NewListItemForm with pre-defined values from selected Entry inside form

Question

i got two lists. One is called 'Projects' the other one 'Reports'. When i insert a new report i got the following fields

Associated Project: <LOOKUP FROM PROJECTS_TITLE>
Current StartDate: <I WANT TO GRAB THIS VALUE FROM PROJECTS_STARTDATE DEPENDING ON SELECTED LOOKUP>
Current EndDate: <I WANT TO GRAB THIS VALUE FROM PROJECTS_ENDDATE DEPENDING ON SELECTED LOOKUP>
New StartDate: <DATEPICKER>
New EndDate: <DATEPICKER>

This should be something pretty trivial, but i am really lacking google skills to find out about how to manage this. I sort of had this running doing via InfoPath, but this is not wanted.

If there is a programmatically way (or SP-Only-Way) those are to be preferred.

With what keywords can i find about what i want to do with StartDate and EndDate

Answer 1

This is not so trivial. Take a look at SPServices and see if it fits.

And take a look at this QA:

Pull values from a lookup column using SPServices()