What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
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 you are referring to the form ID for your Google Gadget, here's how to get it.
Basically your form ID is the long string of numbers at the end of the form URL.
1. While on edit mode, click on Embed Form
2. Copy the form URL so you can easily take the form ID.
Here's a screenshot: