formatting dates with jquery.rss

customdate.js

$("#rss-styled").rss("http://www.recruiter.com/feed/career.xml", {
    limit: 5,
    dateFormatFunction: function (date) {
        var realDate = new Date(date);
        return realDate.getFullYear() + "-" + (realDate.getMonth() + 1) + "-" + realDate.getDate();
    },
    layoutTemplate: '<dl class="dl-horizontal">{entries}</dl>',
    entryTemplate: '<dt><a href="{url}">{title}</a></dt><dd>{shortBodyPlain}[{author}@{date}]</dd>'
}).show();