How can I have the form to popup when someone click a link in my website?

Instead of code my website, have you got a plugin or something else (maybe i didn't find by myself in jotform and i'm sorry for that...) who enable me to push pop up version form when a user reach some url ?

Please try checking our Lightbox embed method: http://www.jotform.com/help/220-How-to-Create-a-Lightbox-Form.

Let us know if works for you or not. If not, please share us an example so we can check and then let you know.

Thanks