<script>
    dataLayer.push({"event": null, "eventLabel": null, "ecommerce": null});  /* Clear the previous ecommerce object. */
    dataLayer.push({
        'event': 'ee.checkout',
        'eventLabel': 'Checkout Step 3',
        'ecommerce': {'checkout': {'actionField': {'step': 3}}}
    });
</script>
[{$smarty.block.parent}]