(function ($) {
    $.fn.act = function (conversionId, label) {
        return this.each(function () {
            $this = $(this);
            $this.click(function () {
                var image = new Image(1, 1);
                image.src = 'http://www.googleadservices.com/pagead/conversion/' + conversionId + '/?label=' + label + '&guid=ON&script=0';                
            });
        });
    };
})(jQuery);