jq.fn.spin = function (opts) {
    this.each(function () {
        var $this = jq(this),
        spinner = $this.data('spinner');

        if (spinner) spinner.stop();
        if (opts !== false) {
            opts = jq.extend({ color: $this.css('color') }, opts);
            spinner = new Spinner(opts).spin(this);
            $this.data('spinner', spinner);
        }
    });
    return this;
};