Javascript:pls Help.im A Newbie

Hello everyone,
How do can I automatically uncheck a checkbox?
(Im really sorry this question may be way to easy for you guys....but i really dont have any idea....plss help.)

:cry:

Automatically such as? On a button, timer, hovering over an image or something?

You can control the checked state of a checkbox using its checked property.

chckbx.checked = true;
checks it and
chckbx.checked = false;
unchecks it.

But like Tom I don't know what you mean by automatically.

Thanks cornedbee...that's jud what i needed.. hehe... :p