Here is my problem.
I would like to to install a tracker in the : /magento/app/design/frontend/default/blank/template/checkout/success.phtml file.
Here is the tracker :
<img src="http://affiliation./affilie.php?idb=XXXXX&numcom;=XXXX&montant;=MySubtotalValue" border="0" />
So i need to set MySubtotalValue (without tax and delivery) in this img tag as 35.28 for example
Does anyone have the solution ?