Problem facing in my project

[swapna.batchu]

Hi,

I have been facing one issue related to my project requirements, here the mentioned below one is such requirement
In a web based application: (not window based)
Let say i have two list boxes 1. list1 2.list2
list1 consists of two list field values of 'Val1', 'Val2'
list2 consists of two list field values of 'Val11', 'Val111','Val22', 'Val222'
i) When i select 'Val1' from 'list1' it shown the child values of 'Val11', 'Val111', under 'list2'
ii) When i select 'Val2 from 'list1' it shown the child values of 'Val22 'Val222' under 'list2'
here i need to genereate a script that , it is displaying the corresponding child values under 'list2' (val22, val222 for selecting 'val2')
Please help me in this regard .
Please let me know if u need any information apart from this..