Added 'role' attribute to hidden tag fields of payment service form.

[ntalbott]

Issue by divineforest Friday Oct 11, 2013 at 09:30 GMT Originally opened as https://github.com/Shopify/active_merchant/pull/878

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Without this change it's not possible to programmatically find these input elements by Javascript integration-independently because fields like "order" will have other actual names as set by particular service mappings.

With this patch "order" input for example for Paysbuy integration will be:

<input id="inv" name="inv" role="payment-form-order" type="hidden" value="42">

So I can query it with

$("[role='payment-form-order']")

without having to know particular input name.

More info on "role" html attribute http://www.w3.org/TR/role-attribute/

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divineforest included the following code: https://github.com/Shopify/active_merchant/pull/878/commits