CVV image in tooltip is not showing properly in Authorize.net form

[rvbgnu]

Hello,

A client reported me an issue with Authorize.net.
The quick fix was to un-comment this line JHTML (following the method declaration)

Code Select Expand

function plgVmDisplayListFEPayment(VirtueMartCart $cart, $selected = 0, &$htmlIn) {

                JHTML::_ ('behavior.tooltip');


from here
http://dev.virtuemart.net/projects/virtuemart/repository/revisions/8855/entry/trunk/virtuemart/plugins/vmpayment/authorizenet/authorizenet.php#L123

I suppose that the call to JHTML::_ ('behavior.tooltip') is/was done by the template or by Joomla, but the template side is not familiar to me. Do you know what should be done to safely fix this?

Kind regards,
Hervé