jQuery Forum

I am making a form where people can sign up to my website. I am taking there name and password and all that good stuff. I am using jquery form validation plug in to check the info and it works great (http://docs.jquery.com/Plugins/Validation/Methods). My problem is that I am using "remote" to check a field in my form called "promo code" to see if it is a valid promo code. This works great but I if it is a valid promo code I want to update another div on the page (where it says the price). I am stuck!

So I guess my question is: How can I update a seperate div on the page based on whether or not a field passing the validation I set up with the jquery validator plugin?