ga or _gaq.push for Google Analytics event tracking?

Question

I would like to track an onclick of a button on a page on a site, after a condition is passed checking if a cookie is present.

Very simple but which syn

Answer 1

/* universal event tracking */
function trackEventTag(category, action, opt_label) {
    /* analytics.js send event */
    ga('send', 'event', { 'eventCategory': category, 'eventAction': action, 'eventLabel': opt_label });
    /* add delay or additional tracking here */
    return true;
}
/* send ga.js _gaq.push() events to universal tracker */
var _gaq = window._gaq || {
    push: function (ar) {
        if (ar && ar.constructor === Array && 0 in ar) {
            if (ar[0] == '_trackEvent') {
                var category = 1 in ar ? ar[1] : null, action = 2 in ar ? ar[2] : null, opt_label = 3 in ar ? ar[3] : null;
                return trackEventTag(category, action, opt_label);
            }
            /* test for others you want to translate here */
        }
        return true;
    }
};