JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If I understand you correctly, you would like to have a popup window in your form. Could you please indicate the form you were able to accomplish this.
Currently this is not possible. To accomplish this you would need to embed the form in a web site and add a script so your form will popup in a new window.