How do I transfer a form to my website

I want an online school application form with choice of department, courses and changing form number for each candidate

What you wanted is possible with Jotform. You can create an online school application form with us, and you can use the unique ID widget to assign form IDs.

Transferring the form on your website is also quite easy. There are different ways to do it though. Here are some of the common ways to embed the form into your website.

https://www.jotform.com/help/34-Adding-a-Form-to-a-Web-Page
https://www.jotform.com/help/67-Which-Form-Embed-Code-Should-I-Use

Hope that helps. Let us know if you have any other concerns.