Helping to search this scenario

Helping to search this scenario

Is it possible in jquery these scenarios.

I have form which include text field called 'ID', I want to add specific person under name field, so the user will click the link (add person) and show a modal form or ajax form on the fly, (A post variable 'ID' will included to ajax/modal form so there's a unique id under it) after he/she is done filling up the ajax or modal form the page will  redirect to a form where he/she begun filling up.(important that the head form will not be refreshed after filling up the modal form)

if this is possible can you give me some head start so I can start this project? maybe ask form a link.

thank you