Our organization is a non-profit and is running our "store" on a "suggested donation" basis. I've gone in and modified (using jQuery) our cart and checkout verbage to reflect that these are donations and not purchases. This is all fine and good.
What we'd like to also do is give people the option of adding an additional donation at checkout. I set this all up using the tax field as my additional donation line. Everything is dandy until the total is updated when I choose a shipping option or click submit, then the additional donation gets zeroed out.
Can you point me in the right direction as to how to make this work?
I'll whisper a link to our development site. Thanks.