Добавление rel="nofollow" в редакторе FroalaEditor?

function showOkno_Link(id) {
    $('#okno-link_' + id).dialog({
        modal: true,
        open: function (event, ui) {
        $(".ui-widget-overlay").css({
            opacity: .58,
            filter: "Alpha(Opacity=80)",
            backgroundColor: "black"
        });
    	},
        autoOpen: true,
        show: 'blind',
        hide: 'blind',
        width: 350
    });
};