Help on Disabling button on ui page

[BEBOLD2]

This UI page is being opened from a UI Action, and it contains the following button, which should be disabled/hide initially:

<g:dialog_buttons_ok_cancel cancel="return cancelDialog()" ok="return submitDialog()"/>

[BEBOLD2]

Well, I wish to use normal button but I have some existing processing script already exists which I  don't want to disturb..So, trying to resolve with any workaround for hiding/disabling the <g:dialog_button>