Problem clicking buttons

Hi,
Not sure if I am posting to the proper group. I have some buttons on an
HTML form. When I click a button, it just gives the button focus. Then I
need to click again for the onClick actions to take place. How do I get
the buttons to work on the fist clck, rather two click or double click. I
have set tab order and have used xxx.focus() to give the first field on
the form focus after the form loads. Can this be screwing the buttons up.
Any help would be appreciated.

Thanks
Mike