Handling HTML5 geolocation with Google Tag Manager

function getLocation() {
    ST_dataLayer.push({'event':'geolocask'});
    if (navigator.geolocation) {
        // traitement de la géoloc
        ST_dataLayer.push({'event':'geolocok'});
    } else {
        // geoloc refusée
        ST_dataLayer.push({'event':'geolocko'});
    }
}