Make one element Read-only based on values of other element

[ritesh123]

Hi All

I have two element
1. Radio Button ( It has 3 Values as "Start", "In Process", "End")
2. Field

At present both the element is editable, I want
when Someone selects "In Process" or "End" value the second element "Field" should become Readonly or No Access to Edit. It should be accessible to edit only when the value is on "Start" value of element 1

Can we achieve this with OOTB Fabrik elements or
Can we achieve this with PHP plugin. and how

Please let me know, Thanks! in advance

Regards
Ritesh

 

[startpoint]

http://demo.fabrikar.com/index.php/javascript-events/form/15/2