Checkbox is checked within repeating section, change another fields value

I have repeating section, the rows contain a checkbox, date field and people picker fields. Once checkbox is checked within a certain row, I want to set the date and people picker fields in that row.

Repeating section, CSS class: myRepSection

Checkbox  CSS class: myCheckBox ; Control CCS class : myCheckBox

Checkbox  CSS class: myDateFld ; Control CCS class : myDateFld

Checkbox  CSS class: myPeoplePkr ; Control CCS class : myPeoplePkr       

Thanks.