I have two radio groups having two buttons each in a page.as... <input type="radio" name="group1" value="Yes">Yes<br> <input type="radio" name="group1" value="No" checked>No<br> <hr> <input type="radio" name="group2" value="Yes">Yes<br> <input type="radio" name="group2" value="No" checked>No<br> where the "NO" is initially set true... Now I want when the user set the "YES" in any one of the groups as true(i.e. checked),the "YES" option in the other group to be checked automatically.... How can I do that???