Mandatory information in Checkout comments box

[pewe]

I need to enforce customers to enter information on either the Delivery or Payment information pages in the 'Add Comments About your Order' box before they can proceed to Order confirmation.

 

The reason for this is that we need to have some information from the customer about their product choices that would be too complex to include as Attributes, or in any other way.

 

The easiest way to do this (I suspect) is:

i) to change the heading of the box from 'Add Comments About YOur Order' to whatever message we wanted - eg 'This is the other information required about my product choices to process the order'

 

ii) to add a tick box on the page with a statement that says something like 'I have added the required information', and if the box is not ticked the page returns with an error telling them to add the comments and/or tick the box before they can proceed.

 

Does anyone have any suggestions - either a pointer to a contribution that would do this, or pointers on which script to modify and how.

 

Thanks