Struts- checkBox default set problem

Hi guys,
I am new to Java Web Framework. especially Struts....
I have a module to complete and I am stuck with this Problem
Plz help me out

The Problem is I have to defaultly check all the checkboxes that appear on the screen.

For displaying the Checkboxes I am using Struts and DynamicValidation form to validate it.

But I am not able to make it Checked by default and then manipulate the value.. Every Help is heartily accepted.....


Help me out Geeks and Genuis.

Regards