HCM Process and Forms

Hi,

I have a requirement ,When user selects the entry the other drop downs ...should be changed automatcially.

to be specific the the drop are not linked any where..means the check tables are not linked.

when i select the firs drop down,the drop values of the second one should be populated based on some logic.

Scenario:

When the user selects the position in the drop down,the value of the Personnel area drop down and personnel sub area should be populated ,the value of personnel are and Personnel sub area should be Retrieved from the position infotype 1008.

Kindly suggest the ways how it can be developed and what are the development needs

Thanks,

Nachy