Upload button WP 3.5

jQuery(document).ready(function($)
{
    /**
     * Versión 1
     * De aqui conseguimos sacar el tamaño elejido
     * pero no consigo cambiar el texto del botón
     */
    var _custom_media = true,
      _orig_send_attachment = wp.media.editor.send.attachment;
    function b5f_add_image1(button)
    {
        _custom_media = false;
       // var _orig_send_attachment = wp.media.editor.send.attachment;
        //var id = button.attr('id').replace('_button', '');
        var parent = $(button).parent().parent('div.field_row');
        var urlField = $(parent).find("input.meta_image_url");
        var titleField = $(parent).find("input.meta_image_title");
        var descField = $(parent).find("input.meta_image_desc");
        var idField = $(parent).find("input.meta_image_id");

        _custom_media = true;
        var my_options = {
                multiple: false
        };
        wp.media.editor.open(button,my_options);
        wp.media.editor.send.attachment = function(props, attachment)
        {
            var sel_size = attachment.sizes[props.size].url;
            if (_custom_media) {
                /* DATOS DE LA IMAGEN SELECCIONADA */
                //attachment.title;
                //attachment.description;
                //attachment.id;
            } else {
                return _orig_send_attachment.apply(this, [props, attachment]);
            }
            ;
        }
        return false;
    }

    /**
     * Versión 2
     * De aqui conseguimos cambiar el texto del botón
     * pero no consigo sacar el tamaño elejido
     */
    var file_frame;
    function b5f_add_image2(button)
    {
        // If the media frame already exists, reopen it.
        if (file_frame) {
            file_frame.open();
            return;
        }

        // Create the media frame.
        file_frame = wp.media.frames.file_frame = wp.media({
            title: 'upLoad Stuff',
            button: {
                text: 'Up button text',
            },
            library: {
                type: 'image'
            },
            //state:'insert',
            frame:'select',
            displaySettings: true,
            displayUserSettings:true,
            toolbar:    'select',
            search: true,
            editable:false,
            multiple: false  // Set to true to allow multiple files to be selected
        });

        // When an image is selected, run a callback.
        file_frame.on('select', function() {
            // We set multiple to false so only get one image from the uploader
            attachment = file_frame.state().get('selection').first().toJSON();
            console.dir(file_frame.state().get('selection'));

            //attachment.url;
            //attachment.title;
            //attachment.description;
            //attachment.id;
        });
        // Finally, open the modal
        file_frame.open();
    }

    /* Upload image */
    $('#field_wrap').on('click', '.field_right .button-add', function() {
        b5f_add_image1( $(this) );
    });

});