Runtime Validation

[ashrafzia]

Hi Gurus!

 

I wana do some runtime validation. For example, i have a form with some check boxes.

like :

 

Select Toys Cat: Airoplanes checkbox1, Cars checkbox2

 

if someone checks airoplanes then

 

all different types of airoplanes names should come in a multiple selection listbox below in the following format.

Suppose:

 

Selected toys : fighter plane

                      resuce plane

                      passenger plane etc.....

 

Any idea! How can i do this thing.

 

If this thing was to be done in a software like Vb.net etc then it was a piece of cake, i m wondering how can i do such thing in php???