout';
            document.body.style.marginTop = (hpx + 10) + 'px';
            document.body.style.backgroundColor = '#eee';
        }
    }
})();
</script>