function embedPlaylist_init(playlistID) {
    embedPlaylist_show(playlistID, 0);
}

function embedPlaylist_show(playlistID, index) {
    var items = $$("#" + playlistID + " div.embed");
    for (var i = 0; i < items.length; i++) {
        items[i].hide();
    }
    items[index].show();
}

function embedPlaylist_next(playlistID) {
    var items = $$("#" + playlistID + " div.embed");
    for (var i = 0; i < items.length; i++) {
        if (items[i].getStyle('display') == 'block') {
            items[i].hide();
            if (i == items.length - 1) {
                items[0].show();
                items[0].innerHTML = items[0].innerHTML;
            }
            else {
                items[i+1].show();
                items[i+1].innerHTML = items[i+1].innerHTML;
            }
            break;
        }
    }
}

function embedPlaylist_previous(playlistID) {
    var items = $$("#" + playlistID + " div.embed");
    for (var i = 0; i < items.length; i++) {
        if (items[i].getStyle('display') == 'block') {
            items[i].hide();
            if (i == 0) {
                items[items.length - 1].show();
                items[items.length - 1].innerHTML = items[items.length - 1].innerHTML;
            }
            else {
                items[i - 1].show();
                items[i - 1].innerHTML = items[i - 1].innerHTML;
            }
            break;
        }
    }
}