URL();
            }
        );

        $("#popular-list").click(listPopularTracks);

        jukeboxData.minRandomBranchChance = defaultMinRandomBranchChance;
        jukeboxData.maxRandomBranchChance = defaultMaxRandomBranchChance;
        jukeboxData.randomBranchChanceDelta = defaultRandomBranchChanceDelta;


        var context = getAudioContext();
        if (context == null) {
            error("Sorry, this app needs advanced web audio. Your browser doesn't"
                + " support it. Try the la