SWF Detect

gistfile1.js

javascript:(function() {
var object_tags = document.getElementsByTagName('object');
var embed_tags = document.getElementsByTagName('embed');

var filter = new RegExp('.*?((?:[a-z][a-z\\.\\d\\-]+)\\.(?:[a-z][a-z\\-]+))(?![\\w\\.])');

var pullUrls = function(elements, attr) {
    var urls = [];
    for (var i=0; i < elements.length; i++) {
        var data = elements[i].getAttribute(attr);
        data = data ? data.toLowerCase() : data;
        if (data && data.substr(-4) === '.swf') {
            var match = filter.exec(data);
            if (match != null) urls.push(match[1]);
        }
    }
    return urls;
};

var urls = pullUrls(object_tags, 'data').concat(pullUrls(embed_tags, 'href'));
if (urls.length > 0) {
    alert("Flash content on this page is hosted at the following URLs:\n" + urls.join('\n'));
} else {
    alert("No flash content was found on this page.");
}
})();