Is it possible to show the thank you page in a new window or tab?

2) Is there a way to have the thank you message pop up in the reveal modal (from foundation 5) instead of giving me another page?

Hello orbitcs,

Unfortunately, there is no inbuilt feature to display the thank you message in a new / popup window. 

Since you are already using your form's source code to embed your form in your web page, you may like to take a look at the following thread where one of my colleague have given a step by step guide to show thank you message in a popup window:  http://www.jotform.com/answers/181798-Ability-to-show-the-Thank-You-Message-in-a-pop-up-version-so-that-users-can-simply-close-the-pop-up-window-and-go-back-to-site

Hope this helps.

Do get back to us if you have any questions.

Thank you!