Execute javascript function after clicking ok button on event creation DayPilot Month.

Hello!
My name is Roby.
I'm using DayPilot Month Lite in my project.
I need to trigger a javascript function after I click the OK Button into the event creation alert.
My big questions (after reading and testing the daypilot js) is:
1- where can i find the alert popup into the javascript code?
2- where can i find the call to BackEnd Creation Month Event into javascript code?
3- where can i put my js function code to execute it after event creation (but before rendering the page)?

Thanks in advance and have a nice day.