Hi,

I have absolutely no experience with javascript nor PHP.

Anyway, I have build a lot of forms and now want to launch an api payment window from a danish payment gateway provider.

This provider has given the following javascript example code, which I have entered as additional javascript code in the form:

<script charset="UTF-8" src="ssl.ditonlinebetalingssystem.dk/integrat...dow/paymentwindow.js" type="text/javascript"></script>
<script type="text/javascript">
paymentwindow = new PaymentWindow({
'merchantnumber': "1234567",
'amount': "10095",
'currency': "DKK"
});
</script>

Furthermore, they have given the code below as example in order to call the script - I have put this code into the additional code field for the submit button:

<input onclick="javascript: paymentwindow.open()" type="button" value="Go to payment">

But the external payment window is not called when I hit the submit button.
Can anybody help what the code for the two parts exactly should look like?

Thanks in advance,

Claus.