elFinder

Hello, I'm trying to change the languaje of the elFind, but it still is in english. Here is the code:

<!-- jQuery and jQuery UI -->
    <script src="js/jquery-1.6.1.min.js" type="text/javascript" charset="utf-8"></script>
    <script src="js/jquery-ui-1.8.13.custom.min.js" type="text/javascript" charset="utf-8"></script>
    <link rel="stylesheet" href="css/smoothness/jquery-ui-1.8.13.custom.css" type="text/css" media="screen" charset="utf-8">

    <!-- elRTE -->
    <script src="js/elrte.min.js" type="text/javascript" charset="utf-8"></script>
    <link rel="stylesheet" href="css/elrte.min.css" type="text/css" media="screen" charset="utf-8">

    <!-- elRTE translation messages -->
    <script src="js/i18n/elrte.es.js" type="text/javascript" charset="utf-8"></script>

    <!-- elFinder -->
    <script src="js/i18n/elfinder.es.js" type="text/javascript" charset="utf-8"></script>
    <link rel="stylesheet" href="css/elfinder.css" type="text/css" media="screen" title="no title" charset="utf-8">
    <script src="js/elfinder.min.js" type="text/javascript" charset="utf-8"></script>

    <script type="text/javascript" charset="utf-8">
        $().ready(function() {
            var opts = {
                cssClass : 'el-rte',
                lang     : 'es',
                height   : 450,
                toolbar  : 'normal',
                cssfiles : ['css/elrte-inner.css'],
                allowSource : false,
                fmAllow : true,
                fmOpen : function(callback) {
                    $('<div id="myelfinder" />').elfinder({
                    url : 'connectors/php/connector.php',
                    lang : 'es',
                    dialog : { width : 900, modal : true, title : 'Files' }, // open in dialog window
                    closeOnEditorCallback : true, // close after file select
                    editorCallback : callback     // pass callback to file manager
                    })
                }
            }
            $('#editor').elrte(opts);
        })
    </script>

I need your help. Thanks in advance.
Regards