Videodropper bookmarklet- under progress

bookmarklet.js

if (!($ = window.jQuery)) { // typeof jQuery=='undefined' works too
    script = document.createElement('script');
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js';
    script.onload = videodropper_bookmarklet; 
    document.body.appendChild(script);
}
else {
    videodropper_bookmarklet();
}
d = document; b = d.body;
origTitle = d.title;

func = function(data) { alert(data.message); d.title = origTitle; 
                      }; 
var page_url = document.location.href;

function videodropper_bookmarklet() {
    d.title = "(Videodropping..)" + d.title;
    //z = d.createElement('div')
    //z.setAttribute('style', '')
    function gup(name) {
        name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
        var regexS = "[\\?&]" + name + "=([^&#]*)";
        var regex = new RegExp(regexS);
        var results = regex.exec(page_url);
        if (results === null) {
            return "";
        }
        else {
            return results[1];
        }
    }
    videoid = gup('v');
    url = "http://gdata.youtube.com/feeds/api/videos/" + videoid + "?v=2&alt=json-in-script&callback=?";

    $.getJSON(url, function(json) {
        send_url = "http://videodropper.ep.io/bookmarklet?video_url=" + encodeURIComponent(json.entry["media$group"]["media$player"].url);
        var request = $.ajax({
            url: send_url,
            type: 'GET',
            dataType: 'jsonp',
            //success: function func(data) {
              //  alert(data.message);
            //}
        });

    });

}