Variable Redirect or Disable Confirmation

I am using fancybox to display a gravity form in my template files. The form is built into the wordpress header and appears on every page. Ideally I would like to totally deactivate the confirmation so that once the form is submitted the fancybox closes and the user is not redirected to another page or presented with a confirmation. Is this possible?

An alternate solution would be to use php to get the current URL and redirect to that same page. Is this an option?

I appreciate any advice you could provide for either possible solution.

I did and the result was that after submission the lightbox closed and an empty lightbox reappeared.

I did wind up finding a solution which was to add a hidden field that captured the entry ID, then using the redirect with query to send users back to the same page.