(function ($) {
    $.extend({ metadata: { defaults: { type: 'class', name: 'metadata', cre: /({.*})/, single: 'metadata' }, setType: function (type, name) { this.defaults.type = type; this.defaults.name = name; }, get: function (elem, opts) {
        var settings = $.extend({}, this.defaults, opts); if (!settings.single.length) settings.single = 'metadata'; var data = $.data(elem, settings.single); if (data) return data; data = "{}"; if (settings.type == "class") {
            var m = settings.cre.exec(elem.className); if (m)
                data = m[1];
        } else if (settings.type == "elem") {
            if (!elem.getElementsByTagName)
                return undefined; var e = elem.getElementsByTagName(settings.name); if (e.length)
                data = $.trim(e[0].innerHTML);
        } else if (elem.getAttribute != undefined) {
            var attr = elem.getAttribute(settings.name); if (attr)
                data = attr;
        }
        if (data.indexOf('{') < 0)
            data = "{" + data + "}"; data = eval("(" + data + ")"); $.data(elem, settings.single, data); return data;
    } 
    }
    }); $.fn.metadata = function (opts) { return $.metadata.get(this[0], opts); };
})(jQuery);