Google Analytics event catcher

analytics-event-catch.js

document.addEventListener('click', function (e) {
    if (e.target.hasAttribute('data-ga')) {
        catchGaEvent(e)
    }
})

function catchGaEvent(e) {
    var el = e.target

    var event = el.getAttribute('data-ga'),
        action = el.getAttribute('data-ga-action'),
        description = el.getAttribute('data-ga-desc') || el.getAttribute('data-ga-description')

    if (!event || !action) {
        return
    }

    var categories = String(event).split('|'),
        actions = String(action).split('|')

    categories.forEach(function (cat) {
        actions.forEach(function (act) {
            // (window._gaq = window._gaq || []).push(['_trackEvent', cat, act, description])
            window.ga && ga('send', 'event', cat, act, description)
        })
    })
}

example.html

<a class="adv" href="external.html" target="_blank" 
            data-ga="ExternalLink" data-ga-action="Adv" data-ga-desc="External link to Adv">