There are view it форма1 in форме1 have a dropdown with cities, next to the button "add city", when you click opens modelka is sent to ajax get a 2 add a city to modelco. Next you need to send 2 and update here calls a dropdown in форме1.
What I have a problem:
if modelka out формы1 - couldn't invoke pjax piece of code dropdown
if modelka inside формы1 - and форма2 inside, and therefore the submit is triggered on форму1
Probably need to eat and to see the brain working on the problem. But can someone with a working brain "tyknet nose"?