Twenga configuration Sub-Total String

Hi,

i have inserted this code into new file order_confirmation.override.tpl to track the sales of my shop.


<script language="javascript" type="text/javascript" src="http://tracker.twenga.fr/xxxxxxxxxxxxxxxxxxxxxx"></script><br />
<br />
<script language="javascript" type="text/javascript"><br />
<br />
var track = new twengaTrack();<br />
<br />
track.totalHT = "{$order_info.total}";<br />
<br />
track.orderId= "{$order_info.order_id}";<br />
<br />
track.twNewOrder();<br />
<br />
track.twSend();<br />
<br />
</script>
```<br />
<br />
But i have a little problem; the order id is correctly recorded by the tracking system while the subtotal of the order isn't route. Which is the correct string for subtotal ?<br />
<br />
Thanks