Thanks & Regards<br />Vijay S. Dongapure<br /> <br />Programming was never easier before
Here are two possible ways of handling a dependent select box.
1- Use the onchange event of the first select box to submit the form. Then have the action class read the value of the first select box, populate the values for the second box, and redisplay the page. In order for this to work, you will have to set some sort of flag to indicate you're only submiting the form to change the select box, not to signify the data is complete and ready to be processed.
If you just want to get your project done on time, I'd suggest using method 1. If you want to explore new territory, method 2 would be a good choice.