Disable Standard shipping when Custom field is selected

[Kashif Nawaid]

Hello there,

Joomla version : 2.5.24
Virtuemart Version : 2.6.6
VP One Page Checkout: Ver 1.8

I have a particular requirement that when customer select a custom field (Stitching) then the Standard Payment has to Disable.

how can i do this???

[GJC Web Design]

IMHO can only be done with javascript hiding the payment method when custom field is selected

[Kashif Nawaid]

can i get the javascript ??

and where to put it.