Youtube playslist - Jquery plugin

youtube-playlist.html

<div class="playlist clearfix" data-playlist="PLO9aNMUaQmH9Hdhq5ICGHOC6zrjJ0NQID"></div>
<div class="playlist clearfix" data-playlist="PLliN_STKLPP2_aiUEeewQA-R8GuS9o-25"></div>

$('.playlist').youtubePlaylist();

youtube-playlist.js

;(function( window, document, $, undefined ) {
    'use strict';

    var YTPlaylist = YTPlaylist || {};

    YTPlaylist.defaultOptions = {};

    YTPlaylist.init = function(element, options){
        var base = this;

        base.$element = $( element );
        base.element = element;
        base.idPlaylist = base.$element.data('playlist');
        base.$contentPlayer = $('<div />', {'class': 'contentPlayer'});
        base.$Player = $('<div />', {'id' : 'player_' + base.idPlaylist, 'class': 'player'});
        base.$contentPlaylist = $('<div />', {'id' : 'playlist_' + base.idPlaylist, 'class': 'playlist'});


        base.options = $.extend({}, YTPlaylist.defaultOptions, options );


        YTPlaylist.getPlaylist(base);

        base.$element.append( base.$contentPlayer.append(base.$Player), base.$contentPlaylist );

        base.YTjqxhr.done(function(data){
            base.playlist = data;

            YTPlaylist.titlePlaylist(base);
            YTPlaylist.constructHtmlPlaylist(base);
            YTPlaylist.videoPlayer(base.playlist.feed.entry[0].media$group.yt$videoid.$t, base.idPlaylist);
            YTPlaylist.eventItemPlaylist(base);
        });

    };

    YTPlaylist.titlePlaylist = function(base){
        $('<div />', {
            'class':'titlePlaylist',
            text : base.playlist.feed.media$group.media$title.$t
        }).prependTo(base.$element);
    };

    YTPlaylist.constructHtmlPlaylist = function(base){
        var item = base.playlist.feed.entry;
        var entryLength = item.length;
        var list = '<ul>';

        for (var i = 0; i < entryLength; i++) {
            list += '<li data-video="' + item[i].media$group.yt$videoid.$t + '">' + item[i].media$group.media$title.$t + ' duration ' + YTPlaylist.timeConvertor( item[i].media$group.yt$duration.seconds ) + '</li>';
        }

        list += '</ul>';

        base.$contentPlaylist.append(list);

    };

    YTPlaylist.eventItemPlaylist = function(base){

        base.$element.on('click', 'li', function(){

            var videoID = $(this).data('video');

            base.$contentPlayer.empty();

            base.$contentPlayer.append(base.$Player);

            YTPlaylist.videoPlayer(videoID, base.idPlaylist);

        });

    };

    YTPlaylist.timeConvertor = function(duration){
        var minutes = Math.floor(duration / 60),
            seconds = duration - minutes * 60,
            time;

        if( minutes < 10 ){
            minutes = '0' + minutes;
        }
        if( seconds < 10 ){
            seconds = '0' + seconds;
        }

        time = minutes + ':' + seconds;

        return time;
    };

    YTPlaylist.getPlaylist = function( base ){
        var realplaylist = '//gdata.youtube.com/feeds/api/playlists/' + base.idPlaylist;
        base.YTjqxhr = $.ajax({
            type: 'GET',
            url : realplaylist,
            data: { 'v': '2', 'alt':'json', 'format':'5', 'max-result': '50' },
            dataType : 'json'
        });
    };

    YTPlaylist.videoPlayer = function(idVideo, idPlaylist){
        new YT.Player('player_' + idPlaylist, {
            height: 200,
            width: 200,
            videoId: idVideo
        });
    };

    $.fn.youtubePlaylist = function( options ) {
        $.getScript('//www.youtube.com/player_api');
        // use each if more than one element in pages
        return this.each(function () {
            new YTPlaylist.init( this, options );
        });
    };

})( window, document, jQuery );