Radio Button group value change

[heldermauricio]

Hello,
is it possible to change a radio button group value with javascript ?

For example i've two radio buttons of the same group one as the value "Y" (yes) and the other as the value "N" (No), and when i
click a button on the screen the value of the radio button group should be set to "N", how can i do this with JS ?

I hope i could explain my question right.

Thank you in advance.