Play Random Song on Grooveshark

gistfile1.js

/*
	Add a random song to your Grooveshark playlist
	
	Clears queue (not very fast) then adds the first song using a random songID that is valid
*/
(function() {
    //clear current queue
    function removeSong(cb) {
        w = window.Grooveshark.setSongStatusCallback();
        if (w && w.status != "none") {
            window.Grooveshark.removeCurrentSongFromQueue()
            setTimeout(function() {
            	removeSong(cb);
            }, 125);
        } else {
       		cb();
    	}
    }
    removeSong(function() {
        function next() { //try to load a new songID
            var songID = Math.floor(Math.random() * 30000000); //generate a new songID
            var o = [songID]; //create array of one songID
            window.Grooveshark.addSongsByID(o, null); //add song
            var c = 0, //retry count
                l = 8, //retry limit
                t = 250; //retry timeout
            function wait() { //wait for song to have loaded
                c++; //increment retry count
                if (c < l) { //if not over retry limit
                    var w = window.Grooveshark.setSongStatusCallback(); //get callback for song status
                    if (w && w.song !== null && w.song.songID) { //if callback valid and songID matches
                        console.log(w.song.songID, '==', songID, (w.song.songID == songID));
                        if (w.song.songID == songID) {
                            console.log('songID good');
                            window.Grooveshark.play();
                            return;
                        } else {
                            setTimeout(function() {
                                console.log('wait');
                                wait(); //check again
                            }, t);
                        }
                    } else {
                        setTimeout(function() {
                            console.log('wait');
                            wait(); //check again
                        }, t);
                    }
                } else {
                    console.log('songID bad');
                    next(); //too many fails, try new songID
                }
            }
            wait(); //check if song loaded (first time calling wait())
        }
        next(); //add song (first time calling next())
    });
})();