wordpress rss javascript v1.1

<script type="text/javascript">
jQuery( document ).ready(function() {
    jQuery.ajax({
        url: '/kategori/arrangemang/feed/',
        dataType: 'xml',
        success: function(data) {
            var lt = String.fromCharCode(60);
            var items = data.getElementsByTagName("item");
            for(var index = 0; index < items.length; index++)
            {
                var item = items[index];
                var title = item.getElementsByTagName("title")[0].innerHTML.trim();
                var content = item.getElementsByTagNameNS("http://purl.org/rss/1.0/modules/content/", "encoded")[0].innerHTML.trim();
                content.substr(9, content.length-12);
                jQuery(".entry-content").append(lt + "h2>" + title + lt + "/h2>" + content);
            }
        }
    });
});
</script>